1.08 配置框架：让服务无缝适应各种环境

1.8 配置框架：让服务无缝适应各种环境.pdf

static void Main(string[] args)
{
    IConfigurationBuilder builder = new ConfigurationBuilder();
    // 注入内存配置源
    builder.AddInMemoryCollection(new Dictionary<string, string>()
    {
        { "key1","value1" },
        { "key2","value2" },
        // 使用 : 作为 section 分隔符
        { "section1:key4","value4" },
        { "section2:key5","value5" },
        { "section2:key6","value6" },
        { "section2:section3:key7","value7" }
    });
    // 构建配置，并将其付给配置根
    IConfigurationRoot configurationRoot = builder.Build();
    ///IConfiguration config = configurationRoot;
    Console.WriteLine(configurationRoot["key1"]);
    Console.WriteLine(configurationRoot["key2"]);
    IConfigurationSection section = configurationRoot.GetSection("section1");
    Console.WriteLine($"key4:{section["key4"]}");
    Console.WriteLine($"key5:{section["key5"]}");
    IConfigurationSection section2 = configurationRoot.GetSection("section2");
    Console.WriteLine($"key5_v2:{section2["key5"]}");
    var section3 = section2.GetSection("section3");
    Console.WriteLine($"key7:{section3["key7"]}");
}