Question

您好，堆栈溢出用户！我对程序有疑问，也遇到了问题。我实际上已经完成了该程序，但是对于我的尺寸（火箭的宽度和长度），我似乎没有单独的void函数。我目前在我的void函数中创建了我的火箭，void绘制框，但是我似乎无法弄清楚如何为我的尺寸使用单独的void函数。有任何提示或我做错的事情可以解决此问题吗？感谢您的任何帮助，再次感谢！

    #include <iostream>

using namespace std;

void dimensions (int, int);
void drawBox (int , int , int);

int main ()
{
    int numXs, numSpaces, numRows, width, height;

    //dimensions (width, height);
    drawBox (numXs, numSpaces, numRows);

    return 0;
}

void dimensions (int width, int height)
{
    cout << "Enter width: ";
    cin >> width;
    cout << "Enter height: ";
    cin >> height;
    cout << endl;
}

void drawBox (int numXs, int numSpaces, int numRows)

{
    int count, rowCount, spaceCount, width, height;

    cout << "Enter width: ";
    cin >> width;
    cout << "Enter height: ";
    cin >> height;
    cout << endl;

    for (count = 0; count < width; count++)
            {    
                cout << "X";
            }
            cout << endl;

        for (rowCount = 0; rowCount < height; rowCount++)
            {    
                cout << "X";

                if ( width % 2 == 0)
                {
                    for (spaceCount = 0; spaceCount < width - 2; spaceCount++)
                    {    
                        cout << " ";
                    }
                    cout << "X" << endl;
                }

                else
                {
                    for (spaceCount = 0; spaceCount < width - 2; spaceCount++)
                    {    
                        cout << "X";
                    }
                    cout << "X" << endl;
                }
            }
            cout << "X";

        for (spaceCount = 0; spaceCount < numSpaces; spaceCount++)
            {    
                cout << " ";
            }

        for (count = 0; count < width - 1; count++)
            {    
                cout << "X";
            }
            cout << endl;       


    //second box is being created below

for (count = 0; count < width; count++)
        {    
            cout << "X";
        }
        cout << endl;

    for (rowCount = 0; rowCount < height; rowCount++)
        {    
            cout << "X";

            if ( width % 2 == 0)
            {
                for (spaceCount = 0; spaceCount < width - 2; spaceCount++)
                {    
                    cout << " ";
                }
                cout << "X" << endl;
            }

            else
            {
                for (spaceCount = 0; spaceCount < width - 2; spaceCount++)
                {    
                    cout << "X";
                }
                cout << "X" << endl;
            }
        }
        cout << "X";

    for (spaceCount = 0; spaceCount < numSpaces; spaceCount++)
        {    
            cout << " ";
        }

    for (count = 0; count < width - 1; count++)
        {    
            cout << "X";
        }
        cout << endl;
}

Answer 1

通过引用传递变量：

void dimensions(int& height, int& width)
{
    height = 5;
    width = -6; // Because int is signed, this is possible.
}

int main()
{
    int tall = -42;
    int length = 22;
    dimensions(tall, length);
    std::cout << "tall: " << tall << "\n";
    std::cout << "length: " << length << "\n";
    return 0;
}

Answer 2

您是否尝试过创建高度和宽度全局变量，以便可以在两个函数中使用它们？

C ++“太空飞船”

2 个答案: