registerl.frm

学生成绩管理系统,学生成绩的增删改查功能,学期管理功能

VERSION 5.00
Begin VB.Form register 
   Caption         =   "登录"
   ClientHeight    =   2970
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4680
   ControlBox      =   0   'False
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   2970
   ScaleWidth      =   4680
   StartUpPosition =   2  'CenterScreen
   Begin VB.CommandButton cmdcancel 
      Caption         =   "退出"
      Height          =   465
      Left            =   2730
      TabIndex        =   6
      Top             =   2280
      Width           =   975
   End
   Begin VB.CommandButton cmdok 
      Caption         =   "登录"
      Height          =   495
      Left            =   1020
      TabIndex        =   5
      Top             =   2250
      Width           =   1035
   End
   Begin VB.TextBox userpassword 
      Height          =   405
      IMEMode         =   3  'DISABLE
      Left            =   1620
      PasswordChar    =   "*"
      TabIndex        =   4
      Top             =   1500
      Width           =   1965
   End
   Begin VB.TextBox username 
      Height          =   375
      Left            =   1620
      TabIndex        =   3
      Top             =   1080
      Width           =   1965
   End
   Begin VB.Label Label3 
      Caption         =   "用户密码："
      Height          =   495
      Left            =   750
      TabIndex        =   2
      Top             =   1590
      Width           =   1245
   End
   Begin VB.Label Label2 
      Caption         =   "用户名："
      Height          =   465
      Left            =   930
      TabIndex        =   1
      Top             =   1170
      Width           =   1125
   End
   Begin VB.Label Label1 
      Alignment       =   2  'Center
      Caption         =   "学生信息管理系统"
      BeginProperty Font 
         Name            =   "华文行楷"
         Size            =   18
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   480
      TabIndex        =   0
      Top             =   330
      Width           =   3825
   End
End
Attribute VB_Name = "register"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit  '强制变量声明
Private Sub cmdok_Click()
  Dim txtsql As String  '用来存放SQL语句
  Dim mrc As ADODB.Recordset '用来存放返回记录集对象
  Dim msgtext As String '用来存放返回信息
  If username.Text = "" Then
     MsgBox "请输入用户名！"
     username.SetFocus
  Else
     txtsql = "select * from user_info where user_ID='" & username.Text & "'"
     Set mrc = ExecuteSQL(txtsql, msgtext)  '在用户表中查找用户
     If mrc.EOF Then   '没找到用户,回到用户名输入框
        MsgBox "没有这个用户!"
        username.SetFocus
     Else          '找到用户，比较密码是否正确
        If Trim(mrc.Fields("user_PWD")) = Trim(userpassword.Text) Then
          username_OK = Trim(userpassword.Text)
          Unload Me  '密码正确，进行系统
          frmmain.Show
        Else    '密码不对，重新输入
          MsgBox "输入密码不对！,请重新输入"
          userpassword.SetFocus
        End If
     End If
  End If
End Sub
Private Sub cmdcancel_Click()
 End
End Sub