如何获取最后一个错误(WSAGetLastError)？

#include <winsock2.h>
#include <ws2tcpip.h>
#include<stdio.h>

int main() {
    // 初始化Windows Sockets
    WSADATA wsaData;
    int result = WSAStartup(MAKEWORD(2, 2), &wsaData);
    if (result != 0) {
        printf("WSAStartup failed with error: %d\n", result);
        return 1;
    }

    // 创建套接字
    SOCKET sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    if (sock == INVALID_SOCKET) {
        printf("socket creation failed with error: %d\n", WSAGetLastError());
        WSACleanup();
        return 1;
    }

    // 连接到远程服务器
    sockaddr_in serverAddr;
    serverAddr.sin_family = AF_INET;
    serverAddr.sin_addr.s_addr = inet_addr("127.0.0.1");
    serverAddr.sin_port = htons(8080);

    result = connect(sock, (sockaddr*)&serverAddr, sizeof(serverAddr));
    if (result == SOCKET_ERROR) {
        printf("connect failed with error: %d\n", WSAGetLastError());
        closesocket(sock);
        WSACleanup();
        return 1;
    }

    // 关闭套接字
    closesocket(sock);

    // 清理Windows Sockets
    WSACleanup();

    return 0;
}