用vs写一个简单客户端代码
时间: 2023-04-06 11:04:52 浏览: 62
好的,以下是一个简单的客户端代码:
```c++
#include <iostream>
#include <winsock2.h>
#pragma comment(lib, "ws2_32.lib")
int main() {
// 初始化 Winsock
WSADATA wsaData;
if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0) {
std::cerr << "WSAStartup failed." << std::endl;
return 1;
}
// 创建 socket
SOCKET clientSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (clientSocket == INVALID_SOCKET) {
std::cerr << "socket failed." << std::endl;
WSACleanup();
return 1;
}
// 连接服务器
sockaddr_in serverAddr;
serverAddr.sin_family = AF_INET;
serverAddr.sin_port = htons(12345);
serverAddr.sin_addr.s_addr = inet_addr("127.0.0.1");
if (connect(clientSocket, (sockaddr*)&serverAddr, sizeof(serverAddr)) == SOCKET_ERROR) {
std::cerr << "connect failed." << std::endl;
closesocket(clientSocket);
WSACleanup();
return 1;
}
// 发送数据
const char* sendData = "Hello, server!";
if (send(clientSocket, sendData, strlen(sendData), 0) == SOCKET_ERROR) {
std::cerr << "send failed." << std::endl;
closesocket(clientSocket);
WSACleanup();
return 1;
}
// 接收数据
char recvData[1024];
int recvLen = recv(clientSocket, recvData, sizeof(recvData), 0);
if (recvLen == SOCKET_ERROR) {
std::cerr << "recv failed." << std::endl;
closesocket(clientSocket);
WSACleanup();
return 1;
}
recvData[recvLen] = '\0';
std::cout << "Received: " << recvData << std::endl;
// 关闭 socket
closesocket(clientSocket);
// 清理 Winsock
WSACleanup();
return 0;
}
```
希望能对你有所帮助!