//郵箱
 + (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];
 }  
  //手機(jī)號碼驗(yàn)證
  + (BOOL) validateMobile:(NSString *)mobile{   
  //手機(jī)號以13， 15，18開頭，八個(gè) \d 數(shù)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];
 }
 //車牌號驗(yàn)證
 + (BOOL) validateCarNo:(NSString *)carNo{    
  NSString *carRegex = @"^[\u4e00-\u9fa5]{1}[a-zA-Z]{1}[a-zA-Z_0-9]{4}[a-zA-Z_0-9_\u4e00-\u9fa5]$";   
  NSPredicate *carTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",carRegex];   
  NSLog(@"carTest is %@",carTest);    
  return [carTest evaluateWithObject:carNo];
}  
//車型+ (BOOL) validateCarType:(NSString *)CarType{   
 NSString *CarTypeRegex = @"^[\u4E00-\u9FFF]+$";  
 NSPredicate *carTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",CarTypeRegex];   
 return [carTest evaluateWithObject:CarType];
}  
//用戶名+ (BOOL) validateUserName:(NSString *)name{    
NSString *userNameRegex = @"^[A-Za-z0-9]{6,20}+$";    
NSPredicate *userNamePredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",userNameRegex];   
BOOL B = [userNamePredicate evaluateWithObject:name];    return B;
}  
//密碼
+ (BOOL) validatePassword:(NSString *)passWord{    
NSString *passWordRegex = @"^[a-zA-Z0-9]{6,20}+$";   
NSPredicate *passWordPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",passWordRegex];    
return [passWordPredicate evaluateWithObject:passWord];
} 
 //昵稱
 + (BOOL) validateNickname:(NSString *)nickname{  
  NSString *nicknameRegex = @"^[\u4e00-\u9fa5]{4,8}$";    
  NSPredicate *passWordPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",nicknameRegex];    
  return [passWordPredicate evaluateWithObject:nickname];
}  
//身份證號
+ (BOOL) validateIdentityCard: (NSString *)identityCard{    
   BOOL flag;    
   if (identityCard.length <= 0) {     
        flag = NO;        
        return flag;   
   }   
   NSString *regex2 = @"^(\\d{14}|\\d{17})(\\d|[xX])$";   
   NSPredicate *identityCardPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex2];   
   return [identityCardPredicate evaluateWithObject:identityCard];
}