我更新啦！纯手工编写C++画图，有注释！

感谢Ttcoffee提的建议（私聊） 本次更新内容：

        新增两个按钮，操作更易上手

        以及......................................一个失败内容（屏幕不刷新，我已不指望了）

#include <windows.h> #include <gdiplus.h> using namespace std; HWND hButton,hButton2; POINT g_startPos, g_endPos; RECT g_originalRect; LONG_PTR g_originalStyle; bool g_isFullscreen = false; HBITMAP g_hMemBitmap = NULL; HDC g_hMemDC = NULL; int g_width = 0, g_height = 0; // 初始化双缓冲 void InitDoubleBuffer(HWND hwnd) { RECT rc; GetClientRect(hwnd, &rc); g_width = rc.right - rc.left; g_height = rc.bottom - rc.top; HDC hdc = GetDC(hwnd); g_hMemDC = CreateCompatibleDC(hdc); g_hMemBitmap = CreateCompatibleBitmap(hdc, g_width, g_height); SelectObject(g_hMemDC, g_hMemBitmap); ReleaseDC(hwnd, hdc); // 初始清屏（可选） FillRect(g_hMemDC, &rc, (HBRUSH)GetStockObject(WHITE_BRUSH)); } // 切换全屏函数 void ToggleFullscreen(HWND hwnd) { if (!g_isFullscreen) { // 进入全屏 GetWindowRect(hwnd, &g_originalRect); g_originalStyle = GetWindowLongPtr(hwnd, GWL_STYLE); int screenWidth = GetSystemMetrics(SM_CXSCREEN); int screenHeight = GetSystemMetrics(SM_CYSCREEN); SetWindowLongPtr(hwnd, GWL_STYLE, WS_POPUP); SetWindowPos(hwnd, HWND_TOP, 0, 0, screenWidth, screenHeight, SWP_FRAMECHANGED | SWP_SHOWWINDOW ); } else { // 退出全屏 SetWindowLongPtr(hwnd, GWL_STYLE, g_originalStyle); SetWindowPos(hwnd, NULL, g_originalRect.left, g_originalRect.top, g_originalRect.right - g_originalRect.left, g_originalRect.bottom - g_originalRect.top, SWP_FRAMECHANGED | SWP_NOZORDER ); } g_isFullscreen = !g_isFullscreen; } // 窗口过程函数 LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) { switch (msg) { case WM_SIZE: // 窗口大小变化时重置缓冲 if (g_hMemDC) { DeleteDC(g_hMemDC); DeleteObject(g_hMemBitmap); } InitDoubleBuffer(hwnd); break; case WM_KEYDOWN: if (wParam == VK_BACK) { // 按Backspace切换全屏 ToggleFullscreen(hwnd); } else if (wParam == VK_CONTROL) { DestroyWindow(hwnd); HWND hwnwd; hwnwd = FindWindow("ConsoleWindowClass", NULL); if (hwnwd) { ShowOwnedPopups(hwnwd, SW_SHOW); ShowWindow(hwnwd, SW_SHOW); } } return 0; case WM_PAINT: { // 窗口需要绘制时触发 PAINTSTRUCT ps; HDC hdc = BeginPaint(hwnd, &ps); // 获取设备上下文 // 设置背景模式为透明 BitBlt(hdc, 0, 0, g_width, g_height, g_hMemDC, 0, 0, SRCCOPY); SetBkMode(hdc, TRANSPARENT); HPEN hDashPen = CreatePen(PS_DASH, 1, RGB(256, 256, 256)); SelectObject(hdc, hDashPen); MoveToEx(hdc, g_startPos.x, g_startPos.y, NULL); LineTo(hdc, g_endPos.x, g_endPos.y); return 0; } case WM_CLOSE: break; case WM_DESTROY: break; // 处理鼠标消息 case WM_LBUTTONDOWN: g_startPos.x = LOWORD(lParam); g_startPos.y = HIWORD(lParam); return 0; case WM_MOUSEMOVE: if (wParam & MK_LBUTTON) { g_endPos.x = LOWORD(lParam); g_endPos.y = HIWORD(lParam); InvalidateRect(hwnd, NULL, TRUE); } return 0; case WM_ERASEBKGND: return 1; // 禁用背景擦除 default: return DefWindowProc(hwnd, msg, wParam, lParam); case WM_CREATE: { // 创建按钮 hButton = CreateWindow( "BUTTON", // 窗口类（按钮） "点击我关闭", // 按钮文本 WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON, // 样式 50, 50, // 位置 (x, y) 100, 30, // 大小 (宽度, 高度) hwnd, // 父窗口句柄 (HMENU)1, // 控件ID ((LPCREATESTRUCT)lParam)->hInstance, // 实例句柄 NULL // 附加数据 ); hButton2 = CreateWindow( "BUTTON", // 窗口类（按钮） "点击我切换全屏", // 按钮文本 WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON, // 样式 850, 50, // 位置 (x, y) 100, 30, // 大小 (宽度, 高度) hwnd, // 父窗口句柄 (HMENU)2, // 控件ID ((LPCREATESTRUCT)lParam)->hInstance, // 实例句柄 NULL // 附加数据 ); return 0; } case WM_COMMAND: { int ButtonID=LOWORD(wParam); switch(ButtonID){ case 1: DestroyWindow(hwnd); HWND hwnwd; hwnwd = FindWindow("ConsoleWindowClass", NULL); if (hwnwd) { ShowOwnedPopups(hwnwd, SW_SHOW); ShowWindow(hwnwd, SW_SHOW); } break; case 2: ToggleFullscreen(hwnd); break; } return 0; } } return 0; } int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE, LPSTR pCmdLine, int nCmdShow) { HWND hwnwd; hwnwd = FindWindow("ConsoleWindowClass", NULL); if (hwnwd) { ShowOwnedPopups(hwnwd, SW_HIDE); ShowWindow(hwnwd, SW_HIDE); } const char* CLASS_NAME = "CustomWindowClass"; WNDCLASS wc = {}; wc.lpfnWndProc = WndProc; wc.hInstance = hInstance; wc.lpszClassName = TEXT(CLASS_NAME); wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1); if (!RegisterClass(&wc)) return 0; // 创建窗口 HWND hwnd = CreateWindowEx( 0, // 扩展样式 TEXT(CLASS_NAME), // 窗口类 " 绘画", // 窗口标题 WS_OVERLAPPEDWINDOW | WS_VISIBLE, // 窗口样式 CW_USEDEFAULT, CW_USEDEFAULT, // 位置 1000, 1000, // 大小 NULL, // 父窗口 NULL, // 菜单 hInstance, // 实例句柄 NULL // 附加数据 ); if (!hwnd) return 0; // 消息循环 MSG msg = {}; while (GetMessage(&msg, NULL, 0, 0)) { TranslateMessage(&msg); DispatchMessage(&msg); } return 0; }

