如何检测 C 控制台应用程序中的箭头键按下情况？

#include <conio.h>
#include <iostream>
using namespace std;

#define KEY_UP 72
#define KEY_DOWN 80
#define KEY_LEFT 75
#define KEY_RIGHT 77

int main() {
    int c = 0;
    while (1) {
        c = 0;

        switch ((c = getch())) {
        case KEY_UP:
            cout << "Up" << endl;
            break;
        case KEY_DOWN:
            cout << "Down" << endl;
            break;
        case KEY_LEFT:
            cout << "Left" << endl;
            break;
        case KEY_RIGHT:
            cout << "Right" << endl;
            break;
        default:
            cout << "null" << endl;
            break;
        }
    }
    return 0;
}