GetSystemInfo 和 GlobalMemoryStatus獲取系統信息，內存信息

// GetSystemInfo.cpp : 定義控制台應用程序的入口點。
//

#include "stdafx.h"
#include <iostream>
#include <windows.h>
#include <iomanip>
using namespace std;
int main()
{
	SYSTEM_INFO systemInfo;
	GetSystemInfo(&systemInfo);
	cout << setw(20) << "處理器掩碼: " << systemInfo.dwActiveProcessorMask << endl
		<< setw(20) << "處理器個數: " << systemInfo.dwNumberOfProcessors << endl
		<< setw(20) << "處理器分頁大小: " << systemInfo.dwPageSize << endl
		<< setw(20) << "處理器類型: " << systemInfo.dwProcessorType << endl
		<< setw(20) << "最大尋址單元: " << systemInfo.lpMaximumApplicationAddress << endl
		<< setw(20) << "最小尋址單元: " << systemInfo.lpMinimumApplicationAddress << endl
		<< setw(20) << "處理器等級: " << systemInfo.wProcessorLevel << endl
		<< setw(20) << "處理器版本: " << systemInfo.wProcessorRevision << endl;
	return 0;
}

　　

// GlobalMemoryStatus.cpp : 定義控制台應用程序的入口點。
//

#include "stdafx.h"
#include <Windows.h>
#include <iostream>
using namespace std;


int main()
{
	MEMORYSTATUS ms;     //記錄內容空間信息的結構體變量
	GlobalMemoryStatus(&ms);//調用GlobalMemoryStatus()函數獲取內存信息
	cout << "total physical mem:" << (float)ms.dwTotalPhys / 1024 / 1024 << "MB" << endl;    //總的物理內存大小
	cout << "used physical mem:" << (float)(ms.dwTotalPhys - ms.dwAvailPhys) / 1024 / 1024 << "MB" << endl;  //已用物理內存大小
	cout << "avilible physical mem:" << (float)ms.dwAvailPhys / 1024 / 1024 << "MB" << endl;     //可用物理內存大小
	cout << endl;
	cout << "total Virtual mem:" << (float)ms.dwTotalVirtual / 1024 / 1024 << "MB" << endl;  //總的虛擬內存大小
	cout << "used Virtual mem:" << (float)(ms.dwTotalVirtual - ms.dwAvailVirtual) / 1024 / 1024 << "MB" << endl;   //已用虛擬內存大小
	cout << "avilible Virtual mem:" << (float)ms.dwAvailVirtual / 1024 / 1024 << "MB" << endl;   //可用虛擬內存大小
    return 0;
}