Question

怎么用javascript实现鼠标移动在按钮上就显示相应的内容

Answer 1

<span id="a">aaaaaaaa</span>

<input type="submit" name="aa" onMouseOver="show();" value="鼠标移动到此">

<script>
function show()
{
a.innerHTML="bbbbbbbbbbbb";
}
</script>

简写
<span id="a">aaaaaaa</span>
<input type="submit" name="aa" onMouseOver="a.innerHTML='bbbbbbbbbbbb';" value="鼠标移动到此">

Answer 2

<input type="button" name="aa" onMouseOver="show();" value="鼠标移动到此">

<script>
function show()
{
a.innerHTML="bbbbbbbbbbbb";
}
</script>

Answer 3

想用JAVAscript有电子书