分享两个短链算法 1、Hash，与运算，映射，位移MD5来Hash；32位分成四份进行与运算，每份保留30位，这30位分成6段, 每5个一组，算出其整数值，然后映射到准备的62个字符中, 依次进行获得一个6位的短链接地址。<?php function shorturl($longurl) { //hash私钥(被改进部分) //$shorturlkey = '2rcwzfsefw'; //生成随机字串符(ASCII)(改进部分) //$shorturlkey = ''; //for ($i=0; $i <= 15; $i++) { // $shorturlkey .= chr(mt_rand(33,63)); // $shorturlkey .= chr(mt_rand(64,126)); //} //映射字符(被改进部分) $base62 = array('a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'); //对映射字符乱序(改进部分) //shuffle($base62); // 利用md5算法方式生成hash值 //$urlhex = hash('md5', $shorturlkey.$longurl); $urlhex = md5($shorturlkey.$longurl); //计算hash后的长度 $urlhexlen = strlen($urlhex); //长度除以8 $subHexLen = $urlhexlen / 8 ; $output = array(); //处理过程 for ($i = 0; $i < $subHexLen; $i++) { // 将这32位分成四份，每一份8个字符，将其视作16进制串与0x3fffffff(30位1)与操作 $subHex = substr($urlhex, $i*8, 8); $idx = 0x3FFFFFFF &amp; (1 * ('0x' . $subHex)); $out = ''; // 这30位分成6段, 每5个一组，算出其整数值，然后映射到62个字符 for ($j = 0; $j < 6; $j++) { $val = 0x0000003D &amp; $idx; $out .= $base62[$val]; $idx = $idx >> 5; } $output[$i] = $out; } //输出生成的四个当中的随机一个(改进部分) //return $output[mt_rand(0,3)]; //(被改进部分) return $output; } ?>不足经过实际测试（每次生成5K），原始代码重复率很大，一开始可能只有0.000x%，到后来可能上升到0x%。。。改进对映射的字符进行随机排位，最后输出的时候只随机输出4个当中的一个，碰撞几率同下2、纯随机 <?php function shorturl_rand(){ //循环随机，如果要修改位数，直接修改循环条件中的$i小于(n-1)即可 for ($i=0,$b=''; $i <5 ; $i++) { //随机当前位为数字还是小写字母以及大写字母 $a = mt_rand(0,2); //选择器 switch ($a) { case 0: //随机数字 $b .= chr(mt_rand(48,57)); break; case 1: //随机小写字母 $b .= chr(mt_rand(97,122)); break; case 2: //随机大写字母 $b .= chr(mt_rand(65,90)); break; break; default: break; } } return $b ; } ?>纯随机，碰撞几率最低，性能消耗可能是同类中最低。

VB蓝屏代码-超邪恶 添加一个timer如图代码：Dim ctCi As Long, ctT As Long, ctExitT As Long, ctStr() As String, ctStrS As Long, ctExit As Boolean Private Declare Function SetWindowPos Lib "user32" (ByVal hWnd As Long, ByVal hWndInsertAfter As Long, ByVal X As Long, ByVal Y As Long, ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long) As Long Private Sub Form_Load() ctExitT = 12 '程序自动退出的时间（秒），可根据自己的喜好设定 Me.BackColor = RGB(0, 0, 255): Me.Caption = "蓝屏死机" Me.AutoRedraw = True: Me.WindowState = 2 Me.Font.Size = 21: Me.ForeColor = &amp;HFFFFFF Timer1.Interval = 50: Timer1.Enabled = True ReDim ctStr(0 To 0) End Sub Private Sub Form_Click() If ctExit Then Unload Me End Sub Private Sub Form_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single) '单击左上角 20 个像素范围 Dim S1 As Single S1 = Me.ScaleX(20, 3, Me.ScaleMode) If X > S1 Or Y > S1 Then ctCi = 0: Exit Sub ctCi = ctCi + 1 If ctCi > 4 Then Call ExitInf End Sub Private Sub ExitInf() Timer1.Enabled = False: Me.WindowState = 0: ctCi = 0: ctExit = True Me.Move Screen.Width * 0.1, Screen.Height * 0.1, Screen.Width * 0.8, Screen.Height * 0.8 ctStrS = -1 AddStr "哈哈，一个玩笑" AddStr "结束本程序：单击蓝色区任意位置" Call ShowStr End Sub Private Sub Timer1_Timer() Static Ci As Long WinInTop Me.hWnd, True '始终将窗体保持在最前面，使用户无法使用开始菜单、任务管理器，无法操作任何程序 Ci = Ci + 1 If Ci * Timer1.Interval < 1000 Then Exit Sub '保证一秒钟计数一次 Ci = 0: ctExitT = ctExitT - 1: ctT = ctT + 1 If ctExitT < 1 Then Call ExitInf: Exit Sub Select Case ctT Case 1 ctStrS = -1 AddStr "Your Windows is died" Call ShowStr Case 5 ctStrS = -1 AddStr "Windows 警告" AddStr "内存出现严重错误" Call ShowStr Case 10 To 24 ctStrS = -1 AddStr "警告" AddStr "硬盘错误，无法正常运行 Windows" AddStr "Windows 正在试图修复所有错误" AddStr "请等待 " &amp; ctExitT &amp; " 秒……" Call ShowStr Case 25 ctStrS = -1 AddStr "警告" AddStr "由于你使用了盗版操作系统" AddStr "微软惩罚你：定期死机" Call ShowStr Case Else If ctT > 30 Then ctT = 0 End Select End Sub Private Sub AddStr(nStr) ctStrS = ctStrS + 1 ReDim Preserve ctStr(0 To ctStrS): ctStr(ctStrS) = nStr End Sub Private Sub ShowStr() Dim I As Long, S1 As Single, Y0 As Single, Y As Single, Hj As Single S1 = Me.TextHeight("A"): Hj = 0.5 '行高和行距 Y0 = S1 * (1 + Hj) * (1 + ctStrS) - S1 * Hj Y0 = (Me.ScaleHeight - Y0) * 0.5 Me.Cls For I = 0 To ctStrS Me.CurrentX = (Me.ScaleWidth - Me.TextWidth(ctStr(I))) * 0.5 Me.CurrentY = Y0 + I * S1 * (1 + Hj) Me.Print ctStr(I) Next End Sub Private Sub WinInTop(nWnd As Long, Optional InTop As Boolean) Const HWND_NoTopMost = -2 '取消在最前 Const HWND_TopMost = -1 '最上 Const SWP_NoSize = &amp;H1 'wFlags 参数 Const SWP_NoMove = &amp;H2 Const SWP_NoZorder = &amp;H4 Const SWP_ShowWindow = &amp;H40 Const SWP_HideWindow = &amp;H80 Dim nIn As Long If InTop Then nIn = HWND_TopMost Else nIn = HWND_NoTopMost SetWindowPos nWnd, nIn, 0, 0, 0, 0, SWP_NoSize + SWP_NoMove End Sub

使用 Google API 生成二维码 Google API 可以非常方便的调用，下边的链接是一个示例：[btnheart href="http://chart.apis.google.com/chart?cht=qr&chs=150x150&chld=L|2&chl=https://nobb.cc" target="_blank"]我是示例[/btnheart]参数解释：1、http://chart.apis.google.com/chart? 调用Google API2、cht=qr 选择生成类型为 qr 码。3、chs=150×150 设置二维码图片大小。4、chld=L|4 L表示默认纠错水平；4表示二维码图片的留白大小，留白的大小也是计算在二维码图片大小内的，可选值为 1~4 的整数。5、chl=https://nobb.cc为二维码内容。一般 WordPress 文章页可以使用下边的代码调用二维码，具体自己调节参数。<img src="http://chart.apis.google.com/chart?cht=qr&amp;chs=150x150&amp;chld=L|2&amp;chl=<?php the_permalink(); ?>" class="qrcode pic" width="150" height="150" alt="qrcode" />由于 Google 服务器对国内不太稳定，所以我们可以把二维码图片缓存到本地来解决这一缺陷。首先将下边的代码扔到当前主题的 functions.php 的最后一个 ?> 前。/* *Bing - function - 二维码配置 *Form:www.bgbk.org */ //二维码缓存 function Bing_qr($url,$path,$qrpic){ set_time_limit (10); $destination_folder = $path?$path.'/':''; $localname = $destination_folder .$qrpic; $file = fopen ($url, "rb"); if($file){ $newf = fopen ($localname, "wb"); if($newf) while(!feof($file)){ fwrite( $newf, fread($file, 1024 * 2 ), 1024 * 2 ); } } if($file){ fclose($file); } if($newf){ fclose($newf); } } //生成二维码地址 function Bing_echo_qr($imgsize = 150,$echo = true){ $cache = false; $cache = true; if(is_single() || is_page()) $imgname = get_the_id(); elseif (is_home() || is_front_page()) $imgname = 'home'; elseif(is_category()) $imgname = 'cat-'.get_query_var('cat'); elseif(is_tag()) $imgname = 'tag-'.get_query_var('tag_id'); if(!is_home()) $permalink = get_permalink(); else $permalink = get_option('home'); if($cache){ $localqr = ABSPATH .'qrcode/'.$imgname.'.jpg'; if(!file_exists($localqr)){ Bing_qr("http://chart.googleapis.com/chart?cht=qr&amp;chs=".$imgsize."x".$imgsize."&amp;choe=UTF-8&amp;chld=L|0&amp;chl=".$permalink ,"qrcode", $imgname.".jpg"); } $main = get_home_url('').'/qrcode/'.$imgname.'.jpg'; } else $main = "http://chart.googleapis.com/chart?cht=qr&amp;chs=".$imgsize."x".$imgsize."&amp;choe=UTF-8&amp;chld=L|0&amp;chl=".$permalink; if($echo) echo $main; else return $main; } //输出二维码 function Bing_echo_qrcode($imgsize = 150){ echo '<img src="'.Bing_echo_qr($imgsize,false).'" class="qrcode" width="'.$imgsize.'" height="'.$imgsize.'" alt="qrcode" />'; }然后在需要调用二维码的地方使用下边的函数就行了：<?php if(function_exists('Bing_echo_qrcode')&amp;&amp;function_exists('Bing_echo_qr')&amp;&amp;function_exists('Bing_qr')) Bing_echo_qrcode(150);?>其中的 150 为二维码大小，可以自己修改。如果想关闭二维码缓存只需要将第一段代码的 30 行 $cache = true; 注释掉即可。

