如何知道我输入的卡片类型 [英] How to know what card type I enterd

问题描述

嗨小伙伴们

hi guys

how to do ,a user entered card number you should able to detect which type of card it is. is it master card , visa card or american express card

我的尝试：



i尝试但是走向错误的方向请帮忙！

What I have tried:

i try but going in wrong direction please help!

推荐答案

一个非常简单的Google会让你这样： [ ^ ] - 这是微不足道的Google中的第一个链接。



将来请尽量自己做至少基础研究，不要浪费你的时间或我们的时间。

A very simple Google would have got you this: How to correctly detect credit card type[^] - it was the first link in a trivial Google.

In future, please try to do at least basic research yourself, and not waste your time or ours.

这篇关于如何知道我输入的卡片类型的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！