C#序列化的时候将实体进行驼峰命名（第一个首字母小写)

public class UserInfo
{
  [JsonProperty("id")]
  public int Id{ set; get; }
  [JsonProperty("userName")]
  public string UserName{ set; get; }
}

            var user = new UserInfo { UserName = "john", Id = 19 };
            var serializerSettings = new JsonSerializerSettings
            {
                // 设置为驼峰命名
                ContractResolver = new CamelCasePropertyNamesContractResolver()
            };
            var userStr = JsonConvert.SerializeObject(user, serializerSettings);

            var data = JsonConvert.DeserializeObject<UserInfo>(userStr);
     Console.WriteLine(data.UserName + "   " + data.Id);