完美扫描PHP特殊一句话后门-【扫描脚本】 代码如下 保存为*.php<?php error_reporting(E_ERROR); ini_set('max_execution_time',20000); ini_set('memory_limit','512M'); header("content-Type: text/html; charset=gb2312"); $matches = array( '/function\_exists\s*\(\s*[\'|\"](popen|exec|proc\_open|system|passthru)+[\'|\"]\s*\)/i', '/(exec|shell\_exec|system|passthru)+\s*\(\s*\$\_(\w+)\[(.*)\]\s*\)/i', '/((udp|tcp)\:\/\/(.*)\;)+/i', '/preg\_replace\s*\((.*)\/e(.*)\,\s*\$\_(.*)\,(.*)\)/i', '/preg\_replace\s*\((.*)\(base64\_decode\(\$/i', '/(eval|assert|include|require|include\_once|require\_once)+\s*\(\s*(base64\_decode|str\_rot13|gz(\w+)|file\_(\w+)\_contents|(.*)php\:\/\/input)+/i', '/(eval|assert|include|require|include\_once|require\_once|array\_map|array\_walk)+\s*\(\s*\$\_(GET|POST|REQUEST|COOKIE|SERVER|SESSION)+\[(.*)\]\s*\)/i', '/eval\s*\(\s*\(\s*\$\$(\w+)/i', '/(include|require|include\_once|require\_once)+\s*\(\s*[\'|\"](\w+)\.(jpg|gif|ico|bmp|png|txt|zip|rar|htm|css|js)+[\'|\"]\s*\)/i', '/\$\_(\w+)(.*)(eval|assert|include|require|include\_once|require\_once)+\s*\(\s*\$(\w+)\s*\)/i', '/\(\s*\$\_FILES\[(.*)\]\[(.*)\]\s*\,\s*\$\_(GET|POST|REQUEST|FILES)+\[(.*)\]\[(.*)\]\s*\)/i', '/(fopen|fwrite|fputs|file\_put\_contents)+\s*\((.*)\$\_(GET|POST|REQUEST|COOKIE|SERVER)+\[(.*)\](.*)\)/i', '/echo\s*curl\_exec\s*\(\s*\$(\w+)\s*\)/i', '/new com\s*\(\s*[\'|\"]shell(.*)[\'|\"]\s*\)/i', '/\$(.*)\s*\((.*)\/e(.*)\,\s*\$\_(.*)\,(.*)\)/i', '/\$\_\=(.*)\$\_/i', '/\$\_(GET|POST|REQUEST|COOKIE|SERVER)+\[(.*)\]\(\s*\$(.*)\)/i', '/\$(\w+)\s*\(\s*\$\_(GET|POST|REQUEST|COOKIE|SERVER)+\[(.*)\]\s*\)/i', '/\$(\w+)\s*\(\s*\$\{(.*)\}/i', '/\$(\w+)\s*\(\s*chr\(\d+\)/i' ); function antivirus($dir,$exs,$matches) { if(($handle = @opendir($dir)) == NULL) return false; while(false !== ($name = readdir($handle))) { if($name == '.' || $name == '..') continue; $path = $dir.$name; if(is_dir($path)) { //chmod($path,0777);/*主要针对一些0111的目录*/ if(is_readable($path)) antivirus($path.'/',$exs,$matches); } elseif(strpos($name,';') > -1 || strpos($name,'%00') > -1 || strpos($name,'/') > -1) { echo '特征 <input type="text" style="width:218px;" value="解析漏洞"> '.$path.'<div></div>'; flush(); ob_flush(); } else { if(!preg_match($exs,$name)) continue; if(filesize($path) > 10000000) continue; $fp = fopen($path,'r'); $code = fread($fp,filesize($path)); fclose($fp); if(empty($code)) continue; foreach($matches as $matche) { $array = array(); preg_match($matche,$code,$array); if(!$array) continue; if(strpos($array[0],"\x24\x74\x68\x69\x73\x2d\x3e")) continue; $len = strlen($array[0]); if($len > 6 &amp;&amp; $len < 200) { echo '特征 <input type="text" style="width:218px;" value="'.htmlspecialchars($array[0]).'"> '.$path.'<div></div>'; flush(); ob_flush(); break; } } unset($code,$array); } } closedir($handle); return true; } function strdir($str) { return str_replace(array('\\','//','//'),array('/','/','/'),chop($str)); } echo '<form method="POST">'; echo '路径: <input type="text" name="dir" value="'.($_POST['dir'] ? strdir($_POST['dir'].'/') : strdir($_SERVER['DOCUMENT_ROOT'].'/')).'" style="width:398px;"><div></div>'; echo '后缀: <input type="text" name="exs" value="'.($_POST['exs'] ? $_POST['exs'] : '.php|.inc|.phtml').'" style="width:398px;"><div></div>'; echo '操作: <input type="submit" style="width:80px;" value="scan"><div></div>'; echo '</form>'; if(file_exists($_POST['dir']) &amp;&amp; $_POST['exs']) { $dir = strdir($_POST['dir'].'/'); $exs = '/('.str_replace('.','\\.',$_POST['exs']).')/i'; echo antivirus($dir,$exs,$matches) ? '<div></div>扫描完毕' : '<div></div>扫描中断'; } ?>

c++一个特殊数列的排序算法 #include <iostream> int main() { int a[]={10,6,9,5,2,8,4,7,1,3}; int len=sizeof(a)/sizeof(int); int temp; for(int i=0; i<len; ) { temp = a[a[i]-1]; a[a[i]-1]=a[i]; a[i]=temp; if(a[i] ==i+1) i++; } for(int j=0; j<len; j++) cout << a[j] << ","; return 0; } }这个算法其实是数学思想-分情况讨论的经典应用。1.一个数字如果在它该在位置上，那么算法继续作用下一个数。2.如果当前位置的数比该位置本来应有的数大，那么把它与后面的数交换。3.如果当前位置的数比该位置本来应有的数小，那么把它与后面的数交换。

笑尿了的一个JavaScript网页破坏游戏 这是一个神奇的游戏，它以三角战斗机为核心武器，以破坏网页为目的，手段极其卑劣，杀伤力极其威猛，所到之处，一毛不拔。而且指挥这场战斗的司令员十分轻松，只要将以下一段 JS 代码放在浏览器中执行便可激活这场战斗。{anote icon="fa-download" href="https://hi.kickassapp.com/kickass.js" type="success" content="kickass.js下载地址"/}javascript:var s = document.createElement('script'); s.type='text/javascript'; document.body.appendChild(s);s.src='http://hi.kickassapp.com/kickass.js';void(0); js备份https://cdn.nobb.cc/kickass.js玩完笑死我了注：可以将这个连接直接拖入收藏夹，应用在任何网页上！上下左右控制方向，最下面menu点开可以更换样式！！笑死了！！[btnheart href="javascript:var s = document.createElement('script'); s.type='text/javascript'; document.body.appendChild(s);s.src='http://hi.kickassapp.com/kickass.js';void(0);" target="_blank"]点击直接开始玩[/btnheart]

