今天 刚好看到JS 的 FOR IN 循环

<script type="text/javascript">
var mycode = new Array()
mycode [0] = "你好"

mycode[1]="谢谢"
mycode[2]="不客气"

for (i=0;i<mycode.length;i++)
{
document.write(mycode[i] + "<br />")
}
</script>

<script type="text/javascript">

var m
var mycode = new Array()
mycode [0] = "你好"
mycode [1] = "谢谢"
mycode [2] = "不客气"

for (m in mycode)
{
document.write(mycode[m] + "<br />")
}
</script>