學(xué)生信息管理系統(tǒng)代碼

1、主要代碼如下：1、登錄界面代碼：Dim cn As New ADODB.ConnectionDim rst As New ADODB.RecordsetPrivate Sub Command1_Click() Set cn = New ADODB.Connection Set rst = New ADODB.Recordset Static i% cn.ConnectionString = "Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Initial Catalog=students info;Data Sou

2、rce=C1847" cn.Open usna = Trim(Text1.Text) mysql = "select * from 用戶表 where 用戶名='" & usna & "'" rst.Open mysql, cn If rst.EOF Then MsgBox "用戶名不存在！" cn.Close Text1.Text = "" Text2.Text = "" Text1.SetFocus Else If Trim(rst("密碼

3、") = Trim(Text2.Text) Then 管理界面.Show Else i = i + 1 If i < 3 Then MsgBox "用戶名或密碼錯(cuò)誤！", vbOKOnly + vbExclamation, "警告" cn.Close Text2.Text = "" Text1.Text = "" Text1.SetFocus Else MsgBox "該用戶已被鎖定！", vbOKOnly + vbExclamation, "警告" End

4、If End If End If End SubPrivate Sub Command2_Click()Text1.Text = ""Text2.Text = ""Text3.Text = ""End Sub2、管理界面代碼：Private Sub Sinsert_Click()添加學(xué)生信息.ShowEnd SubPrivate Sub Sselect_Click()查詢學(xué)生信息.ShowEnd SubPrivate Sub sustu_Click()查詢更新學(xué)生信息.ShowEnd SubPrivate Sub xgmm_Click

5、()修改密碼.ShowEnd SubPrivate Sub yhzc_Click()用戶注冊(cè).ShowEnd Sub3、查詢學(xué)生信息代碼：Dim cn As New ADODB.ConnectionDim rst As New ADODB.RecordsetPrivate Sub Command1_Click() Set cn = New ADODB.Connection Set rst = New ADODB.Recordset cn.ConnectionString = "Provider=SQLOLEDB.1;Persist Security Info=False;User I

6、D=sa;Initial Catalog=students info;Data Source=C1847" cn.Open If Combo1.Text <> "" Then mysql = "select * from 學(xué)生信息表 where 系別='" & Trim(Combo1.Text) & "'" rst.Open mysql, cn If rst.EOF Then MsgBox "沒(méi)有學(xué)生!", vbOKOnly + vbExclamation, &

7、quot;警告" Combo1.Text = "" Else With MSFlexGrid1 .TextMatrix(0, 1) = "學(xué)號(hào)" .TextMatrix(0, 2) = "姓名" .TextMatrix(0, 3) = "性別" .TextMatrix(0, 4) = "年齡" .TextMatrix(0, 5) = "系別" .TextMatrix(0, 6) = "班級(jí)" MSFlexGrid1.Rows = 1 '每

8、次查詢自動(dòng)定位到第一行 Do While Not rst.EOF .Rows = .Rows + 1 .CellAlignment = 8 .TextMatrix(.Rows - 1, 1) = rst.Fields("學(xué)號(hào)") .TextMatrix(.Rows - 1, 2) = rst.Fields("姓名") .TextMatrix(.Rows - 1, 3) = rst.Fields("性別") .TextMatrix(.Rows - 1, 4) = rst.Fields("年齡") .TextMatri

9、x(.Rows - 1, 5) = rst.Fields("系別") .TextMatrix(.Rows - 1, 6) = rst.Fields("班級(jí)") rst.MoveNext Loop End With End If ElseIf Combo2.Text <> "" Then mysql = "select * from 學(xué)生信息表 where 班級(jí)='" & Trim(Combo2.Text) & "'" rst.Open mysql, c

10、n If rst.EOF Then MsgBox "沒(méi)有學(xué)生!", vbOKOnly + vbExclamation, "警告" Combo1.Text = "" Else With MSFlexGrid1 .TextMatrix(0, 1) = "學(xué)號(hào)" .TextMatrix(0, 2) = "姓名" .TextMatrix(0, 3) = "性別" .TextMatrix(0, 4) = "年齡" .TextMatrix(0, 5) = "

