使用正则表达式或运营商来解决2条件

问题描述

我想2定期EX pressions合并成1 OR运算符： |

I am trying to combine 2 regular expressions into 1 with the OR operator: |

我有一个检查一个字母后跟8位数的匹配：

I have one that checks for match of a letter followed by 8 digits:

Regex.IsMatch(s, "^[A-Z]\d{8}$")

我有另一种检查只需9个数字：

I have another that checks for simply 9 digits:

Regex.IsMatch(s, "^\d{9}$")

现在，而不是做的：

Now, Instead of doing:

If Not Regex.IsMatch(s, "^[A-Z]\d{8}$") AndAlso
   Not Regex.IsMatch(s, "^\d{9}$") Then 
    ...
End If

我想我可以简单地做：

I thought I could simply do:

If Not Regex.IsMatch(s, "^[A-Z]\d{8}|\d{9}$") Then
    ...
End If

显然我没有正确地结合两者，显然我在正规前pressions可怕。任何帮助将是非常美联社preciated。

Apparently I am not combining the two correctly and apparently I am horrible at regular expressions. Any help would be much appreciated.

对于那些想知道，我也采取了一眼 2的条​​件和更多的，我还抓我的头。

And for those wondering, I did take a glance at How to combine 2 conditions and more in regex and I am still scratching my head.

推荐答案

如何使用 ^ [A-Z0-9] \\ D {8} $ ？

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