<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<input id="txt1" name="username" class="login">
<script>
var o1=document.getElementById("txt1");
var o2=document.getElementsByClassName("login")[0];
var o3=document.getElementsByName("username")[0];
var o4=document.getElementsByTagName("input")[0];
var o5=document.querySelector("#txt1");
var o6=document.querySelectorAll("#txt1")[0];
console.log(o1==o2);//true
console.log(o2==o3);//true
console.log(o3==o4);//true
console.log(o4==o5);//true
console.log(o5==o6);//true
</script>
</body>
</html>
JS---获取元素的方法
猜你喜欢
转载自www.cnblogs.com/beast-king/p/9176559.html
今日推荐
周排行