C#生成连续的GUID

最新推荐文章于 2024-11-22 12:42:18 发布

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最新推荐文章于 2024-11-22 12:42:18 发布

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文章标签： c#

原文链接：http://www.cnblogs.com/vester/archive/2013/01/11/2856215.html

 1 using System.Runtime.InteropServices;
 2 
 3 public class SequentialGuid
 4 {
 5     [System.Runtime.InteropServices.DllImport("Rpcrt4", CallingConvention = CallingConvention.StdCall, SetLastError = true)]
 6     private static extern long UuidCreateSequential(ref System.Guid ptrGuid);
 7 
 8     public static System.Guid CreateGuid()
 9     {
10         System.Guid id = System.Guid.Empty;
11         long num = SequentialGuid.UuidCreateSequential(ref id);
12         if (0L != num)
13         {
14             return System.Guid.NewGuid();
15         }
16         return id;
17     }
18 }