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  • Js网站开发学习第一天

    1、登录时,记住密码单选框,鼠标移上去显示div里的内容,移开则消失;

     1 <head>
     2 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
     3     <title></title>
     4     <style type="text/css">
     5         #div1 {
     6             100px;
     7             height:50px;
     8             padding:0;
     9             margin:0;
    10             background-color:white;
    11             border:1px solid;
    12             display:none;
    13         }
    14     </style>
    15 </head>
    16 <body>
    17     <label><input  type="checkbox" onmouseover="document.getElementById('div1').style.display='block'" onmouseout="document.getElementById('div1').style.display='none'" />自动登录</label>
    18     <div id="div1">
    19         将会为您提供新的服务
    20     </div>
    21 </body>

    2、div鼠标移上去自动变颜色,移开后变为原色

    (1)

    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
        <title></title>
        <style type="text/css">
            div{
                100px;
                height:100px;
                background-color:blue;
            }
            .box {
                200px;
                height:200px;
                background-color :green;
            }
        </style>
    </head>
    <body>
        <div id="div1" onmouseover="document.getElementById('div1').className='box';" onmouseout="document.getElementById('div1').className='';">
     </div>
    </body>

    (2)用Js函数

    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
        <title></title>
        <style type="text/css">
           #div1{
                100px;
                height:100px;
                background-color:blue;
            }
            .box {
                200px;
                height:200px;
                background-color :green;
            }
        </style>
        <script type="text/javascript">
            function toGreen() {
                document.getElementById('div1').style.width = '200px';
                document.getElementById('div1').style.height = '200px';
                document.getElementById('div1').style.backgroundColor = 'green';
            }
            function tored() {
                document.getElementById('div1').style.width = '100px';
                document.getElementById('div1').style.height = '100px';
                document.getElementById('div1').style.backgroundColor = 'red';
            }
        </script>
    </head>
    <body>
        <div id="div1" onmouseover="toGreen()" onmouseout="tored()">
     </div>
    </body>

    (3)

    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
        <title></title>
        <style type="text/css">
           #div1{
                100px;
                height:100px;
                background-color:blue;
            }
            .box {
                200px;
                height:200px;
                background-color :green;
            }
        </style>
        <script type="text/javascript">
            function toGreen() {
                var oDiv1 = document.getElementById('div1');
                oDiv1.style.width = '200px';
                oDiv1.style.height = '200px';
                oDiv1.style.backgroundColor = 'green';
            }
            function tored() {
                var oDiv1 = document.getElementById('div1');
                oDiv1.style.width = '100px';
                oDiv1.style.height = '100px';
                oDiv1.style.backgroundColor = 'red';
            }
        </script>
    </head>
    <body>
        <div id="div1" onmouseover="toGreen()" onmouseout="tored()">
     </div>
    </body>
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  • 原文地址:https://www.cnblogs.com/wjr0117/p/6791993.html
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