subdivision method

Topic description  

The Program class is divided into two parts by the partial modifier. A partial method is defined in the first part and referenced in the other part. (console application)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace partial method
{
    public partial class Program
    {
        //declare and define a partial class
        //Declare the partial method, the default is private, or you can add private manually
        partial void Write();//声明
        partial void Write()//定义
        {
            Console.WriteLine("This is a partial method");
        }
    }
    public partial class Program
    {
        static void Main(string[] args)
        {
            Program p = new Program();
            p.Write();
        }
    }
}

***Partial method: the method declaration contains the partial modifier

Partial methods must be declared in the distribution class or part structure and must be private

Partial methods have severe limitations

1> The method must return void, only private by default

2> Partial methods cannot be virtual and extern 

3> Partial methods can have ref parameters, but not out parameters