For i = 1 To 999 If i < 10 Then i = "00" & i ElseIf i > 9 and i < 100 Then i = "0" & i End If TracePrint iNext
自己调试下面代码:For i = 0 To 999 n = Len(i) i = String(3 - n, "0") & i MessageBox iNext