类与json字符串的转换

using Newtonsoft.Json; 

public class ReturnPermissionJson
{
public Guid PointId { get; set; }
public int TimsegId { get; set; }
}

//字符串转换为类

var data = JsonConvert.DeserializeObject<ReturnPermissionJson>("(String字符串)");

//类转换为字符串

var data1=JsonConvert.SerializeObject(data);