C#入门：显示窗口

https://learn.microsoft.com/zh-cn/dotnet/api/system.windows.forms.form?view=windowsdesktop-10.0

hello.cs

using System.Windows.Forms;
using System.Drawing;

class Program {
    static void Main() {
	   Form form1 = new Form();   
	   Button button1 = new Button ();
	   Button button2 = new Button ();
	   button1.Text = "OK";   
	   button1.Location = new Point (10, 10);
	   button2.Text = "Cancel";   
	   button2.Location = new Point (button1.Left, button1.Height + button1.Top + 10);   
	   form1.Text = "My Dialog Box";   
	   form1.HelpButton = true;   
	   form1.FormBorderStyle = FormBorderStyle.FixedDialog;   
	   form1.MaximizeBox = false;   
	   form1.MinimizeBox = false;   
	   form1.AcceptButton = button1;   
	   form1.CancelButton = button2;   
	   form1.StartPosition = FormStartPosition.CenterScreen;
	   form1.Controls.Add(button1);   
	   form1.Controls.Add(button2);   
	   form1.ShowDialog();
    }
}

编译

C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc /target:exe /out:hello.exe hello.cs

运行

hello