计算器vb源代码.txt性格本身没有好坏，乐观和悲观对这个世界都有贡献，前者发明了飞机，后者发明了降落伞。完全版的前后台代码.请把下面的保存为 form1.frm VERSION 5.00 Begin VB.Form Calculator BorderStyle = 1 Fixed Single Caption = 计算器 ClientHeight = 2970 ClientLeft = 2580 ClientTop = 1485 ClientWidth = 3270 ClipControls = 0 False BeginProperty Font Name = System Size = 9.75 Charset = 0 Weight = 700 Underline = 0 False Italic = 0 False Strikethrough = 0 False EndProperty Icon = CALC.frx:0000 LinkMode = 1 Source LinkTopic = Form1 MaxButton = 0 False PaletteMode = 1 UseZOrder ScaleHeight = 2970 ScaleWidth = 3270 WhatsThisHelp = -1 True Begin VB.CommandButton Number Caption = 7 Height = 480 Index = 7 Left = 120 TabIndex = 7 Top = 600 Width = 480 End Begin VB.CommandButton Number Caption = 8 Height = 480 Index = 8 Left = 720 TabIndex = 8 Top = 600 Width = 480 End Begin VB.CommandButton Number Caption = 9 Height = 480 Index = 9 Left = 1320 TabIndex = 9 Top = 600 Width = 480 End Begin VB.CommandButton Cancel Caption = C Height = 480 Left = 2040 TabIndex = 10 Top = 600 Width = 480 End Begin VB.CommandButton CancelEntry Caption = CE Height = 480 Left = 2640 TabIndex = 11 Top = 600 Width = 480 End Begin VB.CommandButton Number Caption = 4 Height = 480 Index = 4 Left = 120 TabIndex = 4 Top = 1200 Width = 480 End Begin VB.CommandButton Number Caption = 5 Height = 480 Index = 5 Left = 720 TabIndex = 5 Top = 1200 Width = 480 End Begin VB.CommandButton Number Caption = 6 Height = 480 Index = 6 Left = 1320 TabIndex = 6 Top = 1200 Wi