using AssetCloud.AssetCloudSDK;
// ...

var client = new AssetCloudClient(new AssetCloudConfig 
{
    AppKey = "(Your app key)",
    AppSecret = "(Your app secret)",
    BaseUrl = "http://platform.assetcloud.org.cn/dev-api",
});

var res = await client.GetAsync<object>("/asset-system/person/get/person/by/id",
    new Dictionary<string, object>
    {
        ["userId"] = "1"
    }
);
Console.WriteLine(res.ToString());