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// JavaScript Document
function al()
{
alert("hello")
}
function number()
{
prompt("输个数字进来哦","只能是数字哦")
}
function shuzi() //是数字返回false,不是数字返回true.
{
var a;
var b=prompt("输个数字进来吧","只能是数字啊");
a=isNaN(b);
{
alert(a);
}
}
function shuzu()//定义数组
{
var ab=new Array();
ab[0]=123;
ab[1]="ab";
document.write(ab)}
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> <script src="5-15.js" type="text/javascript" language="javascript"> </script> </head> <body> <input type="button" onclick="al()" value="hello"><br> <input type="button" onclick="number()" value="数字"><br> <input type="button" onclick="shuzi()" value="判断是否为数字"><br> <input type="button" onclick="shuzu()" value="获取数组里面的值"><br> </body> </html>
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原文地址：http://www.cnblogs.com/lk-kk/p/4507188.html
