10-命令行配置

1-创建一个dotnet core命令行应用程序

2- 安装 Microsoft.AspNetCore.All

3-增加启动参数

4-编写代码

using System;
using Microsoft.Extensions.Configuration;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello World!");
            var builder = new ConfigurationBuilder().
                AddCommandLine(args);

            var configuration = builder.Build();
            Console.WriteLine($"name is {configuration["name"]}");
            Console.WriteLine($"age is {configuration["age"]}");

            Console.ReadLine();

        }
    }
}

输出结果

5-增加dictionary

using System;
using Microsoft.Extensions.Configuration;
using System.Collections.Generic;
namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello World!");
            Dictionary<string, string> dict = new Dictionary<string, string>() {
                {"name","caicai" },
                {"age","18" }

            };
            var builder = new ConfigurationBuilder()
                .AddInMemoryCollection(dict)
                .AddCommandLine(args); //会优生使用args,如果args中没有则使用dict中的值

            var configuration = builder.Build();
            Console.WriteLine($"name is {configuration["name"]}");
            Console.WriteLine($"age is {configuration["age"]}");

            Console.ReadLine();

        }
    }
}

使用控制台测试数据