jQuery 13 一些练习
一.高亮选择（主要用到addclass和removeclass方法，它们用于增删样式）
<html xmlns="http://www.w3.org/1999/xhtml"> <head> <title></title> <script src="JScript/jquery-1.9.1.js" type="text/javascript"></script> <style type="text/css"> .hightlight{background-color:Yellow} </style> <script type="text/javascript"> $(function () { $("#table1 tr").mouseover(function () { $(this).addClass("hightlight").siblings().removeClass("hightlight"); }); }); </script> </head> <body> <table id="table1" border="" cellspacing="0" cellpadding="0" width="100%"> <tr> <td>fadfa</td> </tr> <tr> <td>fafdaf</td> </tr> <tr> <td>fafaf</td> </tr> <tr> <td>fafdafa</td> </tr> </table> </body> </html>
二、换肤功能
<html xmlns="http://www.w3.org/1999/xhtml"> <head> <title></title> <script src="JScript/jquery-1.9.1.js" type="text/javascript"></script> <script src="JScript/jquery.cookie.js" type="text/javascript"></script> <script type="text/javascript"> $(function () { if ($.cookie("lastcolor")) { $(document.body).css("background-color", $.cookie("lastcolor")); }; $("table td").click(function () { $.cookie("lastcolor", $(this).css("background-color"), {expires:1}); $(document.body).css("background-color", $(this).css("background-color")).css("cursor","Pointer"); }); }); </script> </head> <body> <table border="1" cellspacing="0" cellpadding="0" width="10%"> <tr> <td style="background-color:Red">红色</td> <td style="background-color:Blue">蓝色</td> <td style="background-color:Green">绿色</td> </tr> </table> </body> </html>
三、全选 、反选等
<html xmlns="http://www.w3.org/1999/xhtml"> <head> <title></title> <script src="JScript/jquery-1.9.1.js" type="text/javascript"></script> <script type="text/javascript"> $(function () { $("#selall").click( function () { $(":checkbox").attr("checked", true); }); }); $("#selnone").click( function () { $(":checkbox").attr("checked", false); }); }); $("#resver").click(function () { $(":checkbox").each(function () { $(this).attr("checked",!$(this).attr("checked")) }); }); }); $(function () { }); </script> </head> <body> <div id="plalst"> <input type="checkbox" />一队 <input type="checkbox" />二队 <input type="checkbox" />三队 <input type="checkbox" />四队 <input type="checkbox" />五队 <input type="checkbox" />六队 </div> <br /><br /><br /> <input type="button" id="selall" value="全选" /> <input type="button" id="selnone" value="全不选" /> <input type="button" id="resver" value="反选" /> <a href="http://www.sina.com" id="link1">sina</a> </body> </html>
四、把ul当成table来处理，并在点击表头时自动展开或关闭子项
<html xmlns="http://www.w3.org/1999/xhtml"> <head> <title></title> <script src="JScript/jquery-1.9.1.js" type="text/javascript"></script> <script type="text/javascript"> $(function () { $("#qq li:even").addClass("header").mouseover(function () { $(this).next("li.detail").show().siblings("li.detail").hide("slow"); }); /*所有包含detail的li的元素隐藏或显示*/ $("#qq li:odd").addClass("detail"); }); </script> <style type="text/css"> ul{list-style-type:none } /*去掉前面的点号*/ .header{background-color:Blue;cursor:pointer;} /*头样式*/ .detail{background-color:Lime;border-color:Gray;border-width:1px;} /*明细样式*/ </style> </head> <body> <ul id="qq" > <li>我的好友</li> <li>张三<br/>李四</li> <li>我的同学</li> <li>ABC<br />FFX</li> <li>陌生人</li> <li>And1<br/>Jim</li> </ul> </body> </html>
五、网页变灰白，主要是用到样式，把documnet全变个背景色为灰白的即可
<html xmlns="http://www.w3.org/1999/xhtml"> <head> <title></title> <script src="JScript/jquery-1.9.1.js" type="text/javascript"></script> <script type="text/javascript"> $(function () { $("#btn").click(function () {//目前不支持哦 $(document.body).toggleClass("blackwhite"); }); }); </script> <style type="text/css"> .blackwhite{filter:Gray;} </style> </head> <body> <input type="button" id="btn" value="变黑白"/> <img src="imgs/45280.jpg"/> </body> </html>
