访问.Net中的自定义配置部分

 <configSections>
   <section name="customConfig" type="System.Configuration.NameValueSectionHandler"/>
  </configSections>
 <customConfig>
    <add key="setting1" value="value1"/>
    <add key="setting2" value="value2"/>
  </customConfig>
</configuration>

var customConfig = ConfigurationManager.GetSection("customConfig") as NameValueCollection;
var setting1 = customConfig["setting1"];
var setting2 = customConfig["setting2"];

{
  "customConfig": {
    "setting1": "value1",
    "setting2": "value2"
  }
}

public class MyClass
{
    private readonly IConfiguration _configuration;

    public MyClass(IConfiguration configuration)
    {
        _configuration = configuration;
    }

    public void MyMethod()
    {
        var setting1 = _configuration["customConfig:setting1"];
        var setting2 = _configuration["customConfig:setting2"];
    }
}