if_then1.frm

vb编程+从基础到实践光盘代码

VERSION 5.00
Begin VB.Form if_then1 
   Caption         =   "一年级加法练习"
   ClientHeight    =   2865
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   2865
   ScaleWidth      =   4680
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton Command3 
      BackColor       =   &H00FF00FF&
      Caption         =   "结束"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   3120
      TabIndex        =   9
      Top             =   2160
      Width           =   1215
   End
   Begin VB.CommandButton Command1 
      Caption         =   "开始"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   120
      TabIndex        =   8
      Top             =   2160
      Width           =   1215
   End
   Begin VB.TextBox Text1 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   360
      TabIndex        =   5
      Top             =   360
      Width           =   615
   End
   Begin VB.CommandButton Command2 
      Caption         =   "核对"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   1560
      TabIndex        =   3
      Top             =   2160
      Width           =   1215
   End
   Begin VB.TextBox Text3 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   3000
      TabIndex        =   2
      Top             =   360
      Width           =   735
   End
   Begin VB.TextBox Text2 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   1560
      TabIndex        =   0
      Top             =   360
      Width           =   615
   End
   Begin VB.Label Label4 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   1080
      TabIndex        =   7
      Top             =   1320
      Width           =   3015
   End
   Begin VB.Label Label3 
      Caption         =   "结果:"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   120
      TabIndex        =   6
      Top             =   1320
      Width           =   855
   End
   Begin VB.Label Label1 
      Caption         =   "+"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   15.75
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   1200
      TabIndex        =   4
      Top             =   480
      Width           =   375
   End
   Begin VB.Label Label2 
      Caption         =   "="
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   15.75
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   2520
      TabIndex        =   1
      Top             =   480
      Width           =   375
   End
End
Attribute VB_Name = "if_then1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False

Private Sub Command1_Click()
  Text3.Text = ""
  Randomize
  Text1.Text = Val(Int(Rnd * 101))
  Text2.Text = Val(Int(Rnd * 101))
  Command2.SetFocus
  Text3.Text = Val(InputBox("请输入计算的结果："))
End Sub

Private Sub Command2_Click()
  If Val(Text3.Text) = Val(Text1.Text) + Val(Text2.Text) Then
   Label4.Caption = "很好，答对了！ "
 Else
   Label4.Caption = "做错了，再来一次吧！"
 End If
End Sub

Private Sub Command3_Click()
  End
End Sub