C++ 矩形绘制：空心或实心

#include using namespace std;

int main() { int height, width, solid; char symbol; cin >> height >> width >> symbol >> solid;

for (int i = 0; i < height; i++) {
    for (int j = 0; j < width; j++) {
        if (i == 0 || i == height - 1 || j == 0 || j == width - 1) {
            cout << symbol;
        } else if (solid == 1) {
            cout << symbol;
        } else {
            cout << ' ';
        }
    }
    cout << endl;
}

return 0;

}