windows c++响应按键程序

#include<iostream> #include <windows.h> using namespace std; enum { BLACK = 0, DARK_BLUE = 1, DARK_GREEN = 2, TEAL = 3, DARK_RED = 4, DARK_PURPLE = 5, GOLD = 6, GREY = 7, DARK_WHITE = 8, BLUE = 9, GREEN = 10, CYAN = 11, RED = 12, PURPLE = 13, YELLOW = 14, WHITE = 15 }; void SetColor(const int foreground, const int background) { int Color = foreground + (background * 16); HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE); SetConsoleTextAttribute(hConsole, Color); return; } void PlaceCursor(const int x, const int y) { HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE); COORD PlaceCursorHere; PlaceCursorHere.X = x; PlaceCursorHere.Y = y; SetConsoleCursorPosition(hConsole, PlaceCursorHere); return; } int main() { int UpArrow = 0; int DownArrow = 0; int LeftArrow = 0; int RightArrow = 0; PlaceCursor(15, 5); cout << "UP, DOWN, LEFT, RIGHT"; PlaceCursor(15, 7); SetColor(YELLOW, BLACK); cout << "Last key(s) pressed: 0, 0, 0, 0"; while (true) { /* Draw the box around: Last key(s) pressed */ PlaceCursor(14, 6); SetColor(WHITE, BLACK); cout << "谷赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤?"; PlaceCursor(14, 7); cout << "o"; PlaceCursor(46, 7); cout << "o"; PlaceCursor(14, 8); cout << "豕赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤赤?"; UpArrow = GetAsyncKeyState(VK_UP); DownArrow = GetAsyncKeyState(VK_DOWN); LeftArrow = GetAsyncKeyState(VK_LEFT); RightArrow = GetAsyncKeyState(VK_RIGHT); //if (UpArrow == 0 || DownArrow != 0 || LeftArrow != 0 || RightArrow != 0) { if (UpArrow == 0) { PlaceCursor(0, 0); SetColor(WHITE, BLACK); cout << "UP ARROW - "; SetColor(RED, BLACK); cout << "pressed\n"; PlaceCursor(36, 7); SetColor(RED, BLACK); cout << "0"; } else { PlaceCursor(0, 0); SetColor(WHITE, BLACK); cout << "UP ARROW - "; SetColor(GREEN, BLACK); cout << "pressed\n"; PlaceCursor(36, 7); SetColor(GREEN, BLACK); cout << "1"; } //if (DownArrow == 0 || UpArrow != 0 || LeftArrow != 0 || RightArrow != 0) { if (DownArrow == 0) { PlaceCursor(0, 1); SetColor(WHITE, BLACK); cout << "DOWN ARROW - "; SetColor(RED, BLACK); cout << "pressed\n"; PlaceCursor(39, 7); SetColor(RED, BLACK); cout << "0"; } else { PlaceCursor(0, 1); SetColor(WHITE, BLACK); cout << "DOWN ARROW - "; SetColor(GREEN, BLACK); cout << "pressed\n"; PlaceCursor(39, 7); SetColor(GREEN, BLACK); cout << "1"; } //if (LeftArrow == 0 || UpArrow != 0 || DownArrow != 0 || RightArrow != 0) { if (LeftArrow == 0) { PlaceCursor(0, 2); SetColor(WHITE, BLACK); cout << "LEFT ARROW - "; SetColor(RED, BLACK); cout << "pressed\n"; PlaceCursor(42, 7); SetColor(RED, BLACK); cout << "0"; } else { PlaceCursor(0, 2); SetColor(WHITE, BLACK); cout << "LEFT ARROW - "; SetColor(GREEN, BLACK); cout << "pressed\n"; PlaceCursor(42, 7); SetColor(GREEN, BLACK); cout << "1"; } //if (RightArrow == 0 || UpArrow != 0 || DownArrow != 0 || LeftArrow != 0) { if (RightArrow == 0) { PlaceCursor(0, 3); SetColor(WHITE, BLACK); cout << "RIGHT ARROW - "; SetColor(RED, BLACK); cout << "pressed\n"; PlaceCursor(45, 7); SetColor(RED, BLACK); cout << "0"; } else { PlaceCursor(0, 3); SetColor(WHITE, BLACK); cout << "RIGHT ARROW - "; SetColor(GREEN, BLACK); cout << "pressed\n"; PlaceCursor(45, 7); SetColor(GREEN, BLACK); cout << "1"; } Sleep(50); if (GetAsyncKeyState(VK_ESCAPE)) { exit(0); } } return 0; }