Question

我正在尝试从用户那里获取输入，以将x，y坐标设置为DrawEllipse函数，当我将值硬编码到其中时，它会在屏幕上绘制一个圆圈，但是当我尝试传递一个int来自用户的输入是无效的。

我正在尝试制作一个程序来响应用户的命令，例如用户可以输入“绘制形状x y”。当检测到空格时，将字符串拆分为一个字符串。

public partial class Form1 : Form
{
    String input;
    Bitmap drawOutput;

    String command, command2, command3;
    int x, y;

    public Form1()
    {
        InitializeComponent();

        drawOutput = new Bitmap(OutputBox.Size.Width, OutputBox.Size.Height);
        OutputBox.Image = drawOutput;
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        Graphics g;
        g = Graphics.FromImage(drawOutput);

        Pen mypen = new Pen(Color.Black);
        g.Clear(Color.White);
        g.Dispose();
    }

    private void CMDBox_TextChanged(object sender, EventArgs e)
    {
        input = CMDBox.Text;
    }

    private void ExecuteBtn_Click(object sender, EventArgs e)
    {
        String[] spilt = input.Split(' ');
        foreach (String words in spilt)
        {
            command = spilt[0];
            command2 = spilt[1];
            command3 = spilt[2];

            x = Int32.Parse(command2);
            y = Int32.Parse(command3);



            Graphics g;
            g = Graphics.FromImage(drawOutput);
            Pen pen = new Pen(Color.Black, 5);

            if (input == command)
            {
                g.DrawEllipse(pen, 0, 0, x, y);

                OutputBox.Image = drawOutput;

                g.Dispose();

            }
        }

    }
}

有人可以帮忙吗？

获取用户输入的参数，然后绘制C＃形状

0 个答案: