public class OperationCheckInActivityInfo : OperationBase
{
    public int ActType; // 活动类型，用于关联活动相关模块用，如签到、任务等
    public int CfgID;   // 活动时间表配置ID

    public override string ToDisplayTime()
    {
        var textBuilder = OperationTimeHepler.textBuilder;
        textBuilder.Length = 0;
        textBuilder.Append(startDate.ToDisplay(false));
        textBuilder.Append(" 00:00:00");
        if (startDate != endDate)
        {
            textBuilder.Append("-");
            textBuilder.Append(endDate.ToDisplay(false));
            textBuilder.Append(" 23:59:59");
        }
        return textBuilder.ToString();
    }


}