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>" y# }3 p; F+ o8 m) ` P
#include<WinSock2.h>
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#pragma comment(lib,"ws2_32.lib")
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int main(){
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WSADATA wsd;
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SOCKET sockServer;8 {) l) a/ r, Q* q) {8 k
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0 L/ W. m! Y8 u9 q/ R' t- w0 u
SOCKET sockClient;
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SOCKADDR_IN clientaddr;; F w% \. B X* E T: {; V
WSAStartup(MAKEWORD(2,2),&wsd);//初始化网络接口
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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);
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}
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else{
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printf("Socket create failed.");; ~5 f" W; M4 E5 T8 R8 P7 ?
exit(0);
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}
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serveraddr.sin_addr.S_un.S_addr = htonl(INADDR_ANY);
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serveraddr.sin_family = AF_INET;
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serveraddr.sin_port = htons(6000);//绑定端口60001 K2 J F2 O8 Q5 E# U! V
int bindInfo = bind(sockServer, (SOCKADDR*)&serveraddr, sizeof(SOCKADDR));0 x- o3 J4 p1 C
char recvBuf[100];
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int len = sizeof(SOCKADDR);/ |0 M! K7 `4 R' o- o% k/ w0 c8 Q, `2 E
listen(sockServer, 5);//5为等待连接数
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while (1){! [. Q3 }7 Q8 e+ F4 n1 @5 ]2 h
sockClient = accept(sockServer, (SOCKADDR*)&clientaddr, &len);4 j7 I$ M ~& o3 c* g+ {6 T
//接收客户端数据$ j# Z z/ _& ^" n, E- v
recv(sockClient, recvBuf, strlen(recvBuf)+1, MSG_PEEK);* I0 p" n* n k! o! q/ I
printf("to me:%s\n",recvBuf);/ x8 j2 f: r& b) P
memset(recvBuf, 0, 100);) l0 W4 D$ ~+ w A1 b% t7 e
}
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closesocket(sockClient);5 M1 u+ Y# x5 m8 u) a
system("pause");( B, ~8 k3 t# z) J5 n9 D _
return 0;
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}

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#include<winsock2.h>1 B4 c# ]1 Y, @) J6 l& i
#include<stdio.h>
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#pragma comment(lib, "ws2_32.lib")7 s0 _+ W0 m6 ^
void main()
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{
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WSADATA wsaData;% z6 P; q, J3 @3 s1 b" e1 d
SOCKET sockClient;//客户端Socket
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SOCKADDR_IN addrServer;//服务端地址
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WSAStartup(MAKEWORD(2, 2), &wsaData);
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char message[20] = "HelloSocket!";2 }/ ?* `+ g, b& T
//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)0 J: B* _0 [! S
addrServer.sin_family = AF_INET;
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addrServer.sin_port = htons(6000);//连接端口6000
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//新建客户端socket5 K3 f5 |6 d( W' R
sockClient = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);' ~0 N4 b( i; v# ^& z
int s = 0;8 d$ V- k* g4 b# l8 b
s = connect(sockClient, (SOCKADDR*)&addrServer, sizeof(SOCKADDR));
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while (1){) D- E; C8 t1 S1 z) D/ t
//发送数据$ v' P" m1 p2 z9 Z+ g3 h) A9 J# J7 l! k
int a = send(sockClient, message, strlen(message) + 1, 0);
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printf("to server:");
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scanf("%s", message);/ }7 w' U4 |8 j( |
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//关闭socket" d; t: n& C ~( c- j! M& Q
closesocket(sockClient);
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WSACleanup();
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}

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