5 -- 正则判断手机或邮箱输入合法性

1.方法

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//手机号码的正则表达式
- (BOOL)isValidateMobile:(NSString *)mobile{
//手机号以13、15、18开头，八个\d数字字符
NSString *phoneRegex = @"^((13[0-9])|(15[^4,\\D])|(18[0,0-9]))\\d{8}$";
NSPredicate *phoneTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",phoneRegex];
return [phoneTest evaluateWithObject:mobile];
}

//邮箱地址的正则表达式
- (BOOL)isValidateEmail:(NSString *)email{
NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}";
NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
return [emailTest evaluateWithObject:email];
}
2.调用

if ([self isValidateMobile:_message.text] == YES )