根据请求的URI和HTTP方法，获取相应的资源，如HTML文件、图片、CSS文件等。C语言 window

获取请求的URI和HTTP方法，可以通过解析HTTP请求头中的信息来实现。在Windows环境下，可以使用Winsock库来实现TCP套接字通信，使用WinAPI函数来读取请求头中的信息，使用C标准库函数来读取文件内容。

以下是一个简单的实现示例，仅供参考：

#include <stdio.h>
#include <winsock2.h>

#pragma comment(lib, "ws2_32.lib")

#define BUFFER_SIZE 1024

int main() {
    WSADATA wsaData;
    SOCKET listenSocket, clientSocket;
    struct sockaddr_in serverAddr, clientAddr;
    int serverPort = 80;
    int addrLen = sizeof(clientAddr);
    char buffer[BUFFER_SIZE], requestMethod[BUFFER_SIZE], requestUri[BUFFER_SIZE], filePath[BUFFER_SIZE];
    FILE *fp;

    // 初始化Winsock库
    if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0) {
        printf("Failed to initialize Winsock.\n");
        return 1;
    }

    // 创建TCP套接字
    if ((listenSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == INVALID_SOCKET) {
        printf("Failed to create socket.\n");
        WSACleanup();
        return 1;
    }

    // 绑定套接字到指定的IP地址和端口号
    memset(&serverAddr, 0, sizeof(serverAddr));
    serverAddr.sin_family = AF_INET;
    serverAddr.sin_addr.s_addr = htonl(INADDR_ANY);
    serverAddr.sin_port = htons(serverPort);
    if (bind(listenSocket, (struct sockaddr*)&serverAddr, sizeof(serverAddr)) == SOCKET_ERROR) {
        printf("Failed to bind socket.\n");
        closesocket(listenSocket);
        WSACleanup();
        return 1;
    }

    // 监听连接请求
    if (listen(listenSocket, SOMAXCONN) == SOCKET_ERROR) {
        printf("Failed to listen on socket.\n");
        closesocket(listenSocket);
        WSACleanup();
        return 1;
    }

    // 接受客户端连接请求
    while (1) {
        printf("Waiting for client connection...\n");
        if ((clientSocket = accept(listenSocket, (struct sockaddr*)&clientAddr, &addrLen)) == INVALID_SOCKET) {
            printf("Failed to accept client connection.\n");
            closesocket(listenSocket);
            WSACleanup();
            return 1;
        }

        // 读取HTTP请求头信息
        memset(buffer, 0, BUFFER_SIZE);
        recv(clientSocket, buffer, BUFFER_SIZE, 0);
        sscanf(buffer, "%s %s", requestMethod, requestUri);

        // 根据请求的URI和HTTP方法获取相应的资源
        if (strcmp(requestMethod, "GET") == 0) {
            if (strcmp(requestUri, "/") == 0) {
                strcpy(filePath, "index.html");
            } else {
                strcpy(filePath, requestUri + 1);
            }
            fp = fopen(filePath, "r");
            if (fp == NULL) {
                printf("Failed to open file %s.\n", filePath);
                closesocket(clientSocket);
                continue;
            }
            // 读取文件内容并发送HTTP响应
            memset(buffer, 0, BUFFER_SIZE);
            sprintf(buffer, "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n");
            send(clientSocket, buffer, strlen(buffer), 0);
            while (!feof(fp)) {
                memset(buffer, 0, BUFFER_SIZE);
                fread(buffer, 1, BUFFER_SIZE, fp);
                send(clientSocket, buffer, strlen(buffer), 0);
            }
            fclose(fp);
        } else {
            // 处理不支持的HTTP方法
            printf("Unsupported HTTP method: %s.\n", requestMethod);
            closesocket(clientSocket);
            continue;
        }

        // 关闭与客户端的连接
        closesocket(clientSocket);
    }

    // 关闭监听套接字
    closesocket(listenSocket);

    // 清理Winsock库
    WSACleanup();

    return 0;
}

该示例仅实现了获取请求的URI和HTTP方法以及根据请求的URI获取相应的资源，并发送HTTP响应的功能。实际应用中，还需要考虑并发连接请求、处理非法请求等问题。