form1.frm

本设计要求使用微机与可编程控制器通过串行通信接口进行连接

VERSION 5.00
Begin VB.Form Form1 
   BackColor       =   &H00808080&
   BorderStyle     =   1  'Fixed Single
   Caption         =   "PLC监控程序"
   ClientHeight    =   3105
   ClientLeft      =   45
   ClientTop       =   420
   ClientWidth     =   4680
   ForeColor       =   &H00000000&
   Icon            =   "Form1.frx":0000
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   Picture         =   "Form1.frx":0B3A
   ScaleHeight     =   3105
   ScaleWidth      =   4680
   StartUpPosition =   2  '屏幕中心
   Begin VB.CommandButton Cmd2 
      BackColor       =   &H00FFFFC0&
      Caption         =   "退出"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   15
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   2760
      Style           =   1  'Graphical
      TabIndex        =   5
      Top             =   2280
      Width           =   1215
   End
   Begin VB.CommandButton Cmd1 
      BackColor       =   &H00FFFFC0&
      Caption         =   "进入监控"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   720
      Style           =   1  'Graphical
      TabIndex        =   4
      Top             =   2280
      Width           =   1095
   End
   Begin VB.TextBox Txt2 
      Height          =   375
      IMEMode         =   3  'DISABLE
      Left            =   1680
      PasswordChar    =   "*"
      TabIndex        =   1
      Top             =   1320
      Width           =   2175
   End
   Begin VB.TextBox Txt1 
      Height          =   375
      Left            =   1680
      TabIndex        =   0
      Top             =   600
      Width           =   2175
   End
   Begin VB.Label Label2 
      AutoSize        =   -1  'True
      BackStyle       =   0  'Transparent
      Caption         =   "密码:"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   15
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H0000FF00&
      Height          =   315
      Left            =   600
      TabIndex        =   3
      Top             =   1320
      Width           =   720
   End
   Begin VB.Label Label1 
      AutoSize        =   -1  'True
      BackStyle       =   0  'Transparent
      Caption         =   "用户名:"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H0000FF00&
      Height          =   285
      Left            =   480
      TabIndex        =   2
      Top             =   600
      Width           =   960
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit

Private Sub Cmd1_Click()
Dim X As String


Rem 密码验证程序
   If Txt1.Text = "geqingguang" And Txt2.Text = "123456" Then
    Form1.Hide
    Form2.Show
    Form2.Enabled = True

     Else: X = MsgBox("你输入的密码不正确", 16)
    End If
    
    
End Sub

Private Sub Form_Load()
Form2.Enabled = False
Form2.Show
End Sub