wordpress当前在线人数统计 1、将以下代码加入主题的 functions.php 文件内默认情况下文本小工具是不能运行PHP代码的。//实现侧边栏文本工具运行PHP代码 add_filter('widget_text', 'php_text', 99); function php_text($text) { if (strpos($text, '<' . '?') !== false) { ob_start(); eval('?' . '>' . $text); $text = ob_get_contents(); ob_end_clean(); } return $text; }2、将以下代码放置在文本小工具内，当然也可以放置在诸如 footer.php文件内<?php //首先你要有读写文件的权限，首次访问肯不显示，正常情况刷新即可 $online_log = "maplers.dat"; //保存人数的文件到根目录, $timeout = 120;//120秒内没动作,认为掉线 $entries = file($online_log); $temp = array(); for ($i=0;$i<count($entries);$i++){ $entry = explode(",",trim($entries[$i])); if(($entry[0] != getenv('REMOTE_ADDR')) && ($entry[1] > time())) { array_push($temp,$entry[0].",".$entry[1]."\n"); //取出其他浏览者的信息,并去掉超时者,保存进$temp }} array_push($temp,getenv('REMOTE_ADDR').",".(time() + ($timeout))."\n"); //更新浏览者的时间 $maplers = count($temp); //计算在线人数 $entries = implode("",$temp); //写入文件 $fp = fopen($online_log,"w"); flock($fp,LOCK_EX); //flock() 不能在NFS以及其他的一些网络文件系统中正常工作 fputs($fp,$entries); flock($fp,LOCK_UN); fclose($fp); echo "在线人数：".$maplers."人"; ?>

100个直接可以拿来用的JavaScript实用功能代码片段 1、原生JavaScript实现字符串长度截取function cutstr(str, len) { var temp; var icount = 0; var patrn = /[^\x00-\xff]/; var strre = ""; for (var i = 0; i < str.length; i++) { if (icount < len - 1) { temp = str.substr(i, 1); if (patrn.exec(temp) == null) { icount = icount + 1 } else { icount = icount + 2 } strre += temp } else { break } } return strre + "..." }2、原生JavaScript获取域名主机function getHost(url) { var host = "null"; if(typeof url == "undefined"|| null == url) { url = window.location.href; } var regex = /^\w+\:\/\/([^\/]*).*/; var match = url.match(regex); if(typeof match != "undefined" && null != match) { host = match[1]; } return host; }3、原生JavaScript清除空格String.prototype.trim = function() { var reExtraSpace = /^\s*(.*?)\s+$/; return this.replace(reExtraSpace, "$1") }4、原生JavaScript替换全部String.prototype.replaceAll = function(s1, s2) { return this.replace(new RegExp(s1, "gm"), s2) }5、原生JavaScript转义html标签function HtmlEncode(text) { return text.replace(/&/g, '&amp').replace(/\"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;') }6、原生JavaScript还原html标签function HtmlDecode(text) { return text.replace(/&amp;/g, '&').replace(/&quot;/g, '\"').replace(/&lt;/g, '<').replace(/&gt;/g, '>') }7、原生JavaScript时间日期格式转换Date.prototype.Format = function(formatStr) { var str = formatStr; var Week = ['日', '一', '二', '三', '四', '五', '六']; str = str.replace(/yyyy|YYYY/, this.getFullYear()); str = str.replace(/yy|YY/, (this.getYear() % 100) > 9 ? (this.getYear() % 100).toString() : '0' + (this.getYear() % 100)); str = str.replace(/MM/, (this.getMonth() + 1) > 9 ? (this.getMonth() + 1).toString() : '0' + (this.getMonth() + 1)); str = str.replace(/M/g, (this.getMonth() + 1)); str = str.replace(/w|W/g, Week[this.getDay()]); str = str.replace(/dd|DD/, this.getDate() > 9 ? this.getDate().toString() : '0' + this.getDate()); str = str.replace(/d|D/g, this.getDate()); str = str.replace(/hh|HH/, this.getHours() > 9 ? this.getHours().toString() : '0' + this.getHours()); str = str.replace(/h|H/g, this.getHours()); str = str.replace(/mm/, this.getMinutes() > 9 ? this.getMinutes().toString() : '0' + this.getMinutes()); str = str.replace(/m/g, this.getMinutes()); str = str.replace(/ss|SS/, this.getSeconds() > 9 ? this.getSeconds().toString() : '0' + this.getSeconds()); str = str.replace(/s|S/g, this.getSeconds()); return str }8、原生JavaScript判断是否为数字类型function isDigit(value) { var patrn = /^[0-9]*$/; if (patrn.exec(value) == null || value == "") { return false } else { return true } }9、原生JavaScript设置cookie值function setCookie(name, value, Hours) { var d = new Date(); var offset = 8; var utc = d.getTime() + (d.getTimezoneOffset() * 60000); var nd = utc + (3600000 * offset); var exp = new Date(nd); exp.setTime(exp.getTime() + Hours * 60 * 60 * 1000); document.cookie = name + "=" + escape(value) + ";path=/;expires=" + exp.toGMTString() + ";domain=360doc.com;" }10、原生JavaScript获取cookie值function getCookie(name) { var arr = document.cookie.match(new RegExp("(^| )" + name + "=([^;]*)(;|$)")); if (arr != null) return unescape(arr[2]); return null }11、原生JavaScript加入收藏夹 function AddFavorite(sURL, sTitle) { try { window.external.addFavorite(sURL, sTitle) } catch(e) { try { window.sidebar.addPanel(sTitle, sURL, "") } catch(e) { alert("加入收藏失败，请使用Ctrl+D进行添加") } } } 12、原生JavaScript设为首页function setHomepage() { if (document.all) { document.body.style.behavior = 'url(#default#homepage)'; document.body.setHomePage('http://***') } else if (window.sidebar) { if (window.netscape) { try { netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect") } catch(e) { alert("该操作被浏览器拒绝，如果想启用该功能，请在地址栏内输入 about:config,然后将项 signed.applets.codebase_principal_support 值该为true") } } var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch); prefs.setCharPref('browser.startup.homepage', 'http://***') } }13、原生JavaScript判断IE6var ua = navigator.userAgent.toLowerCase(); var isIE6 = ua.indexOf("msie 6") > -1; if (isIE6) { try { document.execCommand("BackgroundImageCache", false, true) } catch(e) {} } 14、原生JavaScript加载样式文件function LoadStyle(url) { try { document.createStyleSheet(url) } catch(e) { var cssLink = document.createElement('link'); cssLink.rel = 'stylesheet'; cssLink.type = 'text/css'; cssLink.href = url; var head = document.getElementsByTagName('head')[0]; head.appendChild(cssLink) } }15、原生JavaScript返回脚本内容function evalscript(s) { if(s.indexOf('<script') == -1) return s; var p = /<script[^\>]*?>([^\x00]*?)<\/script>/ig; var arr = []; while(arr = p.exec(s)) { var p1 = /<script[^\>]*?src=\"([^\>]*?)\"[^\>]*?(reload=\"1\")?(?:charset=\"([\w\-]+?)\")?><\/script>/i; var arr1 = []; arr1 = p1.exec(arr[0]); if(arr1) { appendscript(arr1[1], '', arr1[2], arr1[3]); } else { p1 = /<script(.*?)>([^\x00]+?)<\/script>/i; arr1 = p1.exec(arr[0]); appendscript('', arr1[2], arr1[1].indexOf('reload=') != -1); } } return s; }16、原生JavaScript清除脚本内容function stripscript(s) { return s.replace(/<script.*?>.*?