多加一个条件：IF(M6=N6="",IF(AND(H6>=84,H6<=86,I6>=84,I6<=86,J6>=84,J6<=86,K6<=83,K6>=81,L6<=83,L6>=81,M6<=83,M6>=81,N6>=81,N6<=83,O6>=90,O6<=92),"OK","NO"),"")
把M6>0 N6>6添加到AND里
