iOS开发中邮箱，电话号码，身份证，密码，昵称正则表达式验证

//邮箱

(BOOL) validateEmail:(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];
}

//手机号码验证

(BOOL) validateMobile:(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];
}

//车牌号验证

(BOOL) validateCarNo:(NSString )carNo
{
  NSString carRegex = @"^[\u4e00-\u9fa5]{1}[a-zA-Z]{1}[a-zA-Z_0-9]{4}[a-zA-Z0-9\u4e00-\u9fa5]$";
  NSPredicate *carTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",carRegex];
  NSLog(@"carTest is %@",carTest);
  return [carTest evaluateWithObject:carNo];
}

//车型

(BOOL) validateCarType:(NSString )CarType
{
  NSString CarTypeRegex = @"^[\u4E00-\u9FFF]+$";
  NSPredicate *carTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",CarTypeRegex];
  return [carTest evaluateWithObject:CarType];
}

//用户名

(BOOL) validateUserName:(NSString )name
{
  NSString userNameRegex = @"^[A-Za-z0-9]{6,20}+$";
  NSPredicate *userNamePredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",userNameRegex];
  BOOL B = [userNamePredicate evaluateWithObject:name];
  return B;
}

//密码

(BOOL) validatePassword:(NSString )passWord
{
  NSString passWordRegex = @"^[a-zA-Z0-9]{6,20}+$";
  NSPredicate *passWordPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",passWordRegex];
  return [passWordPredicate evaluateWithObject:passWord];
}

//昵称

(BOOL) validateNickname:(NSString )nickname
{
  NSString nicknameRegex = @"^[\u4e00-\u9fa5]{4,8}$";
  NSPredicate *passWordPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",nicknameRegex];
  return [passWordPredicate evaluateWithObject:nickname];
}

//身份证号

(BOOL) validateIdentityCard: (NSString *)identityCard
{
  BOOL flag;
  if (identityCard.length <= 0) {
  flag = NO;
  return flag;

  }
  NSString regex2 = @"^(\d{14}|\d{17})(\d|[xX])$";
  NSPredicate identityCardPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex2];
  return [identityCardPredicate evaluateWithObject:identityCard];
}</pre>