javascript求解

Question

                  

1.var a = document.getElementById("#details");

2.a.innerHTML="xixi";

3.a.appendChild(aNode);

2，3行浏览器报错:

Uncaught TypeError: Cannot call method 'appendChild' of null index.html:46

request.onreadystatechange

PS：在学习Ajax---XML格式

Answer 1

改成这样我记得好像不要#，var a=document.getElementById("detalis");

Answer 2

建议你把你的js代码<script></script>放到你的</body>的后面。

Answer 3

var a = document.getElementById("details");改成这个               #是jquery用的 js 好像不用的

Answer 4

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