正则表达式（银行卡号，手机号码，车牌号，身份证号）

//检查银行卡号

- (BOOL) checkCardNo:(NSString*) cardNo{

    int oddsum = 0;     //奇数求和
    int evensum = 0;    //偶数求和
    int allsum = 0;
    int cardNoLength = (int)[cardNolength];
    int lastNum = [[cardNosubstringFromIndex:cardNoLength-1]intValue];
   
    cardNo = [cardNo substringToIndex:cardNoLength -1];
    for (inti = cardNoLength -1; i>=1;i--) {
        NSString *tmpString = [cardNosubstringWithRange:NSMakeRange(i-1,1)];
        int tmpVal = [tmpStringintValue];
        if (cardNoLength % 2 ==1) {
            if((i % 2) == 0){
                tmpVal *= 2;
                if(tmpVal>=10)
                    tmpVal -= 9;
                evensum += tmpVal;
            }else{
                oddsum += tmpVal;
            }
        }else{
            if((i % 2) == 1){
                tmpVal *= 2;
                if(tmpVal>=10)
                    tmpVal -= 9;
                evensum += tmpVal;
            }else{
                oddsum += tmpVal;
            }
        }
    }
   
    allsum = oddsum + evensum;
    allsum += lastNum;
    if((allsum % 10) == 0)
        return YES;
    else
        return NO;

}

/////手机号码的有效性判断
//检测是否是手机号码
- (BOOL)isMobileNumber:(NSString*)mobileNum
{
    /**
     * 手机号码
     * 移动：134[0-8],135,136,137,138,139,150,151,157,158,159,182,187,188
     * 联通：130,131,132,152,155,156,185,186
     * 电信：133,1349,153,180,189
     */
    NSString * MOBILE =@"^1(3[0-9]|5[0-35-9]|8[025-9])\\d{8}$";
    /**
     10         * 中国移动：China Mobile
     11         * 134[0-8],135,136,137,138,139,150,151,157,158,159,182,187,188
     12         */
    NSString * CM = @"^1(34[0-8]|(3[5-9]|5[017-9]|8[278])\\d)\\d{7}$";
    /**
     15         * 中国联通：China Unicom
     16         * 130,131,132,152,155,156,185,186
     17         */
    NSString * CU = @"^1(3[0-2]|5[256]|8[56])\\d{8}$";
    /**
     20         * 中国电信：China Telecom
     21         * 133,1349,153,180,189
     22         */
    NSString * CT = @"^1((33|53|8[09])[0-9]|349)\\d{7}$";
    /**
     25         * 大陆地区固话及小灵通
     26         * 区号：010,020,021,022,023,024,025,027,028,029
     27         * 号码：七位或八位
     28         */
    // NSString * PHS = @"^0(10|2[0-5789]|\\d{3})\\d{7,8}$";
   
    NSPredicate *regextestmobile = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@", MOBILE];
    NSPredicate *regextestcm = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@", CM];
    NSPredicate *regextestcu = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@", CU];
    NSPredicate *regextestct = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@", CT];
   
    if (([regextestmobileevaluateWithObject:mobileNum] ==YES)
        || ([regextestcm evaluateWithObject:mobileNum] ==YES)
        || ([regextestct evaluateWithObject:mobileNum] ==YES)
        || ([regextestcu evaluateWithObject:mobileNum] ==YES))
    {
        return YES;
    }
    else
    {
        return NO;
    }
}

#pragma mark ***_车牌号正则_***
- (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 = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@",carRegex];
//    NSLog(@"carTest is %@",carTest);
    if ([carTest evaluateWithObject:carNo]) {
        return YES;
    }else{
        return NO;
    }

}

#pragma mark判断输入的身份证号是否正确
- (BOOL)checkIdentityCardNo:(NSString*)cardNo
{

    if (cardNo.length != 18) {

        return  NO;

    }
   
    NSArray* codeArray = [NSArrayarrayWithObjects:@"7",@"9",@"10",@"5",@"8",@"4",@"2",@"1",@"6",@"3",@"7",@"9",@"10",@"5",@"8",@"4",@"2",nil];
   
    NSDictionary* checkCodeDic = [NSDictionarydictionaryWithObjects:[NSArrayarrayWithObjects:@"1",@"0",@"X",@"9",@"8",@"7",@"6",@"5",@"4",@"3",@"2",nil] forKeys:[NSArrayarrayWithObjects:@"0",@"1",@"2",@"3",@"4",@"5",@"6",@"7",@"8",@"9",@"10",nil]];

    NSScanner* scan = [NSScannerscannerWithString:[cardNosubstringToIndex:17]]; 

    int val;

    BOOL isNum = [scan scanInt:&val] && [scanisAtEnd];

    if (!isNum) {

        return NO;

    }

    int sumValue = 0;

    for (inti =0; i<17; i++) {

        sumValue+=[[cardNosubstringWithRange:NSMakeRange(i ,1) ]intValue]* [[codeArray objectAtIndex:i]intValue];

    } 

    NSString* strlast = [checkCodeDicobjectForKey:[NSStringstringWithFormat:@"%d",sumValue%11]];

    if ([strlast isEqualToString: [[cardNosubstringWithRange:NSMakeRange(17,1)]uppercaseString]]) {

        return YES;

    }

    return  NO;

}