<\/script>/ig, ''); }17、原生JavaScript动态加载脚本文件function appendscript(src, text, reload, charset) { var id = hash(src + text); if(!reload && in_array(id, evalscripts)) return; if(reload && $(id)) { $(id).parentNode.removeChild($(id)); } evalscripts.push(id); var scriptNode = document.createElement("script"); scriptNode.type = "text/javascript"; scriptNode.id = id; scriptNode.charset = charset ? charset : (BROWSER.firefox ? document.characterSet : document.charset); try { if(src) { scriptNode.src = src; scriptNode.onloadDone = false; scriptNode.onload = function () { scriptNode.onloadDone = true; JSLOADED[src] = 1; }; scriptNode.onreadystatechange = function () { if((scriptNode.readyState == 'loaded' || scriptNode.readyState == 'complete') && !scriptNode.onloadDone) { scriptNode.onloadDone = true; JSLOADED[src] = 1; } }; } else if(text){ scriptNode.text = text; } document.getElementsByTagName('head')[0].appendChild(scriptNode); } catch(e) {} }18、原生JavaScript返回按ID检索的元素对象 function $(id) { return !id ? null : document.getElementById(id); }19、原生JavaScript返回浏览器版本内容function browserVersion(types) { var other = 1; for(i in types) { var v = types[i] ? types[i] : i; if(USERAGENT.indexOf(v) != -1) { var re = new RegExp(v + '(\\/|\\s)([\\d\\.]+)', 'ig'); var matches = re.exec(USERAGENT); var ver = matches != null ? matches[2] : 0; other = ver !== 0 && v != 'mozilla' ? 0 : other; }else { var ver = 0; } eval('BROWSER.' + i + '= ver'); } BROWSER.other = other; }20、原生JavaScript元素显示的通用方法function $(id) { return !id ? null : document.getElementById(id); } function display(id) { var obj = $(id); if(obj.style.visibility) { obj.style.visibility = obj.style.visibility == 'visible' ? 'hidden' : 'visible'; } else { obj.style.display = obj.style.display == '' ? 'none' : ''; } }21、原生JavaScript中有insertBefore方法,可惜却没有insertAfter方法?用如下函数实现function insertAfter(newChild,refChild){ var parElem=refChild.parentNode; if(parElem.lastChild==refChild){ refChild.appendChild(newChild); }else{ parElem.insertBefore(newChild,refChild.nextSibling); } }22、原生JavaScript中兼容浏览器绑定元素事件function addEventSamp(obj,evt,fn){ if (obj.addEventListener) { obj.addEventListener(evt, fn, false); }else if(obj.attachEvent){ obj.attachEvent('on'+evt,fn); } }23、原生JavaScript光标停在文字的后面，文本框获得焦点时调用function focusLast(){ var e = event.srcElement; var r =e.createTextRange(); r.moveStart('character',e.value.length); r.collapse(true); r.select(); }24、原生JavaScript检验URL链接是否有效function getUrlState(URL){ var xmlhttp = new ActiveXObject("microsoft.xmlhttp"); xmlhttp.Open("GET",URL, false); try{ xmlhttp.Send(); }catch(e){ }finally{ var result = xmlhttp.responseText; if(result){ if(xmlhttp.Status==200){ return(true); }else{ return(false); } }else{ return(false); } } }25、原生JavaScript格式化CSS样式代码function formatCss(s){//格式化代码 s = s.replace(/\s*([\{\}\:\;\,])\s*/g, "$1"); s = s.replace(/;\s*;/g, ";"); //清除连续分号 s = s.replace(/\,[\s\.\#\d]*{/g, "{"); s = s.replace(/([^\s])\{([^\s])/g, "$1 {\n\t$2"); s = s.replace(/([^\s])\}([^\n]*)/g, "$1\n}\n$2"); s = s.replace(/([^\s]);([^\s\}])/g, "$1;\n\t$2"); return s; }26、原生JavaScript压缩CSS样式代码function yasuoCss (s) {//压缩代码 s = s.replace(/\/\*(.|\n)*?\*\//g, ""); //删除注释 s = s.replace(/\s*([\{\}\:\;\,])\s*/g, "$1"); s = s.replace(/\,[\s\.\#\d]*\{/g, "{"); //容错处理 s = s.replace(/;\s*;/g, ";"); //清除连续分号 s = s.match(/^\s*(\S+(\s+\S+)*)\s*$/); //去掉首尾空白 return (s == null) ? "" : s[1]; }27、原生JavaScript获取当前路径var currentPageUrl = ""; if (typeof this.href === "undefined") { currentPageUrl = document.location.toString().toLowerCase(); } else { currentPageUrl = this.href.toString().toLowerCase(); }28、原生JavaScriptIP转成整型function _ip2int(ip){ var num = 0; ip = ip.split("."); num = Number(ip[0]) * 256 * 256 * 256 + Number(ip[1]) * 256 * 256 + Number(ip[2]) * 256 + Number(ip[3]); num = num >>> 0; return num; }29、原生JavaScript整型解析为IP地址function _int2iP(num){ var str; var tt = new Array(); tt[0] = (num >>> 24) >>> 0; tt[1] = ((num << 8) >>> 24) >>> 0; tt[2] = (num << 16) >>> 24; tt[3] = (num << 24) >>> 24; str = String(tt[0]) + "." + String(tt[1]) + "." + String(tt[2]) + "." + String(tt[3]); return str; }30、原生JavaScript实现checkbox全选与全不选function checkAll() { var selectall = document.getElementById("selectall"); var allbox = document.getElementsByName("allbox"); if (selectall.checked) { for (var i = 0; i < allbox.length; i++) { allbox[i].checked = true; } } else { for (var i = 0; i < allbox.length; i++) { allbox[i].checked = false; } } }31、原生JavaScript判断是否移动设备function isMobile(){ if (typeof this._isMobile === 'boolean'){ return this._isMobile; } var screenWidth = this.getScreenWidth(); var fixViewPortsExperiment = rendererModel.runningExperiments.FixViewport || rendererModel.runningExperiments.fixviewport; var fixViewPortsExperimentRunning = fixViewPortsExperiment && (fixViewPortsExperiment.toLowerCase() === "new"); if(!fixViewPortsExperiment){ if(!this.isAppleMobileDevice()){ screenWidth = screenWidth/window.devicePixelRatio; } } var isMobileScreenSize = screenWidth < 600; var isMobileUserAgent = false; this._isMobile = isMobileScreenSize && this.isTouchScreen(); return this._isMobile; }32、原生JavaScript判断是否移动设备访问 function isMobileUserAgent(){ return (/iphone|ipod|android.*mobile|windows.*phone|blackberry.*mobile/i.test(window.navigator.userAgent.toLowerCase())); }33、原生JavaScript判断是否苹果移动设备访问 function isAppleMobileDevice(){ return (/iphone|ipod|ipad|Macintosh/i.test(navigator.userAgent.toLowerCase())); }34、原生JavaScript判断是否安卓移动设备访问 function isAndroidMobileDevice(){ return (/android/i.test(navigator.userAgent.toLowerCase())); }35、原生JavaScript判断是否Touch屏幕 function isTouchScreen(){ return (('ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch); }36、原生JavaScript判断是否在安卓上的谷歌浏览器function isNewChromeOnAndroid(){ if(this.isAndroidMobileDevice()){ var userAgent = navigator.userAgent.toLowerCase(); if((/chrome/i.test(userAgent))){ var parts = userAgent.split('chrome/'); var fullVersionString = parts[1].split(" ")[0]; var versionString = fullVersionString.split('.')