C++:在程序中获取全球唯一标识号(GUID或UUID)
Windows:使用CoCreateGuid函数(GUID)
#include <stdio.h> #define GUID_LEN 64 int main(int argc, char* argv[]) { char buffer[GUID_LEN] = { 0 }; GUID guid; if (CoCreateGuid(&guid)) { fprintf(stderr, "create guid error\n"); return -1; } _snprintf(buffer, sizeof(buffer), "%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]); printf("guid: %s\n", buffer); return 0; }
Linux:使用uuid_generate函数(UUID)
//编译命令:gcc atemp.c -o atemp -luuid
#include <uuid/uuid.h> int main() { uuid_t uu; int i; uuid_generate( uu ); for(i=0;i<16;i++) { printf("%02X-",uu[i]); } printf("\n"); return 0; }