parentNode —元素的父节点
<!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>
<ul>
<li>html <button>删除</button></li>
<li>css <button>删除</button></li>
<li>javascript <button>删除</button></li>
</ul>
<script>
// parentNode --元素的父节点
var btns = document.getElementsByTagName("button");
for(var i=0;i<btns.length;i++){
btns[i].onclick = function(){
var temp = window.confirm("确定吗");
if(temp){
this.parentNode.style.display = "none"
}
}
}
</script>
</body>
</html>