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>
</head>
<body>
    <button>添加</button>
    <ul>
        <li>111</li>
        <li>222</li>
        <li>333</li>
    </ul>
    <script>
        var uls = document.getElementsByTagName("ul");
        var lis = document.querySelectorAll("ul li");
        var btn = document.querySelector("button");
        btn.onclick  = function() {
            var li1 = document.createElement("li");
            li1.innerText = Math.round(Math.random() * 9 + 1);
            uls[0].appendChild(li1);
            console.log(uls,"走")
        }
        
        for(var i=0;i<uls.length;i++) {
            uls[i].onclick = function(eve) {
            console.log(eve)
            if(eve.target.nodeName == 'LI') {
                alert(eve.target.innerText)
            }
        }
        }
    </script>
</body>
</html>