3-19编程练习代码检查

来源：3-19 编程练习

shalomg

2018-09-29 16:02:05

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title> </title>
</head>
<body>
<script>
    function userEmail(email){
        var syb = email.lastIndexOf("@");
        if(syb!=-1){
            var field = email.slice(syb+1);
            var user = email.slice(0,syb);
            return [user,field];
        }else{
            return ["","邮箱格式有误"]
        }
    }
    var eAdr = userEmail(prompt("请输入登录邮箱"));
    document.write("邮箱的用户名是："+eAdr[0]+"<br/>");
    document.write("登录的邮箱域名名是："+eAdr[1]+"邮箱<br/>");
    
</script>
</body>
</html>

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