有两段代码运行不过去,提示错误 逻辑运算语句的左右值的数据类型必须属于BOOL类，在线老师帮帮忙

If(MarketPosition ==( 1 and Close[1])<(AvgEntryPrice - save*minpoint And BarsSinceEntry>0)) { Sell(lots,Open); Commentary("多单止损出场"); } If(MarketPosition==(-1 And Close[1])>(AvgEntryPrice + save*minpoint And BarsSinceEntry>0)) { BuyToCover(lots,Open); Commentary("空单止损出场"); }