lovecoding
/
VIP26


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        #list {
            width: 100px;
            height: 300px;
            background: #00f;
        }
    </style>
</head>
<body>
    <!-- 
        事件委托的主要作用：用来减少内存消耗，不用处理多次循环绑定
     -->
     <ul id="list">
        <li>1111</li>
        <li>2222</li>
        <li>3333</li>
     </ul>
     <button id="btn">添加</button>
    <script src="../js/1.事件委托.js"></script>
</body>
</html>