string jsonStr = JsonConvert.SerializeObject(data);
FileStream stream = new FileStream(@"C:\Users\YeChangZhong\Desktop\新建文件夹\aa.txt", FileMode.Create);//fileMode指定是读取还是写入
StreamWriter writer = new StreamWriter(stream);
writer.WriteLine("====================");
writer.WriteLine(jsonStr);
writer.WriteLine(data.CREATEUSERNAME);
writer.WriteLine(data.MODIFYUSERNAME);
writer.WriteLine("====================");
writer.Close();//释放内存
stream.Close();//释放内存