=IF(D5>=20,15,IF(D5>=10,10,5))注:10只能在一个地方
假设工龄写在A1单元格,则年假公式为=IF(A1="","",IF(A1<5,7,IF(A1<10,10,10+2*(A1-10))))或=IF(A1="","",IF(A1<5,7,IF(A1<10,10,2*A1-10)))