一个验证的问题，请教高手

Question

说下，是用javascript+正则表达试来实现

Answer 1

<script language=javascript> 
str="asdadadad0510-54013882asdadsasdsdljflakdjsflajd;lskjfla;[email protected]"
var re=/(\d{4}-\d{7})/ig;
var re2=/\w+@\w+\.\w+?/ig;
if(re.test(str))
alert("ok");
else
alert("no");
if(re2.test(str))
alert("ok");
else
alert("no");
</script> 
简单判断

Answer 2

<script language=javascript> 
str="asdadadad0510-54013882asdadsasdsdljflakdjsflajd;lskjfla;[email protected]"
var re=/(\d{4}-\d{8})/ig;
var re2=/\w+@\w+\.\w+?/ig;
if(re.test(str))
alert("ok");
else
alert("no");
if(re2.test(str))
alert("ok");
else
alert("no");
</script> 
简单判断

Answer 3

<script language="javaScript">
var s="asdadadad0510-54013882asdadsasdsdljflakdjsflajd;lskjfla;[email protected]";
var tel=/\d{4}-\d{8}/g
var email=/\w+?@\w+?\.com/g
alert(s.match(tel));
alert(s.match(email));
</script>