zoukankan html css js c++ java

封装事件框架

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
        div{
             100px;
            height: 100px;
            background: red;
        }
    </style>
</head>
<body>
<button id="btn">按钮</button>
<div id='div'></div>
</body>
<script src='itcast.js'></script>
<script type="text/javascript">

    //测试
    $$.event.click('btn', function(){
        document.getElementsByTagName('div')[0].style.background = 'green'
    });

    $$.event.mouseover('div', function(){
        this.style.background = 'blue'
    });

    $$.event.mouseout('div', function(){
        this.style.background = 'pink'
    });

</script>
</html>

使用 extend 改造

$$.hover('div' , function(){ } , function(){ } ) ;

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
        div{
             100px;
            height: 100px;
            background: red;
        }
    </style>
</head>
<body>
<button id="btn">按钮</button>
<div id='div'></div>
</body>
<script src='itcast2.js'></script>
<script type="text/javascript">

    //测试
    $$.click('btn', function(){
        document.getElementsByTagName('div')[0].style.background = 'green'
    });

    $$.hover('div', function(){                    
        this.style.background = 'blue'
    },function(){
        this.style.background = 'pink'
    });

</script>
</html>

查看全文

相关阅读:
SSIS -->> Data Type
SSIS ->> Parameter
Data Flow ->> Term Lookup
Data Flow ->> Term Extraction
Data Flow ->> Pivot
Data Flow ->> OLE Command
Data Flow ->> Multicast
Data Flow ->> Union All
Data Flow ->> Merge
LeetCode OJ 118. Pascal's Triangle

原文地址：https://www.cnblogs.com/shanlu0000/p/11605191.html