生成GUID没有连字符 [英] generating GUID without hyphen

问题描述

我使用下面的语句在我的代码

I am generating a GUID using the following statement in my code

byte[ ] keyBytes = Encoding.UTF8.GetBytes( Guid.NewGuid( ).ToString( ).Substring( 0, 12 ) );

不过，会生成一个GUID的时候，我发现它包含了连字符了。我怎么去生成只包含字母（大写和小写）和数字的GUID？我不想连字符。有人可以给我这样的想法？

But, when a GUID is generated, I find that it contains the hyphen character too. How do I go about in generating a GUID with only letters (upper case and lower case) and numbers? I do not want the hyphen. Can someone give me so idea?

推荐答案

请注意，你是在谈论一个GUID的（规范）的字符串表示。该GUID本身实际上是一个128位的整数值。

Note that you are talking about the (canonical) string representation of a Guid. The Guid itself is actually a 128-bit integer value.

您可以使用带有的 Guid.ToString（字符串） 超载​​。

You can use the "N" specifier with the Guid.ToString(String) overload.

Guid.NewGuid().ToString("N");

默认情况下字母都是小写。

By default letters are lowercase. A Guid with only uppercase letters can only be achieved by manually converting them all to uppercase, example:

Guid.NewGuid().ToString("N").ToUpper();

一个没有意义的。一个GUID字符串表示是十六进制的，因此总会（以及最有可能的），同时包含。

A guid with only either letter or digits makes no sense. A guid string representation is hexadecimal, and thus will always (well most likely) contain both.

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