设计具有简单四则运算功能的计算器.
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设计具有简单四则运算功能的计算器.
Dim s As StringDim A As DoubleDim B As DoubleDim C As DoubleDim run As IntegerDim steps As IntegerPrivate Sub dengCmd_Click(Index As Integer)'结果与显示 If steps = 3 Then Select Case run Case 1 C = A + B Case 2 C = A - B Case 3 C = A * B Case 4 C = A / B Case 5 C = A ^ B End Select Text1 = C A = C s = "" steps = 1 End IfEnd SubPrivate Sub Form_Load() Dim i As Integer For i = 0 To 5 steps = 0 NextEnd SubPrivate Sub kongCmd_Click(Index As Integer) s = "" A = 0 Text1 = ""End SubPrivate Sub numCmd_Click(Index As Integer)'数A 和 数B If steps = 0 Or steps = 1 Then steps = 1 If Index = 10 Then s = s & "." Else s = s & Index End If Text1.Text = s & " " A = Val(s) ElseIf steps = 2 Or steps = 3 Then steps = 3 If Index = 10 Then s = s & "." Else s = s & Index End If Text1.Text = s & " " B = Val(s) End If End SubPrivate Sub pCmd_Click(Index As Integer)'运算符号+-*/^ If steps = 1 Or steps = 2 Then steps = 2 run = Index s = "" End IfEnd Sub张志晨:绝对是我自己编写出来的.
设计具有简单四则运算功能的计算器.
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