编写出一个能够用鼠标进行操作的C语言围棋程序

要编写一个能够用鼠标进行操作的围棋程序，需要用到图形界面库来实现，比如Windows平台上的WinAPI或者Qt等。

以下是一个使用WinAPI实现的示例代码：

#include <windows.h>

// 定义围棋棋盘大小和棋子大小
const int BOARD_SIZE = 19;
const int PIECE_SIZE = 30;

// 定义棋盘数组和当前下棋方
int board[BOARD_SIZE][BOARD_SIZE] = {0};
int current_player = 1;

// 定义窗口句柄和设备上下文
HWND hwnd;
HDC hdc;

// 画棋盘函数
void draw_board() {
    // 设置画笔颜色为黑色，线宽为2像素
    HPEN hpen = CreatePen(PS_SOLID, 2, RGB(0, 0, 0));
    SelectObject(hdc, hpen);
    
    // 画横线和竖线
    for (int i = 0; i < BOARD_SIZE; i++) {
        MoveToEx(hdc, PIECE_SIZE / 2, PIECE_SIZE / 2 + i * PIECE_SIZE, NULL);
        LineTo(hdc, PIECE_SIZE / 2 + (BOARD_SIZE - 1) * PIECE_SIZE, PIECE_SIZE / 2 + i * PIECE_SIZE);
        MoveToEx(hdc, PIECE_SIZE / 2 + i * PIECE_SIZE, PIECE_SIZE / 2, NULL);
        LineTo(hdc, PIECE_SIZE / 2 + i * PIECE_SIZE, PIECE_SIZE / 2 + (BOARD_SIZE - 1) * PIECE_SIZE);
    }
    
    // 画星位
    int star_points[] = {3, 3, 9, 3, 15, 3, 3, 9, 9, 9, 15, 9, 3, 15, 9, 15, 15, 15};
    for (int i = 0; i < 9; i++) {
        int x = star_points[i * 2];
        int y = star_points[i * 2 + 1];
        Ellipse(hdc, PIECE_SIZE / 2 + x * PIECE_SIZE - 4, PIECE_SIZE / 2 + y * PIECE_SIZE - 4,
            PIECE_SIZE / 2 + x * PIECE_SIZE + 4, PIECE_SIZE / 2 + y * PIECE_SIZE + 4);
    }
    
    DeleteObject(hpen);
}

// 画棋子函数
void draw_piece(int x, int y, int player) {
    // 根据当前下棋方设置棋子颜色
    COLORREF color = player == 1 ? RGB(0, 0, 0) : RGB(255, 255, 255);
    
    // 画实心圆形
    HBRUSH hbrush = CreateSolidBrush(color);
    SelectObject(hdc, hbrush);
    Ellipse(hdc, PIECE_SIZE / 2 + x * PIECE_SIZE - PIECE_SIZE / 2, PIECE_SIZE / 2 + y * PIECE_SIZE - PIECE_SIZE / 2,
        PIECE_SIZE / 2 + x * PIECE_SIZE + PIECE_SIZE / 2, PIECE_SIZE / 2 + y * PIECE_SIZE + PIECE_SIZE / 2);
    DeleteObject(hbrush);
}

// 处理鼠标消息函数
void handle_mouse_message(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) {
    if (message == WM_LBUTTONDOWN) {
        // 鼠标左键按下事件，获取当前鼠标位置
        int x = LOWORD(lParam) / PIECE_SIZE;
        int y = HIWORD(lParam) / PIECE_SIZE;
        
        if (x >= 0 && x < BOARD_SIZE && y >= 0 && y < BOARD_SIZE && board[x][y] == 0) {
            // 如果当前位置合法且未下过棋子，则在当前位置下棋
            board[x][y] = current_player;
            draw_piece(x, y, current_player);
            
            // 切换下棋方
            current_player = 3 - current_player;
        }
    }
}

// 窗口消息处理函数
LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) {
    switch (message) {
        case WM_CREATE: {
            // 获取设备上下文
            hdc = GetDC(hwnd);
            draw_board();
            break;
        }
        case WM_PAINT: {
            // 重绘窗口
            PAINTSTRUCT ps;
            BeginPaint(hwnd, &ps);
            EndPaint(hwnd, &ps);
            break;
        }
        case WM_DESTROY: {
            // 释放设备上下文并关闭窗口
            ReleaseDC(hwnd, hdc);
            PostQuitMessage(0);
            break;
        }
        default: {
            // 处理鼠标消息
            handle_mouse_message(hwnd, message, wParam, lParam);
            break;
        }
    }
    return DefWindowProc(hwnd, message, wParam, lParam);
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) {
    // 注册窗口类
    WNDCLASS wc = {0};
    wc.lpfnWndProc = WndProc;
    wc.hInstance = hInstance;
    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW);
    wc.lpszClassName = TEXT("MyApp");
    RegisterClass(&wc);
    
    // 创建窗口
    hwnd = CreateWindowEx(0, TEXT("MyApp"), TEXT("My Window"), WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
        NULL, NULL, hInstance, NULL);
    ShowWindow(hwnd, nCmdShow);
    
    // 消息循环
    MSG msg = {0};
    while (GetMessage(&msg, NULL, 0, 0)) {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    
    return 0;
}

这个程序使用了WinAPI来创建窗口，并在窗口中实现了围棋棋盘和棋子的绘制。可以通过鼠标左键进行下棋操作。