C++如何获取系统信息 C++获取IP地址、硬件信息等

#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; }