<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>拆分文本节点splitText()</title>
<!--
node.splitText(n);合并文本节点node从索引n开始拆分,包括索引n
原本的文本节点node会被修改
-->
</head>
<body>
<div id="a"></div>
<script>
var div=document.getElementById("a");
var text1=document.createTextNode("我是谁?");
div.appendChild(text1);
var text2=div.firstChild.splitText(2);//从索引2开始拆分,包含2
console.log(text2);//谁?
console.log(text1);//我是
</script>
</body>
</html>