condition1 = 藍箭頭[1] 且 藍箭頭[0] then buy 1 share next bar at market
condition2 = 藍箭頭[1] 且 紅箭頭[0] then sell 1 share next bar at market
condition3 = 紅箭頭[1] 且 紅箭頭[0] then sellshort 1 share next bar at market
condition4 = 紅箭頭[1] 且 藍箭頭[0] then buytocover 1 share next bar at market