C#之扩展类，提供附加属性

C#之扩展类，提供附加属性

    /// 

    /// 为Form1注入一个方法
    /// 
    public static class MyFormExt
    {
        public static void Test(this Form1 form1)
        {
            MessageBox.Show("扩展Form类");
        }
    }

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApp11
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            Form1 form1 = new Form1();
            form1.Test();
        }
    }

    /// 

    /// 为Form1注入一个方法
    /// 
    public static class MyFormExt
    {
        public static void Test(this Form1 form1)
        {
            MessageBox.Show("扩展Form类");
        }
    }



}