推荐订阅源

using Microsoft.AspNetCore.Builder;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Options;
using Microsoft.Extensions.Primitives;
using System;
using System.Configuration;
using System.Threading;

namespace WpfLiBroker
{
    public class AppConfig
    {

        public static  Microsoft.Extensions.Configuration.IConfiguration config { get; private set; }
        private static DateTime last_changed_time = DateTime.MinValue;
        static AppConfig()
        {
              config = new ConfigurationBuilder()
             .SetBasePath(System.Environment.CurrentDirectory)
             .AddJsonFile("config.json", false, true)
             .Build();

            LoadData(); //测试此处可以不加  这里加上以防万一

            ChangeToken.OnChange(() => {
                var span = DateTime.Now - last_changed_time;
                last_changed_time = DateTime.Now;
                if (span < TimeSpan.FromSeconds(1)){

                    System.Diagnostics.Debug.WriteLine($"{DateTime.Now.ToLongTimeString()} config change do nothing！");
                    return config.GetReloadToken();
                }
                else
                {
                    System.Diagnostics.Debug.WriteLine($"{DateTime.Now.ToLongTimeString()} config change do something！");
                    //**********************************
                     LoadData();
                    //#######################################
                    var data = config.GetReloadToken();
                    return data;
                }
            }
            , ()=> { });// () => autoReset.Set()
        }

        private static void LoadData()
        {
            Account = config.GetSection("account").Get<Account>();
        }


        public static Account Account { get; private set; }
     
    }

    public class Account
    {
        public string login_code { get; set; }

        public string login_pwd  { get; set; }
    }
}

 配置文件：config.json

{
  "account": {
    "login_code": "code",
    "login_pwd": "pwd"
  }
}

主要实现了配置文件修改后 程序绑定的变量自动刷新