正则表达式验证邮箱

View Code 
<!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>正则表达式验证邮箱</title>
<script>
window.onload=function()
{
    var oTxt=document.getElementById('txt');
    var oBtn=document.getElementById('btn');
    
    oBtn.onclick=function()
    {
        var reg=/^\w+@[a-z0-9]+\.[a-z]+$/i;
        
        if(reg.test(oTxt.value))
        {
            alert('对');
        }
        else
        {
            alert('错');    
        }
    };
};
</script>
</head>

<body>
<input type="txt" id="txt" />
<input type="button" value="验证" id="btn" />
</body>
</html>
<!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>正则表达式验证邮箱</title>
<script>
window.onload=function()
{
    var oTxt=document.getElementById('txt');
    var oBtn=document.getElementById('btn');
    
    oBtn.onclick=function()
    {
        var reg=/^\w+@[a-z0-9]+\.[a-z]+$/i;
        
        if(reg.test(oTxt.value))
        {
            alert('对');
        }
        else
        {
            alert('错');    
        }
    };
};
</script>
</head>

<body>
<input type="txt" id="txt" />
<input type="button" value="验证" id="btn" />
</body>
</html>

 

posted @ 2013-04-23 17:59  yexingwen  阅读(2196)  评论(0)  编辑  收藏  举报