3.14.htm

来自「精通JavaScript动态网页编程（书）」· HTM 代码 · 共 9 行

<script language="javascript">
<!--
a = 3;
b=null;
name = "Three";
alert("a的类型："+(typeof a)+"\nb的类型:"+(typeof b)+"\nname的类型"+(typeof name)); 
//-->
</script>