如何在C＃中打印出矩形值？

Question

export enum Decisions {
    approve = 'approve',
    reject = 'reject'
}

export type DecisionsTypeUnion =
    Decisions.approve |
    Decisions.reject;

if (decision in Decisions) {
  // valid
}

我要检查矩形坐标是否正确存储在数组中。但是我不知道如何打印出该值。

Answer 1

您必须访问要显示的属性：

foreach(System.Drawing.Rectangle rect in _rectangleList)
{
    MessageBox.Show($"X:{rect.X} Y:{rect.Y} Width:{rect.Width} Height:{rect.Height}");
}

您也可以在填充数组时简单地设置一个断点，并使用调试器检查其内容。如果使用的是Visual Studio，则可以将插入号放在数组上，然后按Shift-F9键查看内容（或从菜单中选择 Quick Watch ）。

Answer 2

在MessageBox中打印坐标：

MessageBox.Show("X:" + rect.Location.X + " Y:" + rect.Location.Y);

Answer 3

对于矩形高度，您必须说     矩形高度

Answer 4

You can create your own extension method on the rectangle that will print out all the details that you . 

Check my example here.

 public static class RectangleExtensions
    {
        public static string Details(this System.Drawing.Rectangle rectangle)
        {
            var details = new StringBuilder();
            details.AppendFormat("Height: {0}", rectangle.Height);
            details.AppendFormat("Bottom: {0}", rectangle.Bottom);
            details.AppendFormat("Left: {0}", rectangle.Left);
            details.AppendFormat("Right: {0}", rectangle.Right);

            return details.ToString();
        }
    }
    class Program
    {


        static void Main(string[] args)
        {
            var rectangle = new System.Drawing.Rectangle();


            Console.WriteLine(rectangle.Details());
        }
    }