// 判断手机号码+ (BOOL)validateMobile:(NSString *)mobileNum{    // 手机号码    NSString * MOBILE = @"^1(3[0-9]|5[0-35-9]|8[025-9])\\d{8}$";    // 中国移动：China Mobile    NSString * CM = @"^1(34[0-8]|(3[5-9]|5[017-9]|8[278])\\d)\\d{7}$";    // 中国联通：China Unicom    NSString * CU = @"^1(3[0-2]|5[256]|8[56])\\d{8}$";    // 中国电信：China Telecom    NSString * CT = @"^1((33|53|8[09])[0-9]|349)\\d{7}$";    NSPredicate *regextestmobile = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", MOBILE];    NSPredicate *regextestcm = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CM];    NSPredicate *regextestcu = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CU];    NSPredicate *regextestct = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CT];        if (([regextestmobile evaluateWithObject:mobileNum] == YES)        || ([regextestcm evaluateWithObject:mobileNum] == YES)        || ([regextestct evaluateWithObject:mobileNum] == YES)        || ([regextestcu evaluateWithObject:mobileNum] == YES))    {        return YES;    }    else    {        return NO;    }}