生成16位数会员卡号列表的校验位 [英] Generating check digit for list of 16 digit loyalty card numbers

问题描述

我需要帮助为我的礼品卡项目创建校验位。

我只能找到检查代码个人号码，但我需要能够为我的卡制作校验位以及通过使用来控制它们。



谢谢！

Hi,

I need help in creating check digit for my gift card project.
I could find only the code for checking individual numbers but I need ability to make check digit for my cards as well as control them through usage.

Thank you!

推荐答案

好吧，你的问题用解决方案标记：Luhn编码。

一个非常快速的谷歌带你去描述它是什么，如何检查它以及如何生成它： http://en.wikipedia.org/wiki/Luhn_algorithm [ ^ ]



它甚至包括必要的伪-code！



不仅如此，我们还做不到：你甚至没有说明你需要用哪种语言编码，所以我们不能提供比伪-code，即使我们想要。

Well, your question is tagged with the solution: Luhn coding.
And a very quick google take you to a description of what it is, how to check it and how to generate it: http://en.wikipedia.org/wiki/Luhn_algorithm[^]

It even includes the necessary pseudo-code!

More than that we cannot do: you don;t even specify what language you need to code it in, so we can't provide more than pseudo-code, even if we wanted to.

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