MBase（基础）
```language
/// <summary>
/// 基础实体类
/// </summary>
[JsonObject(MemberSerialization.OptOut)]
public class MBase
{
/// <summary>
/// 序号 自动增长ID
/// </summary>
public int Id { get; set; }
/// <summary>
/// 创建人
/// </summary>
[JsonIgnore]
public string AddUserName { get; set; }
/// <summary>
/// 创建日期
/// </summary>
[JsonIgnore]
public DateTime AddDate { get; set; }
/// <summary>
/// 更新人
/// </summary>
[JsonIgnore]
public string UpdateUserName { get; set; }
/// <summary>
/// 更新日期
/// </summary>
public DateTime? UpdateDate { get; set; }
}
```