pragma makr - 检测是否为手机号

• (BOOL)validateMobile:(NSString *)mobileNum
  {
  NSString *regex = @"^1[3|5|7|8][0-9]\d{8}$";
  NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex];

  if(![pred evaluateWithObject:mobileNum])
  {
  return NO;
  }

  else
  {
  return YES;
  }
  }