11、系別" .TextMatrix(0, 6) = "班級(jí)" MSFlexGrid1.Rows = 1 '每次查詢自動(dòng)定位到第一行 Do While Not rst.EOF .Rows = .Rows + 1 .CellAlignment = 8 .TextMatrix(.Rows - 1, 1) = rst.Fields("學(xué)號(hào)") .TextMatrix(.Rows - 1, 2) = rst.Fields("姓名") .TextMatrix(.Rows - 1, 3) = rst.Fields("性別&q

12、uot;) .TextMatrix(.Rows - 1, 4) = rst.Fields("年齡") .TextMatrix(.Rows - 1, 5) = rst.Fields("系別") .TextMatrix(.Rows - 1, 6) = rst.Fields("班級(jí)") rst.MoveNext Loop End With End If ElseIf Text1.Text <> "" Then mysql = "select * from 學(xué)生信息表 where 學(xué)號(hào)='&q

13、uot; & Trim(Text1.Text) & "'" rst.Open mysql, cn If rst.EOF Then MsgBox "沒(méi)有學(xué)生!", vbOKOnly + vbExclamation, "警告" Combo1.Text = "" Else With MSFlexGrid1 .TextMatrix(0, 1) = "學(xué)號(hào)" .TextMatrix(0, 2) = "姓名" .TextMatrix(0, 3) = "性

14、別" .TextMatrix(0, 4) = "年齡" .TextMatrix(0, 5) = "系別" .TextMatrix(0, 6) = "班級(jí)" MSFlexGrid1.Rows = 1 '每次查詢自動(dòng)定位到第一行 Do While Not rst.EOF .Rows = .Rows + 1 .CellAlignment = 8 .TextMatrix(.Rows - 1, 1) = rst.Fields("學(xué)號(hào)") .TextMatrix(.Rows - 1, 2) = rst.Fie

15、lds("姓名") .TextMatrix(.Rows - 1, 3) = rst.Fields("性別") .TextMatrix(.Rows - 1, 4) = rst.Fields("年齡") .TextMatrix(.Rows - 1, 5) = rst.Fields("系別") .TextMatrix(.Rows - 1, 6) = rst.Fields("班級(jí)") rst.MoveNext Loop End With End IfElse MsgBox "請(qǐng)輸入查詢條件!&

16、quot;, vbOKOnly + vbExclamation, "警告" End If End SubPrivate Sub Command2_Click()Combo1.Text = ""Combo2.Text = ""Text1.Text = ""End SubPrivate Sub Command3_Click()修改學(xué)生信息.ShowEnd Sub '修改學(xué)生信息Private Sub Command4_Click() Set cn = New ADODB.Connection Set rst =

17、 New ADODB.Recordset cn.ConnectionString = "Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Initial Catalog=students info;Data Source=C1847" cn.Open mysql = "delete from 學(xué)生信息表 where 學(xué)號(hào)='" & Text1.Text & "'" rst.Open mysql, cn MsgBox "刪除成功

18、!", vbOKOnly + vbExclamation, "警告" End SubPrivate Sub Form_Load()Combo1.AddItem "信息服務(wù)學(xué)院"Combo1.AddItem "電子信息工程系"Combo2.AddItem "40821P"Combo2.AddItem "40811P"Combo2.AddItem "40822P"Combo2.AddItem "40721P"End Sub4、添加學(xué)生信息代碼Dim

19、cn As New ADODB.ConnectionDim rst As New ADODB.RecordsetPrivate Sub Form_Load()Combo1.AddItem "信息服務(wù)學(xué)院"Combo1.AddItem "電子信息工程系"Combo2.AddItem "40821P"Combo2.AddItem "40811P"Combo2.AddItem "40822P"Combo2.AddItem "40721P"End SubPrivate Sub Com

20、mand1_Click() Set cn = New ADODB.Connection Set rst = New ADODB.Recordset cn.ConnectionString = "Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Initial Catalog=students info;Data Source=C1847" cn.OpenDim sex As String usna = Trim(Text1.Text) mysql = "select * from 學(xué)生信息表 wh

21、ere 學(xué)號(hào)='" & usna & "'" rst.Open mysql, cn If rst.EOF Then rst.Close Else rst.Close MsgBox "該學(xué)生信息已存在!", vbOKOnly + vbExclamation, "警告" Text1.Text = "" Text2.Text = "" Text3.Text = "" Combo1.Text = "" Combo2.Tex

22、t = "" Option1.Value = False Text1.SetFocus End IfIf Text1.Text = "" Then MsgBox "請(qǐng)輸入學(xué)號(hào)！", vbOKOnly + vbExclamation, "警告" Text1.SetFocus Exit Sub End IfIf Text2.Text = "" Then MsgBox "請(qǐng)輸入姓名！", vbOKOnly + vbExclamation, "警告" Text2.

