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>

 

 

posted on 2013-05-25 16:31  天上星  阅读(2095)  评论(1编辑  收藏  举报

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