ref(c,2)/ref(c,3)>1+n/100and ref(c,1)/ref(c,2)<1 and ref(vol,1)/ref(vol,2)>1.5and ref(c,0)/ref(c,1)>1 and ref(c,0)/ref(c,1)<1.02 and ref(vol,0)/ref(vol,1)<0.8;注：n默认是8。
这个很难啊
