我这是 班门弄斧

Params
	Integer nMinutesBeforeClose(5); //收盘前5分钟
	Numeric CloseTime(0.150000); //指定每日收盘的时间
	
Vars
	 Global Array<Numeric> timePoint;

Events
	OnReady(){
		Range[0 : DataSourceSize - 1]{
			Numeric ret = DateTimeAdd(CurrentDate + CloseTime, - nMinutesBeforeClose * 60);
			if(ret < 0){
				ret = DateTimeAdd(CurrentDate + CloseTime, 86400 - nMinutesBeforeClose * 60);
			}
			ret = StringToTime(TimeToString(ret));
			ArrayPushBack(timePoint, ret);
			SetTriggerBarClose(timePoint);
		}
	}
    
	OnBarClose(ArrayRef<Integer> indexs){
		//这里执行 收盘前5分钟开仓
		Print(DateTimeToString(Date + timePoint[0]) + \" 开仓\");
	}

https://www.bilibili.com/video/BV1Gt4y1t7ET/?spm_id_from=333.999.0.0&vd_source=52c4d7e414b98b18704fd5ac77293032

https://www.tbquant.net/helper?navigate=tbfn&cid=1231

挺好