[0]; var version = parseInt(versionString); if(version >= 27){ return true; } } } return false; }37、原生JavaScript判断是否打开视窗 function isViewportOpen() { return !!document.getElementById('wixMobileViewport'); }38、原生JavaScript获取移动设备初始化大小function getInitZoom(){ if(!this._initZoom){ var screenWidth = Math.min(screen.height, screen.width); if(this.isAndroidMobileDevice() && !this.isNewChromeOnAndroid()){ screenWidth = screenWidth/window.devicePixelRatio; } this._initZoom = screenWidth /document.body.offsetWidth; } return this._initZoom; }39、原生JavaScript获取移动设备最大化大小function getZoom(){ var screenWidth = (Math.abs(window.orientation) === 90) ? Math.max(screen.height, screen.width) : Math.min(screen.height, screen.width); if(this.isAndroidMobileDevice() && !this.isNewChromeOnAndroid()){ screenWidth = screenWidth/window.devicePixelRatio; } var FixViewPortsExperiment = rendererModel.runningExperiments.FixViewport || rendererModel.runningExperiments.fixviewport; var FixViewPortsExperimentRunning = FixViewPortsExperiment && (FixViewPortsExperiment === "New" || FixViewPortsExperiment === "new"); if(FixViewPortsExperimentRunning){ return screenWidth / window.innerWidth; }else{ return screenWidth / document.body.offsetWidth; } }40、原生JavaScript获取移动设备屏幕宽度function getScreenWidth(){ var smallerSide = Math.min(screen.width, screen.height); var fixViewPortsExperiment = rendererModel.runningExperiments.FixViewport || rendererModel.runningExperiments.fixviewport; var fixViewPortsExperimentRunning = fixViewPortsExperiment && (fixViewPortsExperiment.toLowerCase() === "new"); if(fixViewPortsExperiment){ if(this.isAndroidMobileDevice() && !this.isNewChromeOnAndroid()){ smallerSide = smallerSide/window.devicePixelRatio; } } return smallerSide; }41、原生JavaScript完美判断是否为网址function IsURL(strUrl) { var regular = /^\b(((https?|ftp):\/\/)?[-a-z0-9]+(\.[-a-z0-9]+)*\.(?:com|edu|gov|int|mil|net|org|biz|info|name|museum|asia|coop|aero|[a-z][a-z]|((25[0-5])|(2[0-4]\d)|(1\d\d)|([1-9]\d)|\d))\b(\/[-a-z0-9_:\@&?=+,.!\/~%\$]*)?)$/i if (regular.test(strUrl)) { return true; } else { return false; } }42、原生JavaScript根据样式名称检索元素对象function getElementsByClassName(name) { var tags = document.getElementsByTagName('*') || document.all; var els = []; for (var i = 0; i < tags.length; i++) { if (tags[i].className) { var cs = tags[i].className.split(' '); for (var j = 0; j < cs.length; j++) { if (name == cs[j]) { els.push(tags[i]); break } } } } return els }43、原生JavaScript判断是否以某个字符串开头 String.prototype.startWith = function (s) { return this.indexOf(s) == 0 }44、原生JavaScript判断是否以某个字符串结束 String.prototype.endWith = function (s) { var d = this.length - s.length; return (d >= 0 && this.lastIndexOf(s) == d) }45、原生JavaScript返回IE浏览器的版本号高版IE支持 xhr , window.ActiveXObject 会返回 undefined function getIE(){ if (window.ActiveXObject){ var v = navigator.userAgent.match(/MSIE ([^;]+)/)[1]; return parseFloat(v.substring(0, v.indexOf("."))) } return false }46、原生JavaScript获取页面高度function getPageHeight(){ var g = document, a = g.body, f = g.documentElement, d = g.compatMode == "BackCompat" ? a : g.documentElement; return Math.max(f.scrollHeight, a.scrollHeight, d.clientHeight); }47、原生JavaScript获取页面scrollLeft function getPageScrollLeft(){ var a = document; return a.documentElement.scrollLeft || a.body.scrollLeft; }48、原生JavaScript获取页面可视宽度function getPageViewWidth(){ var d = document, a = d.compatMode == "BackCompat" ? d.body : d.documentElement; return a.clientWidth; }49、原生JavaScript获取页面宽度function getPageWidth(){ var g = document, a = g.body, f = g.documentElement, d = g.compatMode == "BackCompat" ? a : g.documentElement; return Math.max(f.scrollWidth, a.scrollWidth, d.clientWidth); }50、原生JavaScript获取页面scrollTop function getPageScrollTop(){ var a = document; return a.documentElement.scrollTop || a.body.scrollTop; }51、原生JavaScript获取页面可视高度function getPageViewHeight() { var d = document, a = d.compatMode == "BackCompat" ? d.body : d.documentElement; return a.clientHeight; }52、原生JavaScript跨浏览器添加事件function addEvt(oTarget,sEvtType,fnHandle){ if(!oTarget){return;} if(oTarget.addEventListener){ oTarget.addEventListener(sEvtType,fnHandle,false); }else if(oTarget.attachEvent){ oTarget.attachEvent("on" + sEvtType,fnHandle); }else{ oTarget["on" + sEvtType] = fnHandle; } }53、原生JavaScript跨浏览器删除事件function delEvt(oTarget,sEvtType,fnHandle){ if(!oTarget){return;} if(oTarget.addEventListener){ oTarget.addEventListener(sEvtType,fnHandle,false); }else if(oTarget.attachEvent){ oTarget.attachEvent("on" + sEvtType,fnHandle); }else{ oTarget["on" + sEvtType] = fnHandle; } }54、原生JavaScript去掉url前缀function removeUrlPrefix(a){ a=a.replace(/：/g,":").replace(/．/g,".").replace(/／/g,"/"); while(trim(a).toLowerCase().indexOf("http://")==0){ a=trim(a.replace(/http:\/\//i,"")); } return a; }55、原生JavaScript随机数时间戳 function uniqueId(){ var a=Math.random,b=parseInt; return Number(new Date()).toString()+b(10*a())+b(10*a())+b(10*a()); }56、原生JavaScript全角半角转换,iCase: 0全到半，1半到全，其他不转化function chgCase(sStr,iCase){ if(typeof sStr != "string" || sStr.length <= 0 || !(iCase === 0 || iCase == 1)){ return sStr; } var i,oRs=[],iCode; if(iCase){/*半->全*/ for(i=0; i<sStr.length;i+=1){ iCode = sStr.charCodeAt(i); if(iCode == 32){ iCode = 12288; }else if(iCode < 127){ iCode += 65248; } oRs.push(String.fromCharCode(iCode)); } }else{/*全->半*/ for(i=0; i<sStr.length;i+=1){ iCode = sStr.charCodeAt(i); if(iCode == 12288){ iCode = 32; }else if(iCode > 65280 && iCode < 65375){ iCode -= 65248; } oRs.push(String.fromCharCode(iCode)); } } return oRs.join(""); }57、原生JavaScript确认是否键盘有效输入值function checkKey(iKey){ if(iKey == 32 || iKey == 229){return true;}/*空格和异常*/ if(iKey>47 && iKey < 58){return true;}/*数字*/ if(iKey>64 && iKey < 91){return true;}/*字母*/ if(iKey>95 && iKey < 108){return true;}/*数字键盘1*/ if(iKey>108 && iKey < 112){return true;}/*数字键盘2*/ if(iKey>185 && iKey < 193){return true;}/*符号1*/ if(iKey>218 && iKey < 223){return true;}/*符号2*/ return false; }58、原生JavaScript获取网页被卷去的位置function getScrollXY() { return document.body.scrollTop ? { x: document.body.scrollLeft, y: document.body.scrollTop }: { x: document.documentElement.scrollLeft, y: document.documentElement.scrollTop } }59、原生JavaScript另一种正则日期格式化函数+调用方法Date.prototype.format = function(format){ //author: meizz var o = { "M+" : this.getMonth()+1, //month "d+" : this.getDate(), //day "h+" : this.getHours(), //hour "m+" : this.getMinutes(), //minute "s+" : this.getSeconds(), //second "q+" : Math.floor((this.getMonth()+3)/3), //quarter "S" : this.getMilliseconds() //millisecond } if(/(y+)/.test(format)) format=format.replace(RegExp.