C语言 socket 编写简单服务端客户端通信问题 - cncml手绘网

#include<stdlib.h>, {( A: I x5 n
#include<WinSock2.h>
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#pragma comment(lib,"ws2_32.lib")6 _5 T8 @) L8 ?3 _
int main(){6 x& j) _7 K9 c4 B- w( v/ s# `# g% b
WSADATA wsd;
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SOCKET sockServer;
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SOCKADDR_IN serveraddr;// 服务端套接字该结构中包含了要结合的地址和端口号
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SOCKET sockClient;
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SOCKADDR_IN clientaddr;: E1 R- V/ s' v" C/ ?( E
WSAStartup(MAKEWORD(2,2),&wsd);//初始化网络接口 K D2 g. X8 r5 O! o6 X
sockServer = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);//创建服务器socket
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if (sockServer != -1 && sockServer != INVALID_SOCKET){
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printf("Socket has been created :%d", sockServer);( Q! \ k ]: O% `
}
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else{
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printf("Socket create failed.");
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exit(0);
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serveraddr.sin_addr.S_un.S_addr = htonl(INADDR_ANY);
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serveraddr.sin_family = AF_INET;' A3 X0 N' z5 j) Z8 T
serveraddr.sin_port = htons(6000);//绑定端口6000
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int bindInfo = bind(sockServer, (SOCKADDR*)&serveraddr, sizeof(SOCKADDR));
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char recvBuf[100];
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int len = sizeof(SOCKADDR);/ w% J+ G4 \, Z5 ]: J1 j
listen(sockServer, 5);//5为等待连接数
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while (1){
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sockClient = accept(sockServer, (SOCKADDR*)&clientaddr, &len);4 Q+ ~- `4 g4 `$ h4 x
//接收客户端数据
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recv(sockClient, recvBuf, strlen(recvBuf)+1, MSG_PEEK);! h) w7 e+ m$ Z
printf("to me:%s\n",recvBuf); W2 L, Q4 o7 H# E: d; o
memset(recvBuf, 0, 100);
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closesocket(sockClient);7 o: f7 y* y0 b: B
system("pause");; C# G6 z; X9 I" Q6 ]3 B
return 0;
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}

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#include<winsock2.h>0 e% | K# ]3 m5 w! P4 `) P
#include<stdio.h>9 D$ i9 V' q' k3 F- L |
#pragma comment(lib, "ws2_32.lib")
void main()& |1 y4 x8 B2 ^: ]4 I' [+ J
{
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WSADATA wsaData;- H+ n0 F) @: }% g; F6 n2 T2 F
SOCKET sockClient;//客户端Socket
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SOCKADDR_IN addrServer;//服务端地址8 ~; g/ q: w$ q; O+ ^% c
WSAStartup(MAKEWORD(2, 2), &wsaData);1 n) M' C8 E x6 r9 P' ?# [
char message[20] = "HelloSocket!";
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//定义要连接的服务端地址
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addrServer.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");//目标IP(127.0.0.1是回送地址)( C m, r3 N" H* _ L+ |2 K y
addrServer.sin_family = AF_INET;
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addrServer.sin_port = htons(6000);//连接端口60007 D7 s( \9 k. H' F
//新建客户端socket
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sockClient = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);. ^" @3 b8 |+ J+ W
int s = 0;+ E. |" u# q2 Y/ v+ e
s = connect(sockClient, (SOCKADDR*)&addrServer, sizeof(SOCKADDR));
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while (1){
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//发送数据4 ?2 B1 o2 D8 y7 L6 W& e0 j% e
int a = send(sockClient, message, strlen(message) + 1, 0);! }. S" [) r" x' v2 q$ T
printf("to server:");' T% p1 Z' h( `) L
scanf("%s", message);* D- w" [; m3 F. {, Q5 c8 t
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} {, C* j5 u- t
//关闭socket+ ^" c) q7 p* ~0 A K \2 ]- v
closesocket(sockClient);) v" z0 `4 \8 R7 [) j$ G" C6 e
WSACleanup();
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}

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