lovecoding
/
W260426


			
				
					
						
						
							1234567891011121314151617181920212223242526272829303132
							<!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>
    <!-- dataset属性 格式： data-自定义的属性名 -->
    <div id="box">
        <ul>
            <li data-index="0" data-id="1001">a</li>
            <li data-index="1" data-id="1002">b</li>
            <li data-index="2" data-id="1003">c</li>
            <li data-index="3" data-id="1004">d</li>
            <li data-index="4" data-id="1005">e</li>
        </ul>
    </div>
    <script>
        // 获取元素
        var lis = document.querySelectorAll("li");

        for(var i=0;i<lis.length;i++){
            lis[i].onclick = function(){
                var index = this.dataset.index;

                console.log(this.dataset.id);
            }
        }
    </script>
</body>
</html>