[摘要]
<script type="text/javascript">
var a = 100;
function test(){
var b = 2*a;
var a= 200;
var c= a/2;
alert(b);
alert(c);
}
test();
</script>
<br /><center>如不能显示效果，请按Ctrl+F5刷新本...[全文]
[摘要]
JavaScript is an Object Oriented Programming (OOP) language. JS是面向对象的编程语言（面向对象）。 An OOP language allows you to define your own objects and make your own vari...[全文]
