count(O2[!0]{C2="PVC国标排水管"})
count(O2[!0]{C2="PVC企标排水管"})
count(C2{C2="PVC国标排水管"})
count(C2{C2="PVC企标排水管"})
count(O2{条件}) 试试
参考条件汇总-https://help.fanruan.com/finereport/doc-view-345.html