=IF(AND(A1>0,A1<=50),A1,IF(A1<=100,A1*2,IF(A1>100,200,"")))B1输入上式
参考if( a< 50, "值1“, if(a<100, "值2", "值3"))
=IF(A1<=50,A1,IF(50100,200,"")
=IF(A1="A",MIN((B1-50)/100,10),IF(A1="B",MIN(B1/100,5),""))