条件选股公式

编写要求：

源码为：K1:100*(C-LLV(L,5))/(HHV(C,5)-LLV(L,5)),LINETHICK2,COLOR00FFFF;K2:100*(C-LLV(L,10))/(HHV(C,10)-LLV(L,10)),COLOR008000;K3:100*(C-LLV(L,20))/(HHV(C,20)-LLV(L,20)),COLORFF8000;K4:100*(C-LLV(L,30))/(HHV(C,30)-LLV(L,30)),LINETHICK2,COLORRED;弱市线:20,COLORGREEN;变盘线:50,COLORMAGENTA;强市线:80,COLORWHITE;麻烦老师帮忙做一个K4盘中突破50的预警，先谢谢了。（

解答：

K4:=100*(C-LLV(L,30))/(HHV(C,30)-LLV(L,30));