和之前一样，附录也是有的。

先一键三连

#include <windows.h> // 全局变量存储按钮句柄 HWND hButton,hhh2; // 窗口过程函数 LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) { switch (msg) { case WM_CREATE: { // 创建按钮 hButton = CreateWindow( "BUTTON", // 窗口类（按钮） "点击我", // 按钮文本 WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON, // 样式 50, 50, // 位置 (x, y) 100, 30, // 大小 (宽度, 高度) hwnd, // 父窗口句柄 (HMENU)1, // 控件ID ((LPCREATESTRUCT)lParam)->hInstance, // 实例句柄 NULL // 附加数据 ); // 创建按钮 hhh2 = CreateWindow( "BUTTON", // 窗口类（按钮） "点击我", // 按钮文本 WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON, // 样式 150, 50, // 位置 (x, y) 100, 30, // 大小 (宽度, 高度) hwnd, // 父窗口句柄 (HMENU)1, // 控件ID ((LPCREATESTRUCT)lParam)->hInstance, // 实例句柄 NULL // 附加数据 ); return 0; } case WM_COMMAND: { // 处理按钮点击 if (LOWORD(wParam) == 1) { // 控件ID为1 MessageBox(hwnd, "按钮被点击了！", "提示", MB_OK); Sleep(1000); } return 0; } case WM_CLOSE: DestroyWindow(hwnd); break; case WM_DESTROY: PostQuitMessage(0); break; default: return DefWindowProc(hwnd, msg, wParam, lParam); } return 0; } // WinMain 函数 int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { const char CLASS_NAME[] = "MyWindowClass"; WNDCLASS wc = {}; wc.lpfnWndProc = WndProc; wc.hInstance = hInstance; wc.lpszClassName = CLASS_NAME; wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1); if (!RegisterClass(&wc)) return 0; HWND hwnd = CreateWindowEx( 0, CLASS_NAME, "按钮示例", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 400, 300, NULL, NULL, hInstance, NULL ); if (!hwnd) return 0; ShowWindow(hwnd, nCmdShow); UpdateWindow(hwnd); MSG msg; while (GetMessage(&msg, NULL, 0, 0)) { TranslateMessage(&msg); DispatchMessage(&msg); } return 0; }

