1 #include "stdafx.h"
 2 #include <stdio.h>
 3 #include <winsock2.h>
 4 
 5 #pragma comment(lib,"ws2_32.lib")
 6 
 7 int main(int argc, char* argv[])
 8 {
 9     //初始化WSA
10     WORD sockVersion = MAKEWORD(2,2);
11     WSADATA wsaData;
12     if(WSAStartup(sockVersion, &wsaData)!=0)
13
 
     {
14         return 0;
15     }
16 
17     //建立套接字
18     SOCKET slisten = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
19     if(slisten == INVALID_SOCKET)
20     {
21         printf("socket error !");
22         return 0;
23     }
24 
25     //繫結IP和埠
26     sockaddr_in sin;
27     sin.sin_family = AF_INET;
 
28     sin.sin_port = htons(8888);
29     sin.sin_addr.S_un.S_addr = INADDR_ANY; 
30     if(bind(slisten, (LPSOCKADDR)&sin, sizeof(sin)) == SOCKET_ERROR)
31     {
32         printf("bind error !");
33     }
34 
35     //開始監聽
36     if(listen(slisten, 5) == SOCKET_ERROR)
37     {
38         printf("
 
listen error !");
39         return 0;
40     }
41 
42     //迴圈接收資料
43     SOCKET sClient;
44     sockaddr_in remoteAddr;
45     int nAddrlen = sizeof(remoteAddr);
46     char revData[255]; 
47     while (true)
48     {
49         printf("等待連線...\n");
50         sClient = accept(slisten, (SOCKADDR *)&remoteAddr, &nAddrlen);
51         if(sClient == INVALID_SOCKET)
52         {
53             printf("accept error !");
54             continue;
55         }
56         printf("接受到一個連線：%s \r\n", inet_ntoa(remoteAddr.sin_addr));
57         
58         //接收資料
59         int ret = recv(sClient, revData, 255, 0);        
60         if(ret > 0)
61         {
62             revData[ret] = 0x00;
63             printf(revData);
64         }
65 
66         //傳送資料
67         char * sendData = "你好，TCP客戶端！\n";
68         send(sClient, sendData, strlen(sendData), 0);
69         closesocket(sClient);
70     }
71     
72     closesocket(slisten);
73     WSACleanup();
74     return 0;
75 }