form1.frm

VB编写的表达式计算器

VERSION 5.00
Begin VB.Form Form1 
   BorderStyle     =   1  'Fixed Single
   Caption         =   "表达式计算器"
   ClientHeight    =   3360
   ClientLeft      =   45
   ClientTop       =   330
   ClientWidth     =   4710
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   ScaleHeight     =   3360
   ScaleWidth      =   4710
   StartUpPosition =   3  '窗口缺省
   Begin VB.TextBox Res 
      BackColor       =   &H8000000F&
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   240
      Locked          =   -1  'True
      TabIndex        =   5
      Text            =   "2"
      Top             =   1080
      Width           =   2895
   End
   Begin VB.TextBox Text2 
      BackColor       =   &H8000000F&
      BorderStyle     =   0  'None
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   1455
      Left            =   240
      Locked          =   -1  'True
      MultiLine       =   -1  'True
      TabIndex        =   4
      Text            =   "Form1.frx":0000
      Top             =   1800
      Width           =   4335
   End
   Begin VB.CommandButton Command1 
      Caption         =   "计算(&C)"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   615
      Left            =   3360
      TabIndex        =   1
      Top             =   240
      Width           =   975
   End
   Begin VB.TextBox Exp 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   240
      TabIndex        =   0
      Text            =   "1+1"
      Top             =   360
      Width           =   2895
   End
   Begin VB.Label Label2 
      Caption         =   "结果："
      Height          =   255
      Left            =   240
      TabIndex        =   3
      Top             =   840
      Width           =   1935
   End
   Begin VB.Label Label1 
      Caption         =   "表达式："
      Height          =   255
      Left            =   240
      TabIndex        =   2
      Top             =   120
      Width           =   1815
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Command1_Click()
    On Error GoTo Err1:
    Res.Text = Calc(Exp.Text)
    Exit Sub
Err1:
    MsgBox "出现错误！", vbInformation + vbOKOnly, "错误"
End Sub