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开发环境:windows
开发工具:VC6.0
注意:由于我们使用的socket编程要使用到ws2_32.lib这个动态库,所以在我们编译之前要加上该动态库的连接
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服务器端的代码:
#include <Winsock2.h>
#include <stdio.h>
void main()
{
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD(1, 1);
err = WSAStartup(wVersionRequested, &wsaData);
if (err != 0) {
return;
}
if (LOBYTE(wsaData.wVersion) != 1 ||
HIBYTE(wsaData.wVersion) != 1) {
WSACleanup();
return;
}
SOCKET sockSrv = socket(AF_INET, SOCK_DGRAM, 0);
SOCKADDR_IN addrSrv;
addrSrv.sin_addr.S_un.S_addr = htonl(INADDR_ANY);
addrSrv.sin_family = AF_INET;
addrSrv.sin_port = htons(6000);
bind(sockSrv, (SOCKADDR*)&addrSrv, sizeof(SOCKADDR));
char recvBuf[100];
char sendBuf[100];
char temBuf[100];
SOCKADDR_IN addrClient;
int len = sizeof(SOCKADDR);
while (1)
{
recvfrom(sockSrv, recvBuf, 100, 0, (SOCKADDR*)&addrClient, &len);
if ('q' == recvBuf[0])
{
sendto(sockSrv, "q", strlen("q") + 1, 0, (SOCKADDR*)&addrClient, len);
printf("chat end !\n");
break;
}
sprintf(temBuf, "%s say %s", inet_ntoa(addrClient.sin_addr), recvBuf);
printf("%s\n", temBuf);
printf("please input data:\n");
gets(sendBuf);
sendto(sockSrv, sendBuf, strlen(sendBuf) + 1, 0, (SOCKADDR*)&addrClient, len);
}
closesocket(sockSrv);
WSACleanup();
}
#include <Winsock2.h>
#include <stdio.h>
void main()
{
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD(1, 1);
err = WSAStartup(wVersionRequested, &wsaData);
if (err != 0) {
return;
}
if (LOBYTE(wsaData.wVersion) != 1 ||
HIBYTE(wsaData.wVersion) != 1) {
WSACleanup();
return;
}
SOCKET sockClient = socket(AF_INET, SOCK_DGRAM, 0);
SOCKADDR_IN addrSrv;
addrSrv.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
addrSrv.sin_family = AF_INET;
addrSrv.sin_port = htons(6000);
char sendBuf[100];
char recvBuf[100];
char temBuf[200];
int len = sizeof(SOCKADDR);
while (1)
{
printf("plesae input data :\n");
gets(sendBuf);
sendto(sockClient, sendBuf, strlen(sendBuf) + 1, 0, (SOCKADDR*)&addrSrv, len);
recvfrom(sockClient, recvBuf, strlen(recvBuf), 0, (SOCKADDR*)&addrSrv, &len);
if ('q' == recvBuf[0])
{
sendto(sockClient, "q", strlen("q") + 1, 0, (SOCKADDR*)&addrSrv, len);
printf("chat end !");
break;
}
sprintf(temBuf, "%s say :%s", inet_ntoa(addrSrv.sin_addr), recvBuf);
printf("%s\n", temBuf);
printf("please input data:\n");
gets(sendBuf);
sendto(sockClient, sendBuf, strlen(sendBuf) + 1, 0, (SOCKADDR*)&addrSrv, len);
}
closesocket(sockClient);
WSACleanup();
}
在进行测试的时候,要先运行服务器端,再运行客户端,测试结果如下: