應(yīng)該是標(biāo)答
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>無(wú)標(biāo)題文檔</title>
</head>
<body>
<ul id="test"><li>JavaScript</li><li>HTML</li></ul>?
?
<script type="text/javascript">
? var otest = document.getElementById("test");??
? var node = document.getElementById("li");
? var newnode = document.createElement("li");
? newnode.innerHTML = "PHP";
? otest.insertBefore(newnode,otest.childNodes[1]);
??
??
??
</script>?
</body>
</html>
2021-03-02
?var otest = document.getElementById("test");
??
? var node = document.getElementById("li");
??
? var newnode = document.createElement("li");
??
? newnode.innerHTML ="php";
??
? otest.insertBefore(newnode.otest.childNodes[1]);
不知道錯(cuò)哪了
2021-02-24
<!DOCTYPE?HTML><html><head><meta?http-equiv="Content-Type"?content="text/html;?charset=utf-8"><title>無(wú)標(biāo)題文檔</title></head><body><ul?id="test"><li>JavaScript</li><li>HTML</li></ul>??<script?type="text/javascript">??var?otest?=?document.getElementById("test");????var?newnode?=?document.createElement("li");??newnode.innerHTML?=?"PHP";??otest.insertBefore(newnode,otest.lastChild);</script>?</body></html>