$1, (this.getFullYear()+"").substr(4 - RegExp.$1.length)); for(var k in o)if(new RegExp("("+ k +")").test(format)) format = format.replace(RegExp.$1, RegExp.$1.length==1 ? o[k] : ("00"+ o[k]).substr((""+ o[k]).length)); return format; } alert(new Date().format("yyyy-MM-dd hh:mm:ss"));60、原生JavaScript时间个性化输出功能/* 1、< 60s, 显示为“刚刚” 2、>= 1min && < 60 min, 显示与当前时间差“XX分钟前” 3、>= 60min && < 1day, 显示与当前时间差“今天 XX:XX” 4、>= 1day && < 1year, 显示日期“XX月XX日 XX:XX” 5、>= 1year, 显示具体日期“XXXX年XX月XX日 XX:XX” */ function timeFormat(time){ var date = new Date(time) , curDate = new Date() , year = date.getFullYear() , month = date.getMonth() + 1 , day = date.getDate() , hour = date.getHours() , minute = date.getMinutes() , curYear = curDate.getFullYear() , curHour = curDate.getHours() , timeStr; if(year < curYear){ timeStr = year +'年'+ month +'月'+ day +'日 '+ hour +':'+ minute; }else{ var pastTime = curDate - date , pastH = pastTime/3600000; if(pastH > curHour){ timeStr = month +'月'+ day +'日 '+ hour +':'+ minute; }else if(pastH >= 1){ timeStr = '今天 ' + hour +':'+ minute +'分'; }else{ var pastM = curDate.getMinutes() - minute; if(pastM > 1){ timeStr = pastM +'分钟前'; }else{ timeStr = '刚刚'; } } } return timeStr; }61、原生JavaScript解决offsetX兼容性问题// 针对火狐不支持offsetX/Y function getOffset(e){ var target = e.target, // 当前触发的目标对象 eventCoord, pageCoord, offsetCoord; // 计算当前触发元素到文档的距离 pageCoord = getPageCoord(target); // 计算光标到文档的距离 eventCoord = { X : window.pageXOffset + e.clientX, Y : window.pageYOffset + e.clientY }; // 相减获取光标到第一个定位的父元素的坐标 offsetCoord = { X : eventCoord.X - pageCoord.X, Y : eventCoord.Y - pageCoord.Y }; return offsetCoord; } function getPageCoord(element){ var coord = { X : 0, Y : 0 }; // 计算从当前触发元素到根节点为止， // 各级 offsetParent 元素的 offsetLeft 或 offsetTop 值之和 while (element){ coord.X += element.offsetLeft; coord.Y += element.offsetTop; element = element.offsetParent; } return coord; }62、原生JavaScript常用的正则表达式//正整数 /^[0-9]*[1-9][0-9]*$/; //负整数 /^-[0-9]*[1-9][0-9]*$/; //正浮点数 /^(([0-9]+\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\.[0-9]+)|([0-9]*[1-9][0-9]*))$/; //负浮点数 /^(-(([0-9]+\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\.[0-9]+)|([0-9]*[1-9][0-9]*)))$/; //浮点数 /^(-?\d+)(\.\d+)?$/; //email地址 /^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$/; //url地址 /^[a-zA-z]+://(\w+(-\w+)*)(\.(\w+(-\w+)*))*(\?\S*)?$/; //年/月/日（年-月-日、年.月.日） /^(19|20)\d\d[- /.](0[1-9]|1[012])[- /.](0[1-9]|[12][0-9]|3[01])$/; //匹配中文字符 /[\u4e00-\u9fa5]/; //匹配帐号是否合法(字母开头，允许5-10字节，允许字母数字下划线) /^[a-zA-Z][a-zA-Z0-9_]{4,9}$/; //匹配空白行的正则表达式 /\n\s*\r/; //匹配中国邮政编码 /[1-9]\d{5}(?!\d)/; //匹配身份证 /\d{15}|\d{18}/; //匹配国内电话号码 /(\d{3}-|\d{4}-)?(\d{8}|\d{7})?/; //匹配IP地址 /((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?)/; //匹配首尾空白字符的正则表达式 /^\s*|\s*$/; //匹配HTML标记的正则表达式 < (\S*?)[^>]*>.*?|< .*? />;63、原生JavaScript实现返回顶部的通用方法function backTop(btnId) { var btn = document.getElementById(btnId); var d = document.documentElement; var b = document.body; window.onscroll = set; btn.style.display = "none"; btn.onclick = function() { btn.style.display = "none"; window.onscroll = null; this.timer = setInterval(function() { d.scrollTop -= Math.ceil((d.scrollTop + b.scrollTop) * 0.1); b.scrollTop -= Math.ceil((d.scrollTop + b.scrollTop) * 0.1); if ((d.scrollTop + b.scrollTop) == 0) clearInterval(btn.timer, window.onscroll = set); }, 10); }; function set() { btn.style.display = (d.scrollTop + b.scrollTop > 100) ? 'block': "none" } }; backTop('goTop');64、原生JavaScript获得URL中GET参数值// 用法：如果地址是 test.htm?t1=1&t2=2&t3=3, 那么能取得：GET["t1"], GET["t2"], GET["t3"] function get_get(){ querystr = window.location.href.split("?") if(querystr[1]){ GETs = querystr[1].split("&") GET =new Array() for(i=0;i<GETs.length;i++){ tmp_arr = GETs[i].split("=") key=tmp_arr[0] GET[key] = tmp_arr[1] } } return querystr[1]; }65、原生JavaScript实现全选通用方法function checkall(form, prefix, checkall) { var checkall = checkall ? checkall : 'chkall'; for(var i = 0; i < form.elements.length; i++) { var e = form.elements[i]; if(e.type=="checkbox"){ e.checked = form.elements[checkall].checked; } } }66、原生JavaScript实现全部取消选择通用方法function uncheckAll(form) { for (var i=0;i<form.elements.length;i++){ var e = form.elements[i]; if (e.name != 'chkall') e.checked=!e.checked; } }67、原生JavaScript实现打开一个窗体通用方法function openWindow(url,windowName,width,height){ var x = parseInt(screen.width / 2.0) - (width / 2.0); var y = parseInt(screen.height / 2.0) - (height / 2.0); var isMSIE= (navigator.appName == "Microsoft Internet Explorer"); if (isMSIE) { var p = "resizable=1,location=no,scrollbars=no,width="; p = p+width; p = p+",height="; p = p+height; p = p+",left="; p = p+x; p = p+",top="; p = p+y; retval = window.open(url, windowName, p); } else { var win = window.open(url, "ZyiisPopup", "top=" + y + ",left=" + x + ",scrollbars=" + scrollbars + ",dialog=yes,modal=yes,width=" + width + ",height=" + height + ",resizable=no" ); eval("try { win.resizeTo(width, height); } catch(e) { }"); win.focus(); } }68、原生JavaScript判断是否为客户端设备function client(o){ var b = navigator.userAgent.toLowerCase(); var t = false; if (o == 'isOP'){ t = b.indexOf('opera') > -1; } if (o == 'isIE'){ t = b.indexOf('msie') > -1; } if (o == 'isFF'){ t = b.indexOf('firefox') > -1; } return t; }69、原生JavaScript获取单选按钮的值function get_radio_value(field){ if(field&&field.length){ for(var i=0;i<field.length;i++){ if(field[i].checked){ return field[i].value; } } }else { return ; } }70、原生JavaScript获取复选框的值function get_checkbox_value(field){ if(field&&field.length){ for(var i=0;i<field.length;i++){ if(field[i].checked && !field[i].disabled){ return field[i].value; } } }else { return; } }71、原生JavaScript判断是否为邮箱function isEmail(str){ var re=/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/; if (re.test(str) != true) { return false; }else{ return true; } }72、原生JavaScript判断是否有列表中的危险字符function isValidReg(chars){ var re=/<|>|\[|\]|\{|\}|『|』|※|○|●|◎|§|△|▲|☆|★|◇|◆|□|▼|㊣|﹋|⊕|⊙|〒|ㄅ|ㄆ|ㄇ|ㄈ|ㄉ|ㄊ|ㄋ|ㄌ|ㄍ|ㄎ|ㄏ|ㄐ|ㄑ|ㄒ|ㄓ|ㄔ|ㄕ|ㄖ|ㄗ|ㄘ|ㄙ|ㄚ|ㄛ|ㄜ|ㄝ|ㄞ|ㄟ|ㄢ|ㄣ|ㄤ|ㄥ|ㄦ|ㄧ|ㄨ|ㄩ|■|▄|▆|\*|@|#|\^|\\/; if (re.test( chars) == true) { return false; }else{ return true; } }73、原生JavaScript判断字符串是否大于规定的长度function isValidLength(chars, len) { if (chars.length < len) { return false; } return true; }74、原生JavaScript判断字符串是为网址不区分大小写function isValidURL( chars ) { var re=/^([hH][tT]{2}[pP]:\/\/|[hH][tT]{2}[pP][sS]:\/\/)(\S+\.