practice4_6.frm

来自「深圳大学的vb上机与教学的课件」· FRM 代码 · 共 156 行

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "求方程的解"
   ClientHeight    =   2490
   ClientLeft      =   45
   ClientTop       =   345
   ClientWidth     =   3315
   LinkTopic       =   "Form1"
   ScaleHeight     =   2490
   ScaleWidth      =   3315
   StartUpPosition =   2  '屏幕中心
   Begin VB.CommandButton Command1 
      Caption         =   "求解"
      Height          =   372
      Left            =   240
      TabIndex        =   11
      Top             =   1920
      Width           =   1092
   End
   Begin VB.TextBox C2 
      Alignment       =   2  'Center
      Height          =   372
      Left            =   2400
      TabIndex        =   5
      Top             =   960
      Width           =   612
   End
   Begin VB.TextBox B2 
      Alignment       =   2  'Center
      Height          =   372
      Left            =   1320
      TabIndex        =   4
      Top             =   960
      Width           =   612
   End
   Begin VB.TextBox A2 
      Alignment       =   2  'Center
      Height          =   372
      Left            =   240
      TabIndex        =   3
      Top             =   960
      Width           =   612
   End
   Begin VB.TextBox C1 
      Alignment       =   2  'Center
      Height          =   372
      Left            =   2400
      TabIndex        =   2
      Top             =   240
      Width           =   612
   End
   Begin VB.TextBox B1 
      Alignment       =   2  'Center
      Height          =   372
      Left            =   1320
      TabIndex        =   1
      Top             =   240
      Width           =   612
   End
   Begin VB.TextBox A1 
      Alignment       =   2  'Center
      Height          =   372
      Left            =   240
      TabIndex        =   0
      Top             =   240
      Width           =   612
   End
   Begin VB.Line Line1 
      X1              =   0
      X2              =   3360
      Y1              =   1680
      Y2              =   1680
   End
   Begin VB.Label Label5 
      Height          =   372
      Left            =   1920
      TabIndex        =   10
      Top             =   1920
      Width           =   972
   End
   Begin VB.Label Label4 
      Caption         =   "Y="
      Height          =   252
      Left            =   2040
      TabIndex        =   9
      Top             =   1080
      Width           =   252
   End
   Begin VB.Label Label3 
      Caption         =   "X+"
      Height          =   252
      Left            =   960
      TabIndex        =   8
      Top             =   1080
      Width           =   252
   End
   Begin VB.Label Label2 
      Caption         =   "Y="
      Height          =   252
      Left            =   2040
      TabIndex        =   7
      Top             =   360
      Width           =   252
   End
   Begin VB.Label Label1 
      Caption         =   "X+"
      Height          =   252
      Left            =   960
      TabIndex        =   6
      Top             =   360
      Width           =   252
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False

Private Sub A1_GotFocus()
   A1.SelStart = 0
   A1.SelLength = Len(A1.Text)
End Sub

Private Sub A2_GotFocus()
   A2.SelStart = 0
   A2.SelLength = Len(A2.Text)
End Sub

Private Sub B1_GotFocus()
   B1.SelStart = 0
   B1.SelLength = Len(B1.Text)
End Sub

Private Sub B2_GotFocus()
   B2.SelStart = 0
   B2.SelLength = Len(B2.Text)
End Sub

Private Sub C1_GotFocus()
   C1.SelStart = 0
   C1.SelLength = Len(C1.Text)
End Sub

Private Sub C2_GotFocus()
   C2.SelStart = 0
   C2.SelLength = Len(C2.Text)
End Sub

Private Sub Command1_Click()
   t = A1.Text * B2.Text - A2.Text * B1.Text
   x = (C1.Text * B2.Text - C2.Text * B1.Text) / t
   y = (A1.Text * C2.Text - A2.Text * C1.Text) / t
   Label5.Caption = "x=" & Str(x) & Chr(13) & Chr(10) & "y=" & Str(y)
End Sub