当MID遇上FIND会发生什么有趣的故事!
=LEFT(A1,COUNT(FIND("-",A1,ROW($1:$99)))-1)
=MID(A1,1,COUNT(FIND("-",A1,ROW($1:$99)))-1
=SUBSTITUTE(A1,RIGHT(A1,LEN(A1)-COUNT(FIND("-",A1,ROW($1:$99)))+1),"")
=FIND("办公","Excel办公实战用于办公")
=FIND("办公","Excel办公实战用于办公",7)
=FIND("-",A1,ROW($1:$99))
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