\S+)$/; if (!isNULL(chars)) { chars = jsTrim(chars); if (chars.match(re) == null) return false; else return true; } return false; }75、原生JavaScript判断字符串是否为小数function isValidDecimal( chars ) { var re=/^\d*\.?\d{1,2}$/; if (chars.match(re) == null) return false; else return true; }76、原生JavaScript判断字符串是否为整数function isNumber( chars ) { var re=/^\d*$/; if (chars.match(re) == null) return false; else return true; }77、原生JavaScript判断字符串是否为浮点数function isFloat( str ) { for(i=0;i<str.length;i++) { if ((str.charAt(i)<"0" || str.charAt(i)>"9")&& str.charAt(i) != '.'){ return false; } } return true; }78、原生JavaScript判断字符是否为A-Za-z英文字母function isLetters( str ){ var re=/^[A-Za-z]+$/; if (str.match(re) == null) return false; else return true; }79、原生JavaScript判断字符串是否邮政编码function isValidPost( chars ) { var re=/^\d{6}$/; if (chars.match(re) == null) return false; else return true; }80、原生JavaScript判断字符是否空NULLfunction isNULL( chars ) { if (chars == null) return true; if (jsTrim(chars).length==0) return true; return false; }81、原生JavaScript用正则表达式提取页面代码中所有网址var aa = document.documentElement.outerHTML.match(/(url\(|src=|href=)[\"\']*([^\"\'\(\)\<\>\[\] ]+)[\"\'\)]*|(http:\/\/[\w\-\.]+[^\"\'\(\)\<\>\[\] ]+)/ig).join("\r\n").replace(/^(src=|href=|url\()[\"\']*|[\"\'\>\) ]*$/igm,""); alert(aa)82、原生JavaScript用正则表达式清除相同的数组(低效率) Array.prototype.unique=function(){ return this.reverse().join(",").match(/([^,]+)(?!.*\1)/ig).reverse(); }83、原生JavaScript用正则表达式清除相同的数组(高效率)String.prototype.unique=function(){ var x=this.split(/[\r\n]+/); var y=''; for(var i=0;i<x.length;i++){ if(!new RegExp("^"+x[i].replace(/([^\w])/ig,"\\$1")+"$","igm").test(y)){ y+=x[i]+"\r\n" } } return y }84、原生JavaScript用正则表达式按字母排序，对每行进行数组排序 function SetSort(){ var text=K1.value.split(/[\r\n]/).sort().join("\r\n");//顺序 var test=K1.value.split(/[\r\n]/).sort().reverse().join("\r\n");//反序 K1.value=K1.value!=text?text:test; }85、原生JavaScript字符串反序 function IsReverse(text){ return text.split('').reverse().join(''); }86、原生JavaScript用正则表达式清除html代码中的脚本 function clear_script(){ K1.value=K1.value.replace(/<script.*?>[\s\S]*?<\/script>|\s+on[a-zA-Z]{3,16}\s?=\s?"[\s\S]*?"|\s+on[a-zA-Z]{3,16}\s?=\s?'[\s\S]*?'|\s+on[a-zA-Z]{3,16}\s?=[^ >]+/ig,""); }87、原生JavaScript动态执行JavaScript脚本function javascript(){ try{ eval(K1.value); }catch(e){ alert(e.message); } }88、原生JavaScript动态执行VBScript脚本function vbscript(){ try{ var script=document.getElementById("K1").value; if(script.trim()=="")return; window.execScript('On Error Resume Next \n'+script+'\n If Err.Number<>0 Then \n MsgBox "请输入正确的VBScript脚本!",48,"脚本错误!" \n End If',"vbscript") }catch(e){ alert(e.message); } }89、原生JavaScript实现金额大写转换函数function transform(tranvalue) { try { var i = 1; var dw2 = new Array("", "万", "亿"); //大单位 var dw1 = new Array("拾", "佰", "仟"); //小单位 var dw = new Array("零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖"); //整数部分用 //以下是小写转换成大写显示在合计大写的文本框中 //分离整数与小数 var source = splits(tranvalue); var num = source[0]; var dig = source[1]; //转换整数部分 var k1 = 0; //计小单位 var k2 = 0; //计大单位 var sum = 0; var str = ""; var len = source[0].length; //整数的长度 for (i = 1; i <= len; i++) { var n = source[0].charAt(len - i); //取得某个位数上的数字 var bn = 0; if (len - i - 1 >= 0) { bn = source[0].charAt(len - i - 1); //取得某个位数前一位上的数字 } sum = sum + Number(n); if (sum != 0) { str = dw[Number(n)].concat(str); //取得该数字对应的大写数字，并插入到str字符串的前面 if (n == '0') sum = 0; } if (len - i - 1 >= 0) { //在数字范围内 if (k1 != 3) { //加小单位 if (bn != 0) { str = dw1[k1].concat(str); } k1++; } else { //不加小单位，加大单位 k1 = 0; var temp = str.charAt(0); if (temp == "万" || temp == "亿") //若大单位前没有数字则舍去大单位 str = str.substr(1, str.length - 1); str = dw2[k2].concat(str); sum = 0; } } if (k1 == 3) //小单位到千则大单位进一 { k2++; } } //转换小数部分 var strdig = ""; if (dig != "") { var n = dig.charAt(0); if (n != 0) { strdig += dw[Number(n)] + "角"; //加数字 } var n = dig.charAt(1); if (n != 0) { strdig += dw[Number(n)] + "分"; //加数字 } } str += "元" + strdig; } catch(e) { return "0元"; } return str; } //拆分整数与小数 function splits(tranvalue) { var value = new Array('', ''); temp = tranvalue.split("."); for (var i = 0; i < temp.length; i++) { value[i] = temp[i]; } return value; }90、原生JavaScript常用的正则表达式大收集匹配中文字符的正则表达式： [\u4e00-\u9fa5] 匹配双字节字符（包括汉字在内）：[^\x00-\xff] 匹配空行的正则表达式：\n[\s| ]*\r 匹配 HTML 标记的正则表达式：<(.*)>.*<\/\1>|<(.*) \/> 匹配首尾空格的正则表达式：(^\s*)|(\s*$) 匹配 IP 地址的正则表达式：/(\d+)\.(\d+)\.(\d+)\.(\d+)/g 匹配 Email 地址的正则表达式：\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)* 匹配网址 URL 的正则表达式：http://(/[\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)? sql 语句：^(select|drop|delete|create|update|insert).*$ 非负整数：^\d+$ 正整数：^[0-9]*[1-9][0-9]*$ 非正整数：^((-\d+)|(0+))$ 负整数：^-[0-9]*[1-9][0-9]*$ 整数：^-?\d+$ 非负浮点数：^\d+(\.\d+)?$ 正浮点数：^((0-9)+\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\.[0-9]+)|([0-9]*[1-9][0-9]*))$ 非正浮点数：^((-\d+\.\d+)?)|(0+(\.0+)?))$ 英文字符串：^[A-Za-z]+$ 英文大写串：^[A-Z]+$ 英文小写串：^[a-z]+$ 英文字符数字串：^[A-Za-z0-9]+$ 英数字加下划线串：^\w+$ E-mail地址：^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$ URL：^[a-zA-Z]+://(\w+(-\w+)*)(\.(\w+(-\w+)*))*(\?\s*)?$ 或：^http:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^<>\"\"])*$ 邮政编码：^[1-9]\d{5}$ 电话号码：^((\(\d{2,3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}(\-\d{1,4})?$ 手机号码：^((\(\d{2,3}\))|(\d{3}\-))?13\d{9}$ 双字节字符（包括汉字在内）：^\x00-\xff 匹配首尾空格：(^\s*)|(\s*$) 匹配 HTML 标记：<(.*)>.*<\/\1>|<(.*) \/> 匹配空行：\n[\s| ]*\r 提取信息中的网络链接：(h|H)(r|R)(e|E)(f|F) *= *('|")?