两位数活多位乘法的计算编程

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代码编写;

Option Base 1

Private Sub Command1_Click() Dim M As String Dim N As String M = Trim(Text1.Text) N = Trim(Text2.Text) Dim Number1() As Byte Dim Number2() As Byte ReDim Number1(Len(M)) ReDim Number2(Len(N)) Dim index As Byte For index = 1 To Len(M) Step 1 Number1(index) = Mid(M, index, 1) Next index For index = 1 To Len(N) Step 1 Number2(index) = Mid(N, index, 1) Next index Dim Result() As Byte ReDim Result(Len(M) + Len(N)) Dim MCarry As Byte Dim ACarry As Byte Dim Remainder As Integer Dim i As Integer, j As Integer Dim Mtemp As Integer, Atemp As Integer For i = Len(N) To 1 Step -1 For j = Len(M) To 1 Step -1 Mtemp = Number1(j) * Number2(i) + MCarry MCarry = Mtemp \ 10 Remainder = Mtemp Mod 10 Atemp = Remainder + Result(i + j) + ACarry ACarry = Atemp \ 10 Result(i + j) = Atemp Mod 10 Next j Result(i) = MCarry + ACarry MCarry = 0 ACarry = 0 Next i Dim Mstr As String For index = 1 To Len(N) + Len(M) Mstr = Mstr & Str(Result(index)) Next Label3.Caption = Mstr End Sub

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