lovecoding
/
vipAllDay


			
				
					
						
						
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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>
        #box1 {
            width: 500px;
            height: 500px;
            background: red;
        }
        #box2 {
            width: 300px;
            height: 300px;
            background: yellowgreen;
        }
    </style>
</head>
<body>
    <div id="box1">
        <div id="box2"></div>
    </div>
    <script>
        var box1 = document.getElementById("box1");
        // box1.onclick
        /**
         * 事件：
         * 捕获：true
         * 目标
         * 冒泡：false
        */
       /**
        * 事件流：
        *   xxx.addEventListener("监听方法",执行函数,true/false);
       */
        box1.addEventListener("click",function(){
            console.log("111")
        },true)
        box2.addEventListener("click",function(){
            console.log("222")
            // event.stopPropagation()
        },true)
    </script>
</body>
</html>