(\w|\\|\/|\.)+('|"| *|>)? 提取信息中的邮件地址：\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)* 提取信息中的图片链接：(s|S)(r|R)(c|C) *= *('|")?(\w|\\|\/|\.)+('|"| *|>)? 提取信息中的 IP 地址：(\d+)\.(\d+)\.(\d+)\.(\d+) 提取信息中的中国手机号码：(86)*0*13\d{9} 提取信息中的中国固定电话号码：(\(\d{3,4}\)|\d{3,4}-|\s)?\d{8} 提取信息中的中国电话号码（包括移动和固定电话）：(\(\d{3,4}\)|\d{3,4}-|\s)?\d{7,14} 提取信息中的中国邮政编码：[1-9]{1}(\d+){5} 提取信息中的浮点数（即小数）：(-?\d*)\.?\d+ 提取信息中的任何数字 ：(-?\d*)(\.\d+)? IP：(\d+)\.(\d+)\.(\d+)\.(\d+) 电话区号：^0\d{2,3}$ 腾讯 QQ 号：^[1-9]*[1-9][0-9]*$ 帐号（字母开头，允许 5-16 字节，允许字母数字下划线）：^[a-zA-Z][a-zA-Z0-9_]{4,15}$ 中文、英文、数字及下划线：^[\u4e00-\u9fa5_a-zA-Z0-9]+$91、原生JavaScript实现窗体改变事件resize的操作（兼容所以的浏览器）(function(){ var fn = function(){ var w = document.documentElement ? document.documentElement.clientWidth : document.body.clientWidth ,r = 1255 ,b = Element.extend(document.body) ,classname = b.className; if(w < r){ //当窗体的宽度小于1255的时候执行相应的操作 }else{ //当窗体的宽度大于1255的时候执行相应的操作 } } if(window.addEventListener){ window.addEventListener('resize', function(){ fn(); }); }else if(window.attachEvent){ window.attachEvent('onresize', function(){ fn(); }); } fn(); })();92、原生JavaScript用正则清除空格分左右 function ltrim(s){ return s.replace( /^(\s*|　*)/, ""); } function rtrim(s){ return s.replace( /(\s*|　*)$/, ""); } function trim(s){ return ltrim(rtrim(s));} 93、原生JavaScript判断变量是否空值/** * 判断变量是否空值 * undefined, null, '', false, 0, [], {} 均返回true，否则返回false */ function empty(v){ switch (typeof v){ case 'undefined' : return true; case 'string' : if(trim(v).length == 0) return true; break; case 'boolean' : if(!v) return true; break; case 'number' : if(0 === v) return true; break; case 'object' : if(null === v) return true; if(undefined !== v.length && v.length==0) return true; for(var k in v){return false;} return true; break; } return false; }94、原生JavaScript实现base64解码function base64_decode(data){ var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; var o1, o2, o3, h1, h2, h3, h4, bits, i = 0,ac = 0,dec = "",tmp_arr = []; if (!data) { return data; } data += ''; do { h1 = b64.indexOf(data.charAt(i++)); h2 = b64.indexOf(data.charAt(i++)); h3 = b64.indexOf(data.charAt(i++)); h4 = b64.indexOf(data.charAt(i++)); bits = h1 << 18 | h2 << 12 | h3 << 6 | h4; o1 = bits >> 16 & 0xff; o2 = bits >> 8 & 0xff; o3 = bits & 0xff; if (h3 == 64) { tmp_arr[ac++] = String.fromCharCode(o1); } else if (h4 == 64) { tmp_arr[ac++] = String.fromCharCode(o1, o2); } else { tmp_arr[ac++] = String.fromCharCode(o1, o2, o3); } } while (i < data.length); dec = tmp_arr.join(''); dec = utf8_decode(dec); return dec; }95、原生JavaScript实现utf8解码function utf8_decode(str_data){ var tmp_arr = [],i = 0,ac = 0,c1 = 0,c2 = 0,c3 = 0;str_data += ''; while (i < str_data.length) { c1 = str_data.charCodeAt(i); if (c1 < 128) { tmp_arr[ac++] = String.fromCharCode(c1); i++; } else if (c1 > 191 && c1 < 224) { c2 = str_data.charCodeAt(i + 1); tmp_arr[ac++] = String.fromCharCode(((c1 & 31) << 6) | (c2 & 63)); i += 2; } else { c2 = str_data.charCodeAt(i + 1); c3 = str_data.charCodeAt(i + 2); tmp_arr[ac++] = String.fromCharCode(((c1 & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63)); i += 3; } } return tmp_arr.join(''); }96、原生JavaScript获取窗体可见范围的宽与高function getViewSize(){ var de=document.documentElement; var db=document.body; var viewW=de.clientWidth==0 ? db.clientWidth : de.clientWidth; var viewH=de.clientHeight==0 ? db.clientHeight : de.clientHeight; return Array(viewW ,viewH); }97、原生JavaScript判断IE版本号（既简洁、又向后兼容！）var _IE = (function(){ var v = 3, div = document.createElement('div'), all = div.getElementsByTagName('i'); while ( div.innerHTML = '<!--[if gt IE ' + (++v) + ']><i></i><![endif]-->', all[0] ); return v > 4 ? v : false ; }());98、原生JavaScript获取浏览器版本号function browserVersion(types) { var other = 1; for (i in types) { var v = types[i] ? types[i] : i; if (USERAGENT.indexOf(v) != -1) { var re = new RegExp(v + '(\\/|\\s|:)([\\d\\.]+)', 'ig'); var matches = re.exec(USERAGENT); var ver = matches != null ? matches[2] : 0; other = ver !== 0 && v != 'mozilla' ? 0 : other; } else { var ver = 0; } eval('BROWSER.' + i + '= ver'); } BROWSER.other = other; }99、原生JavaScript半角转换为全角函数function ToDBC(str){ var result = ''; for(var i=0; i < str.length; i++){ code = str.charCodeAt(i); if(code >= 33 && code <= 126){ result += String.fromCharCode(str.charCodeAt(i) + 65248); }else if (code == 32){ result += String.fromCharCode(str.charCodeAt(i) + 12288 - 32); }else{ result += str.charAt(i); } } return result; }100、原生JavaScript全角转换为半角函数function ToCDB(str){ var result = ''; for(var i=0; i < str.length; i++){ code = str.charCodeAt(i); if(code >= 65281 && code <= 65374){ result += String.fromCharCode(str.charCodeAt(i) - 65248); }else if (code == 12288){ result += String.fromCharCode(str.charCodeAt(i) - 12288 + 32); }else{ result += str.charAt(i); } } return result; }

jQuery树叶掉落特效代码 代码使用方法1.将index.html源文件中的JS设置代码插入到你的网页中2.将style.css文件内容合并到你的页面样式表中3.将jquery文件加载到你的页面中，请注意，这不是通用的jquer库注意事项本代码目前仅支持HTML5内核的浏览器，测试时请用IE9-10，Chrome，Safari，Firefox等浏览器。请为页面顶部预留130px的高度以确保页面内容不会完全被树叶遮挡。建议再浏览器中，加上浏览器判断，并提示用户使用HTML5内核的浏览器树叶数量增加事件设置id=”botAgregar”的click事件可以增加树叶的数量，demo中的click设置在body标签中,点击页面的任何区域都会使叶子的数量增加。大家可以根据需要，将id=”botAgregar”设置到需要的标签上{anote icon="fa-download" href="http://pan.baidu.com/share/link?shareid=3827462127&uk=1728498014" type="success" content="下载地址"/}

百度网盘文件直链获取方法 以下是代码：把下面的代码保存为一个php文件，名字随便，可以是download.php，之类的，上传到主机上。<?php $uk = '3239637208';//把uk码改成你自己的 $url = 'http://pan.baidu.com/share/link?shareid=' . $_GET['shareid'] . '&amp;uk='. $uk; $src = file_get_contents($url);//获取下载页面源码 $pattern = '/"dlink\\\":\\\"(.*?)\\\"/is';//匹配下载按钮 preg_match_all($pattern, $src, $result); $fileurl = str_replace("\\", "", $result[1][0]);//各种替换 header("location:$fileurl"); ?>使用方法 上传文件，分享文件，得到分享链接：http://pan.baidu.com/share/link?shareid=442143&amp;uk=3239637208用uk码替换掉代码第一行的3239637208，，然后用shareid替换http://PHP文件地址.com/download.php?shareid=xxxxxx里面的xxxxxx，最后得到的地址就是百度网盘文件的直链啦~ 例如我的就是https://nobb.cc/download.php?shareid=779462854