标签: javascript image html
我试图让div更改另一张图片的src,但我得到TypeError: 'null' is not an object.
div
src
TypeError: 'null' is not an object.
<div id="text" onmouseover="document.getElementById('button').src='pushed.png'"> Hello </div> <img id"button" src="unpushed.png"/>
答案 0 :(得分:2)
我怀疑这是因为你正在=中的id"button"。
=
id"button"