C++_C判断Windows_Mac和Linux平台宏定义

#ifdef _WIN32
//define something for Windows (32-bit and 64-bit, this part is common)
#ifdef _WIN64
//define something for Windows (64-bit only)
#else
//define something for Windows (32-bit only)
#endif
#elif APPLE
#if TARGET_IPHONE_SIMULATOR
// iOS Simulator
#elif TARGET_OS_IPHONE
// iOS device
#elif TARGET_OS_MAC
// Other kinds of Mac OS
#elif ANDROID
// android
#elif linux
// linux
#elif unix // all unices not caught above
// Unix
#elif defined(_POSIX_VERSION)
// POSIX
#else
# error “Unknown”
#endif

    #ifdef Q_OS_WIN
    	qDebug()<<"windows";
	#endif

	#ifdef Q_OS_MAC
    	qDebug()<<"mac";
	#endif
    
	#ifdef Q_OS_LINUX
    	qDebug()<<"linux";
	#endif 

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