正则表达式_检测手机号和邮箱是否合法

//检测手机号码是否合法
private bool CheckPhoneIsAble(string input)
{
if(input.Length<11)
{
return false;
}
//电信手机号码正则
string dianxin = @"^1[3578][01379]\d{8}$";
Regex regexDX = new Regex(dianxin);
//联通手机号码正则
string liantong = @"^1[34578][01256]\d{8}";
Regex regexLT = new Regex(dianxin);
//移动手机号码正则
string yidong = @"^(1[012345678]\d{8}|1[345678][012356789]\d{8})$";
Regex regexYD = new Regex(dianxin);
if (regexDX.IsMatch(input) || regexLT.IsMatch(input) || regexYD.IsMatch(input))
{
return true;
}
else{
return false;
}
}

//检测手机号码是否合法

public static boolean emailFormat(String email){
        boolean tag=true;
        final String pattern1="^([a-z0-9A-Z]+[-|//.]?)+[a-z0-9A-Z]@([a-z0-9A-Z]+(-[a-z0-9A-Z]+)?//.)+[a-zA-Z]{2,}$";
        final Pattern pattern=Pattern.compile(pattern1);
        final Matcher mat=pattern.matcher(email);
        if(!mat.find()){
            tag=false;
        }
        return tag;
    }