老師請幫忙寫盈利回撤控平倉指令

參考：

(BKHIGH-BKPRICE)/BKPRICE>0.03&&C<=BKHIGH-(BKHIGH-BKPRICE)*0.28,SP;
(SKPRICE-SKLOW)/SKPRICE>0.03&&C>=SKLOW+(SKPRICE-SKLOW)*0.28,BP;