form4.frm

一个教学管理系统,可以满足一般课程设计的要求

VERSION 5.00
Begin VB.Form Form4 
   BorderStyle     =   3  'Fixed Dialog
   Caption         =   "课程成绩查询"
   ClientHeight    =   4365
   ClientLeft      =   45
   ClientTop       =   435
   ClientWidth     =   9990
   LinkTopic       =   "Form4"
   MaxButton       =   0   'False
   MDIChild        =   -1  'True
   MinButton       =   0   'False
   ScaleHeight     =   4365
   ScaleWidth      =   9990
   ShowInTaskbar   =   0   'False
   Begin VB.CommandButton Command2 
      Caption         =   "打印成绩单"
      Height          =   375
      Left            =   7560
      TabIndex        =   6
      Top             =   2280
      Width           =   1455
   End
   Begin VB.TextBox Text2 
      Height          =   375
      Left            =   8040
      TabIndex        =   5
      Top             =   960
      Width           =   1335
   End
   Begin VB.TextBox Text1 
      Height          =   375
      Left            =   8040
      TabIndex        =   3
      Top             =   360
      Width           =   1335
   End
   Begin VB.ListBox List1 
      Height          =   3840
      Left            =   360
      TabIndex        =   2
      Top             =   240
      Width           =   6135
   End
   Begin VB.CommandButton Command1 
      Caption         =   "确定查询"
      Height          =   375
      Left            =   7560
      TabIndex        =   1
      Top             =   1680
      Width           =   1455
   End
   Begin VB.Label Label4 
      Caption         =   "课程名称："
      Height          =   255
      Left            =   7080
      TabIndex        =   4
      Top             =   1080
      Width           =   1335
   End
   Begin VB.Label Label1 
      Caption         =   "课 序 号："
      Height          =   255
      Left            =   7080
      TabIndex        =   0
      Top             =   480
      Width           =   1335
   End
End
Attribute VB_Name = "Form4"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Command1_Click()
Dim rs_test As New ADODB.Recordset
Dim sql As String
Dim s As Single
Dim a As Single
If Text1.Text = "" And Text2.Text = "" Then
   MsgBox "请先选择查询项目"
   Exit Sub
End If
sql = "select * from student,choose,kecheng,teacher,lesson where kecheng.t_id=teacher.t_id and kecheng.l_id=lesson.l_id and student.s_id=choose.s_id and choose.l_id=kecheng.l_id and (choose.l_id=" & Text1.Text & " or lesson.l_name=" & "'" & Text2.Text & "'" & ")"
Call Conn
  rs_test.Open sql, Module1.conn_mdb, 3, 3
rs_test.MoveFirst
Text1.Text = rs_test("l_id")
Text2.Text = rs_test("l_name")
List1.List(0) = "课程名称：" & rs_test("l_name") & "      课 序 号：" & rs_test("l_id")
List1.List(1) = "任课教师：" & rs_test("t_name") & "       学    时：" & rs_test("l_time")
List1.List(2) = "学    分：" & rs_test("l_fen")
List1.List(3) = "____________________________________________"
List1.List(4) = "  学号    |     姓名     |  性别  |  成绩  |"
While (Not rs_test.EOF)
   i = i + 1          '人数
   List1.List(i + 4) = rs_test("s_id") & "|    " & rs_test("s_name") & "|   " & rs_test("sex") & "   |   " & rs_test("mark") & "   |"
   s = s + rs_test("mark")
   rs_test.MoveNext

Wend
List1.List(i + 5) = "——————————————————————"
a = s / i
List1.List(i + 6) = "选课人数：" & i & "        平 均 分：" & a
Call conclose
End Sub

Private Sub Command2_Click()
MsgBox "功能尚未实现", , "提示"
End Sub

Private Sub Text1_Click()
Text1.Text = ""
Text2.Text = ""
List1.Clear
End Sub

Private Sub Text2_Click()
Text1.Text = ""
Text2.Text = ""
List1.Clear
End Sub