pexam11_15.frm

来自「深圳大学的vb上机与教学的课件」· FRM 代码 · 共 86 行

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   4185
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   6855
   LinkTopic       =   "Form1"
   ScaleHeight     =   4185
   ScaleWidth      =   6855
   StartUpPosition =   3  '窗口缺省
   Begin VB.PictureBox P1 
      Height          =   3255
      Left            =   120
      ScaleHeight     =   3195
      ScaleWidth      =   6555
      TabIndex        =   4
      Top             =   120
      Width           =   6615
   End
   Begin VB.CommandButton Command4 
      Caption         =   "清除全部"
      Height          =   495
      Left            =   4560
      TabIndex        =   3
      Top             =   3480
      Width           =   975
   End
   Begin VB.CommandButton Command3 
      Caption         =   "清除圆"
      Height          =   495
      Left            =   3360
      TabIndex        =   2
      Top             =   3480
      Width           =   975
   End
   Begin VB.CommandButton Command2 
      Caption         =   "画圆"
      Height          =   495
      Left            =   2160
      TabIndex        =   1
      Top             =   3480
      Width           =   975
   End
   Begin VB.CommandButton Command1 
      Caption         =   "画背景"
      Height          =   495
      Left            =   960
      TabIndex        =   0
      Top             =   3480
      Width           =   975
   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()
    P1.AutoRedraw = True
    dx = P1.ScaleWidth / 20
    P1.ForeColor = vbYellow
    For I = 1 To 19
      P1.Line (I * dx, 0)-(I * dx, P1.ScaleHeight)
    Next I
End Sub
Private Sub Command2_Click()
    P1.AutoRedraw = False
    P1.ForeColor = vbRed
    Randomize
For I = 1 To 20
      cx = Int(Rnd * P1.ScaleWidth)
      cy = Int(Rnd * P1.ScaleHeight)
      P1.Circle (cx, cy), 200
   Next I
End Sub
Private Sub Command3_Click()
   P1.AutoRedraw = False
   P1.Cls
End Sub
Private Sub Command4_Click()
   P1.AutoRedraw = True
   P1.Cls
End Sub