#include<stdio.h> #include<winsock2.h>    //该头文件需在windows.h之前
#include<windows.h> #include<string> #include<iostream>
#pragma comment(lib,"ws2_32.lib") 
using namespace std; void getIP() { WSADATA WSAData; //WSADATA结构被用来储存调用AfxSocketInit全局函数返回的Windows Sockets初始化信息。
    if (WSAStartup(MAKEWORD(2, 0),&WSAData))        // 初始化Windows sockets API
 { printf("WSAStartup failed %s\n", WSAGetLastError()); exit(-1);        //异常退出 
 } char hostName[256]; if(gethostname(hostName,sizeof(hostName)))        //获取主机名
 { printf("Error: %u\n", WSAGetLastError()); exit(-1);        //异常退出 
 } printf("主机名： %s\n", hostName); hostent *host=gethostbyname(hostName);    // 根据主机名获取主机信息. 
    if(host==NULL) { printf("Error: %u\n", WSAGetLastError()); exit(-1); } cout<<"主机地址类型: "<<host->h_addrtype<<endl <<"地址清单: "<<host->h_addr_list<<endl <<"别名列表: "<<host->h_aliases<<endl <<"地址长度: "<<host->h_length<<endl <<"正式的主机名: "<<host->h_name<<endl; for(int i=0;host->h_addr_list[i]!=0;i++) { cout<<"该主机IP"<<i+1<<": "<<inet_ntoa(*(struct in_addr*)*host->h_addr_list)<<endl; } cout<<"-----------------------------------------------"<<endl; WSACleanup(); } void getSysInfo() { SYSTEM_INFO sysInfo; //该结构体包含了当前计算机的信息：计算机的体系结构、中央处理器的类型、系统中中央处理器的数量、页面的大小以及其他信息。
 OSVERSIONINFOEX osvi; GetSystemInfo(&sysInfo); osvi.dwOSVersionInfoSize=sizeof(osvi); if (GetVersionEx((LPOSVERSIONINFOW)&osvi)) { printf("操作系统版本 : %u.%u.%u\n", osvi.dwMajorVersion, osvi.dwMinorVersion,osvi.dwBuildNumber); printf("Service Pack : %u.%u\n", osvi.wServicePackMajor, osvi.wServicePackMinor); } printf("处理器架构 : %u\n", sysInfo.wProcessorArchitecture); printf("处理器级别 : %u\n", sysInfo.wProcessorLevel); printf("处理器版本 : %u\n", sysInfo.wProcessorRevision); printf("处理器掩码 : %u\n", sysInfo.dwActiveProcessorMask); printf("处理器数量 : %u\n", sysInfo.dwNumberOfProcessors); printf("处理器类型 : %u\n", sysInfo.dwProcessorType); printf("页面大小 : %u\n", sysInfo.dwPageSize); printf("应用程序最小地址 : %u\n", sysInfo.lpMinimumApplicationAddress); printf("应用程序最大地址 : %u\n", sysInfo.lpMaximumApplicationAddress); printf("虚拟内存分配粒度 : %u\n", sysInfo.dwAllocationGranularity); printf("OemId : %u\n", sysInfo.dwOemId); printf("wReserved : %u\n", sysInfo.wReserved); } int main() { getIP(); getSysInfo(); return 0; }