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Implement verification method of email format in js

高洛峰
高洛峰Original
2016-12-09 11:48:491909browse

As shown below: 

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>在此处插入标题</title>
<script type="text/javascript">
//判断用户输入的电子邮箱格式是否正确
function checkEmail(){
　　var myforms=document.forms;
　　var myemail=myforms[0].email.value;
　　var myReg=/^[a-zA-Z0-9_-]+@([a-zA-Z0-9]+\.)+(com|cn|net|org)$/;
 
　　if(myReg.test(myemail)){
　　　　return true;
　　}else{
　　　　myspan.innerText="邮箱格式不对!";
　　　　return false;
}
}
 
</script>
</head>
<body>
　　<form action="#">
　　　　<table>
　　　　<tr><td>邮箱：<input type="text" id=email></td><td><span id=myspan style="text-size:18pt;color:red;"></span></td></tr>
　　　　<tr><td><input type="submit" value="提交" onclick="return checkEmail()"/></td><td></td></tr>
　　　　</table>
　　</form>
 
 
</body>
</html>


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