socket tcp clinet最简单测试程序

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// testsocketclient.cpp : 定义控制台应用程序的入口点。 //   #include "stdafx.h"   #include <winsock2.h> #include <stdio.h>   #pragma comment(lib, "Ws2_32.lib") void main() {     //加载套接字库，版本协商     WORD wVersionRequired;     WSADATA wsaData;     int err;       //请求库     //WSAStartup( WORD wVersionRequired, WSADATA lpWSAData );     wVersionRequired = MAKEWORD(1, 1);     err = WSAStartup(wVersionRequired, &wsaData);       if (err != 0)     {         //不等于0就退出         return;     }       //高字节和低字节都不为1     if (LOBYTE(wsaData.wVersion) != 1 || HIBYTE(wsaData.wVersion) != 1)     {         WSACleanup();         return;     }     SOCKET sockClient = socket(AF_INET, SOCK_STREAM, 0);     //设定服务器的地址信息     SOCKADDR_IN addrSrv;     addrSrv.sin_addr.S_un.S_addr = inet_addr("10.10.22.105");     addrSrv.sin_family = AF_INET;     addrSrv.sin_port = htons(9099);     connect(sockClient, (SOCKADDR*)&addrSrv, sizeof(SOCKADDR));     label:     send(sockClient, "this is qiang ge", strlen("this is qiang ge") + 1, 0);     while (1)     {     char recvBuf[100];     recv(sockClient, recvBuf, 100, 0);     printf("%s\n", recvBuf);     int igoto = 0;     scanf_s("%d", &igoto);     if (igoto == 111)     goto label;     }     closesocket(sockClient);     WSACleanup();     system("PAUSE"); }