<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<div class="box">
<button data-action="remove">移除</button>
<button data-action="new">新建</button>
<button data-action="revise">修改</button>
<button data-action="search">查找</button>
</div>
<script>
var boxEle=document.querySelector('.box')
boxEle.addEventListener('click',function(e){
var btnEle=e.target;
console.log(btnEle.dataset.action);
})
</script>
</body>
</html>
标签：btnEle,区分,JavaScript,按钮,var,boxEle From： https://www.cnblogs.com/theYT/p/16873324.html