determine credit card type from number c#

Using System;namespace creditcards{//　　Credit card number Verification

/** * Verify that the bank card number is a credit card * @param $cardnumber * @return bool*/ functionValidatecard ($cardnumber){ $cardnumber=Preg_replace("/\d|\s/", "",$cardnumber); $cardlength=strlen($cardnumber);if($cardlength!=0){ $parity=$cardlength%; $sum=0; for($i= 0;$i$cardlength;$i++){

This article mainly introduced the PHP verification credit card number is correct function, this article directly gives the realization code, needs the friend may refer to under You can use the following PHP function to verify that a card number is a

(! [IdentityStringPredicate evaluateWithObject: identityString]) return NO; // ** Start verification * // Save the first 17 weighting factors in the array NSArray * idCardWiArray = @ [@ "7", @ "9 ", @ "10", @ "5", @ "8", @ "4", @ "2", @ "1", @ "6", @ "3 ", @ "7", @ "9", @ "10", @ "5", @ "8", @ "4", @ "2"]; // This is the possible 11-bit remainder and verification code after dividing by 11. It is also saved as an array NSArray * idCardYArray = @ [@ "1", @ "0 ", @ "10", @ "9", @ "8", @ "7", @ "6"

Vb. NET code verifies that the credit card number is correct, this code uses the Luhn algorithm to verify Dim Creditcardnumber as String creditcardnumber = "1234567891234563" Please enter the number you want to verify by yourself If Creditcardnumber.length for x = 0 to num = creditcardnumber.substring (x,

", @ "4", @ "2", @ "1", @ "6", @ " 3 ", @" 7 ", @" 9 ", @" 10 ", @" 5 ", @" 8 ", @" 4 ", @" 2 "]; This is the 11-bit remainder, the verification code, which is divided by 11, also save an array of Nsarray *idcardyarray = @[@ "1", @ "0", @ "10", @ "9", @ "8", @ "7", @ "6", @ "5", @ "4", @ "3", @ "2"]; Used to preserve the sum of the first 17 Nsinteger idcardwisum = 0 after the weighted factor; for (int i = 0;i In the following is the judgment of the bank

Tag: false car return ALS Ace Verify ram Validate = =/*** Verify that the bank card number is a credit card* @param $cardnumber* @return BOOL*/function Validatecard ($cardnumber) {$cardnumber = Preg_replace ("/\d|\s/", "", $cardnumber);$cardlength = strlen ($cardnumber), if ($cardlength!=0) {$parity = $cardlength% 2;$s

You can use the following PHP function to verify that a card number is a credit card: function Validatecard ($cardnumber) { $cardnumber = preg_replace ("/\d|\s/", "", $cardnumber); # Strip any non-digits $cardlength = strlen ($cardnumber); if ($cardlength!= 0) { $parity = $cardlength% 2;

A card (Application score card) Request scorecardB Card (Behavior score card) Behavioral scorecardC Card (Collection score card) Collection scorecardThe difference between scoring mechanisms is:1. The time of use is different. res

:@ ""];if ([string rangeofcharacterfromset:[characterset invertedset]].location! = nsnotfound) {return NO;}Text = [text Stringbyreplacingcharactersinrange:range withstring:string];Text = [Text stringbyreplacingoccurrencesofstring:@ "-" withstring:@ ""];NSString *newstring = @ "";while (Text.length > 0) {NSString *substring = [Text Substringtoindex:min (Text.length, 4)];newstring = [NewString stringbyappendingstring:substring];if (substring.length = = 4) {newstring = [newstring stringbyappendings

// determine the legitimacy of the bank card number input // Parameters: Enter the bank card number to determine if the bank card number is

Uses dateutils;ConstIntmultiplication: array [1 .. 17] of integer = (, 2 );// Function name: isrightid// Parameter: Sid, ID card number (input)// Ssex, gender (output)// Age, age (output)// Return value: Sid is a standard ID card number, and OK is returned; otherwise, corresponding information is returned.Function isri

Http://www.cnblogs.com/wuhuisheng/archive/2011/03/23/1992652.html The main code for phone number verification is as follows: Public bool istelephone (string str_telephone) { Return System. Text. regularexpressions. RegEx. ismatch (str_telephone, @ "^ (\ D {3, 4 }-)? \ D {6, 8} $ "); } The main code used to verify the mobile phone number is as follows: Public bool ishandset (string str_handset) { Return Sys

: Here we go, step-by-step down. First, we first develop the program, firstly, a new MVC project (asp.net words, the official demo is asp.net, you can download to refer to: https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?) Chapter=11_1), known as: micro-credit Payment public number payment, as shown below: Then right-click the item and we'll modify the properties as shown below: Then we will auto

C # Implicit conversions Java and C # conform to similar data type automatic conversions and cast rules. Like Java, C # supports both implicit type conversions and explicit type conversions. In the case of widening conversions,

How to determine the number of input parameters in a shell script submission: Junjie font: [Increase decrease] type: Reprint This article mainly introduces the method of judging the number of input parameters in shell script, using the built-in variable $ #即可实现判断输入了多少个参数, the friend you need can refer to the following

use jquery to determine the browser type: Determine whether the browser type is IE browser or Firefox or even opera or Apple browser Safari,jquery effect code is as follows: Determine the browser type and version

Preface File Upload function is a lot of Web sites must function, and the decision file type can not only filter file upload, but also to prevent users upload malicious executable files and scripts, as well as the file upload server as a free file storage server use. For uploading files, it is not easy to determine the type of file by suffix name, because a malic

) | (? =2) (? =3) |3 (? =4) |4 (? =5) |5 (? =6) |6 (? =7) |7 (? =8) |8 (? =9)) {3,}| (?: 9 (? =8) |8 (? =7) |7 (? =6) |6 (? =5) |5 (? =4) |4 (? =3) (?) (?) (? |3) | | (? =2)) {3,}) =1Matches more than 3 digits of duplicate numbers([\d]) \1{2,}Numbers that match date types(19|20) [\d] {2} (1[0-2]|0?) [1-9]) (31|2[0-9]|1[0-9]|0?) [0-9])Mobile phone Number class(13[0-9]|15[0-9]|18[0-9]) ([\d]{2,4}) {2}Match 33111 types of([\d]) \1{1,} ([\d]) \2{2,}Match

JS to determine the browser type and version number