在B1中输入或复制粘贴下列公式=IF(A1<=500,500,A1)或=IF(A1>500,A1,500)或=MAX(A1,500)
B1=IF(A1<500,500,A1)或者=MAX(500,A1)
B1=IF(A1>500,A1,500)
=MAX(A1,500)