KD:=hhvbars(c,50)>LLVBARS(c,50) and c=llv(c,50);
PD:=ct;
KK:=hhvbars(c,50)<LLVBARS(c,50) and c=hhv(c,50);
PK:=ct;
平空:sellshort(pk and holding<0,0,THISCLOSE);
开多:buy(kd and holding=0,asset,NEXTOPEN);
平多:sell(pd and holding>0,0,THISCLOSE);
开空:buyshort(kk and holding=0,asset,NEXTOPEN);