//

        // 摘要:

        //     Creates a new System.DateTime object that has the same number of ticks as the

        //     specified System.DateTime, but is designated as either local time, Coordinated

        //     Universal Time (UTC), or neither, as indicated by the specified System.DateTimeKind

        //     value.

        //

        // 参数:

        //   value:

        //     A date and time.

        //

        //   kind:

        //     One of the enumeration values that indicates whether the new object represents

        //     local time, UTC, or neither.

        //

        // 返回结果:

        //     A new object that has the same number of ticks as the object represented by the

        //     value parameter and the System.DateTimeKind value specified by the kind parameter.

        public static DateTime SpecifyKind(DateTime value, DateTimeKind kind);

     result.StartTime = DateTime.SpecifyKind((DateTime)result.StartTime, DateTimeKind.Utc);

     result.EndTime = DateTime.SpecifyKind((DateTime)result.EndTime, DateTimeKind.Utc);