这PlotString代码为什么显示不全啊

If(MA5>MA10 AND MA5>MA5[1] AND MA10>MA10[1]) PlotString(“均线叉", "金叉", buyPrice, Red); else if(MA5<MA10 AND MA5>MA5[1] AND MA10>MA10[1]) PlotString("均线叉", "将金叉", buyPrice, YELLOW); else if(MA5<MA10 AND MA5<MA5[1] AND MA10<MA10[1]) PlotString("均线叉", "死叉", sellPrice, Green); else if(MA5>MA10 AND MA5<MA5[1] AND MA10<MA10[1]) PlotString("均线叉", "将死叉", sellPrice, Blue); else { PlotString("均线叉", "", buyPrice, Red); }这代码为什么显示不全啊 中间那段没有颜色的本来应该显示红色的