C++生成GUID

#include <objbase.h>#include <stdio.h> //--生成GUIDconst char* newGUID(){ static char buf[64] = {0}; 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[0], guid.Data4[1] , guid.Data4[2], guid.Data4[3], guid.Data4[4], guid.Data4[5] , guid.Data4[6], guid.Data4[7] ); } return (const char*)buf;} int main(int argc, char* argv[]){ //--COM CoInitialize(NULL); printf(newGUID()); printf("/r/n"); //--COM CoUninitialize(); return 0;}