for语句 Sub toRMB() Dim rate, i If Cells(7, 6) = "USD" Then '做一个简单的if判断 rate = Cells(8, 6) For i = 11 To 20 Step 1 '步长为1可省略,若是20 to 11,则step -1 Cells(i, 6) = Cells(i