A:=IF(差 =1000 ,1000 ,IF(差 =平均价,平均价,差) ); 盈亏分水岭:FORCAST(FORCAST(A,31),10),linethick2,color009900; 上涨:IF(A 盈亏分水岭,A,盈亏分水岭),colorred; 下跌:IF(A 盈亏分水岭,A,盈亏分水岭),colorblue;