#include <objbase.h>

 #include <stdio.h>

 //--生成GUID

 const char* newGUID()

 {

     static char buf[] = {};

     GUID guid;

     if (S_OK == ::CoCreateGuid(&guid))

     {

         _snprintf(buf, sizeof(buf)

             , "%08X-%04X-%04x-%02X%02X-%02X%02X%02X%02X%02X%02X"

             , guid.Data1

             , guid.Data2

             , guid.Data3

             , guid.Data4[], guid.Data4[]

         , guid.Data4[], guid.Data4[], guid.Data4[], guid.Data4[]

         , guid.Data4[], guid.Data4[]

         );

     }

     return (const char*)buf;

 }

 int main(int argc, char* argv[])

 {

     //--COM

     CoInitialize(NULL);

     printf(newGUID());

     printf("\r\n");

     //--COM

     CoUninitialize();

     return ;

 }