<!DOCTYPE html> <html> <head> <title></title> <style type="text/css"> .demo05{ background-color: #000; height:60px; width: 40px; -webkit-border-radius:20px/30px; -moz-border-radius:20px/30px; border-radius:20px/30px; } .mouse{ transform-origin:10px 0;border-top: transparent;border-bottom: transparent;border-right: #000;-ms-transform:rotate(-60deg);-webkit-transform:rotate(-60deg);-moz-transform:rotate(-60deg);width: 0; height: 0; border-width:20px 10px 20px 0; border-style: solid; } *{margin:0;padding:0;} .wrap{font-size:0;list-style:none;display:block;text-align:center;} /* hack for chrome */ li{font-size:13px;vertical-align:top;display:inline-block;*display:inline;*zoom:1;} #test{margin-bottom:30px;} #test li{text-align:left;width:130px;height:130px;padding:20px;background:#ffc;border:1px solid #f30;} #test p{margin-bottom:10px;} #test .button{display:block;width:60px;height:25px;line-height:25px;text-align:center;background:#f30;color:#fff;white-space:nowrap;} .nav{border-top:1px solid #ddd;border-bottom:1px solid #ddd;padding:2px 0;margin-bottom:10px;background:#f7f7f7;} .nav li{background:#333;padding:8px 10px;border:3px solid #fff;} .nav a{color:#fff;text-decoration:none;} </style> <script src="http://code.jquery.com/jquery-latest.js"></script> <script type="text/javascript"> /*function getByClass(oParent,sClass){ var parent=document.getElementsByTagName(oParent); var parentEle=parent[0].getElementsByTagName("*"), resultArr=[]; for(var i=0;i<parentEle.length;i++){ if(parentEle[i].className==sClass){ //只匹配class='sClass'的情况 resultArr.push(parentEle[i]); } } return resultArr; }*/ function getByClass(oParent,sClass){ var parent=document.getElementsByTagName(oParent); var parentEle=parent[0].getElementsByTagName("*"), resultArr=[], /*pattern=/+sClass+/i;*/ pattern=new RegExp('\b'+sClass+'\b'); for(var i=0;i<parentEle.length;i++){ if(pattern.test(parentEle[i].className)){ resultArr.push(parentEle[i]); } } return resultArr; } window.onload=function(){ console.log(getByClass("body","wrap").length); } </script> </head> <body id="box"> <div class="demo05"></div> <div class="mouse"></div> <ul><li>woshili1</li><li>woshili1</li><li>woshili1</li><li>woshili1</li><li>woshili1</li><li>woshili1</li></ul> <ul id="test" class="wrap"> <li><p>Lorem ipsum dolor sit amet, consectetur adipisicing elit</p> <a class="button">button</a></li> <li><p>sed do eiusmod tempor incididunt ut</p> <a class="button">button</a></li> <li><p>fugiat nulla pariatur. Excepteur sint occaecat cupidatat non</p></p> <a class="button">button</a></li> </ul> <ul class="nav wrap" id="ul1"> <li><a href="#">item 1</a></li> <li><a href="#">item 2</a></li> <li><a href="#">item 3</a></li> <li><a href="#">item 4</a></li> <li><a href="#">item 5</a></li> </ul> <ul class="nav wrap"> <li><a href="#">item 1</a></li> <li><a href="#">item 2</a></li> <li><a href="#">item 3</a></li> </ul> <ul class="nav wrap"> <li><a href="#">item 1</a></li> </ul> <table width="100%" border="0" cellpadding="0" cellspacing="0" style="border-collapse:collapse;"> <tr> <td style="border:1px solid #39F;"> </td> <td style="border:1px solid #39F;"> </td> </tr> <tr> <td style="border:1px solid #39F;"> </td> <td style="border:1px solid #39F;"> </td> </tr> </table> <table width="100%" border="0" cellspacing="1" cellpadding="0" bgcolor="#6699FF"> <tr> <td bgcolor="#FFFFFF"> </td> <td bgcolor="#FFFFFF"> </td> </tr> <tr> <td bgcolor="#FFFFFF"> </td> <td bgcolor="#FFFFFF"> </td> </tr> </table> <input type="text" value="请输入关键词" style=" 300px; height: 30px; border: 1px solid #ccc; color: #ccc; font-size: 14px;"> <input type="submit" style="border: 0; background-color: #f89406; color: #fff; padding: 8px 30px; font-size: 14px;" value="搜索"> </body> </html>