一个非常非常简单的按钮实例

对了，线上之星期间（虽然结束了）但关注我的，并找我私聊，可以拉票（可以预约）

还有，想要关注的，直接关注我，一天内回关

还有一期清理缓存的，也是直接上代码

#include <bits/stdc++.h> #include <conio.h> #include <windows.h> using namespace std; void ClearCache() { printf("缓存清理中.\n"); Sleep(300); system("cls"); printf("缓存清理中..\n"); Sleep(300); system("cls"); printf("缓存清理中...\n"); Sleep(300); system("cls"); printf("缓存清理中.\n"); Sleep(300); system("cls"); printf("缓存清理中..\n"); Sleep(300); system("cls"); printf("缓存清理中...\n"); Sleep(300); system("cls"); printf("缓存清理中.\n"); Sleep(300); system("cls"); printf("缓存清理中..\n"); Sleep(300); system("cls"); printf("缓存清理中...\n"); Sleep(300); system("cls"); printf("缓存清理完毕\n"); } void UpSpeed() { srand(time(0)); printf("加速中.\n"); Sleep(300); system("cls"); printf("加速中..\n"); Sleep(300); system("cls"); printf("加速中...\n"); int MB = rand() % 1023 + 1; int KB = rand() % 1024; printf("已经腾出了%d MB %d KB空间", MB, KB); } void ClearVirus() { srand(time(0)); printf("查找病毒中.\n"); Sleep(300); system("cls"); printf("查找病毒中..\n"); Sleep(300); system("cls"); printf("查找病毒中...\n"); system("cls"); if (rand() % 2 == 0) { string s = ""; for (int i = 0; i < rand() % 10 + 1; i++) { char pp = 'a' + rand() % 26; s = s + pp; } printf("发现病毒 "); for (int i = 0; i < s.size(); i++) { cout << s[i]; } printf(".exe,是否清理? 1.Yes 2.No\n"); char c = getch(); if (c == '1') { printf("清理病毒中.\n"); Sleep(300); system("cls"); printf("清理病毒中..\n"); Sleep(300); system("cls"); printf("清理病毒中...\n"); Sleep(300); system("cls"); printf("清理病毒中.\n"); Sleep(300); system("cls"); printf("清理病毒中..\n"); Sleep(300); system("cls"); printf("清理病毒中...\n"); Sleep(300); system("cls"); printf("清理病毒完成\n"); return; } else { printf("请按任意键继续\n"); return; } } else { printf("未发现病毒\n"); return; } } int main() { while (1) { cout << "1.清理缓存" << endl; cout << "2.加速" << endl; cout << "3.查杀病毒" << endl; [[maybe_unused]] char c = getch(); switch (c) { case '1': system("cls"); ClearCache(); getch(); system("cls"); break; case '2': system("cls"); UpSpeed(); getch(); system("cls"); break; case '3': system("cls"); ClearVirus(); getch(); system("cls"); break; default: break; } system("cls"); } }

作者亲测

（|-呜呜呜，好亏啊-|)

最后，我还要给大家上一期字符串操作的代码

#include<bits/stdc++.h> #include<conio.h> using namespace std; struct Cstring { private: string s; void PrivateRes() { s = ""; } void PrivateCsinsert() { cout << "S:" << s << endl; int n; cin >> n; n = n - 1; char c; string m; for (int i = 0; i <= n - 1; i++) { c = s[i]; m += c; } string ss; cin >> ss; m += ss; for (int i = n; i < s.size(); i++) { m += s[i]; } s = m; } void PrivatesetCs() { string sss; cin >> sss; s = sss; } void PrivatePrintCs() { cout << s << endl; } int PrivateCsSize() { return s.size(); } public: void ReS() { system("cls"); cout << "Clear:" << endl; PrivateRes(); system("pause"); } void Csinsert() { system("cls"); cout << "Insert:" << endl; PrivateCsinsert(); system("pause"); } void SetCs() { system("cls"); cout << "Set:" << endl; PrivatesetCs(); system("pause"); } void printCs() { system("cls"); cout << "Print:" << endl; PrivatePrintCs(); system("pause"); } void printSizeCs() { system("cls"); cout << "Size:" << endl; cout<<PrivateCsSize()<<endl; system("pause"); } }; int main() { Cstring Cs; while (1) { cout << "1.clear" << endl; cout << "2.insert" << endl; cout << "3.set" << endl; cout << "4.print" << endl; cout << "5.get size" << endl; char pp; pp = getch(); switch (pp) { case '1': Cs.ReS(); break; case '2': Cs.Csinsert(); break; case '3': Cs.SetCs(); break; case '4': Cs.printCs(); break; case '5': Cs.printSizeCs(); break; default: break; } system("cls"); } }

一键三连！！