播放器關鍵代碼（WINDOWS編程）

                        OPENFILENAME ofn;//類，對象
			char szFile[MAX_PATH];//存儲路徑的數組
			ZeroMemory(&ofn,sizeof(ofn));//將對象初始化
			ofn.lStructSize = sizeof(ofn);//對象長度
			ofn.lpstrFile = szFile;//文件路徑，即是哪個文件
			ofn.lpstrFile[0] = TEXT('\0');
			ofn.nMaxFile = sizeof(szFile);
			ofn.lpstrFilter = TEXT("ALL\0*.*\0mp3\0*.mp3\0");
			ofn.nFilterIndex = 1;
			ofn.lpstrFileTitle = NULL;
			ofn.nMaxFileTitle = 0;
			ofn.lpstrInitialDir = NULL;
			ofn.hwndOwner = hwnd;//自學能力、探索能力、猜測能力
			ofn.Flags = OFN_EXPLORER |OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
			GetOpenFileName(&ofn);
			TCHAR buf[300];
			GetShortPathName(szFile,buf,sizeof(buf));
			TCHAR str1[256];
			wsprintf(str1,"play %s",buf);
			mciSendString(str1,"",0,NULL);