23、SetFocus Exit Sub End IfIf Text3.Text = "" Then MsgBox "請(qǐng)輸入年齡！", vbOKOnly + vbExclamation, "警告" Text3.SetFocus Exit Sub End IfIf Option1.Value Then sex = "男" Else sex = "女"End Ifxh = Trim(Text1.Text)xm = Trim(Text2.Text)xb = sexnl = Trim(Text3.Text)x

24、ofy = Trim(Combo1.Text)bj = Trim(Combo2.Text)mysql = "insert into 學(xué)生信息表(學(xué)號(hào),姓名,性別,年齡,系別,班級(jí)) values ('" & xh & "','" & xm & "','" & xb & "','" & nl & "','" & xofy & "'

25、,'" & bj & "')"rst.Open mysql, cnMsgBox ("信息添加成功!") Text1.Text = "" Text2.Text = "" Text3.Text = "" Combo1.Text = "" Combo2.Text = "" Option1.Value = FalseEnd Sub5、修改密碼：Dim rst As New ADODB.Recordset Dim cn As

26、 New ADODB.ConnectionPrivate Sub Command1_Click() Set cn = New ADODB.Connection Set rst = New ADODB.Recordset cn.ConnectionString = "Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Initial Catalog=students info;Data Source=C1847" cn.Open If Text1.Text = "" Then MsgBox

27、"請(qǐng)輸入密碼！", vbOKOnly + vbExclamation, "警告" Text1.SetFocus Exit Sub End IfIf Text2.Text = "" Then MsgBox "請(qǐng)輸入新密碼！", vbOKOnly + vbExclamation, "警告" Text2.SetFocus Exit Sub End IfIf Text3.Text = "" Then MsgBox "請(qǐng)確認(rèn)輸入的新密碼！", vbOKOnly +

28、vbExclamation, "警告" Text3.SetFocus Exit Sub End IfIf Text2.Text = Text3.Text Thenxmm = Trim(Text2.Text)mysql = "update 用戶表 set 密碼 = '" & xmm & "' where 用戶名 = '" & 登陸.Text1.Text & "'"rst.Open mysql, cnMsgBox ("密修改成功!")E

29、nd If End SubPrivate Sub Command2_Click()Text1.Text = ""Text2.Text = ""Text3.Text = ""End Sub6、修改學(xué)生信息代碼：Dim cn As New ADODB.ConnectionDim rst As New ADODB.RecordsetPrivate Sub Command1_Click() Set cn = New ADODB.Connection Set rst = New ADODB.Recordset cn.ConnectionStri

30、ng = "Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Initial Catalog=students info;Data Source=C1847" cn.Open usna = Trim(Text1.Text) mysql = "select * from 學(xué)生信息表 where 學(xué)號(hào)='" & usna & "'" rst.Open mysql, cn rst.Close mysql = "delete from

31、 學(xué)生信息表 where 學(xué)號(hào)='" & Text1.Text & "'" rst.Open mysql, cn If Text1.Text = "" Then MsgBox "請(qǐng)輸入學(xué)號(hào)！", vbOKOnly + vbExclamation, "警告" Text1.SetFocus Exit Sub End IfIf Text2.Text = "" Then MsgBox "請(qǐng)輸入姓名！", vbOKOnly + vbExclam

32、ation, "警告" Text2.SetFocus Exit Sub End IfIf Text3.Text = "" Then MsgBox "請(qǐng)輸入年齡！", vbOKOnly + vbExclamation, "警告" Text3.SetFocus Exit Sub End IfIf Option1.Value Then sex = "男" Else sex = "女"End Ifxh = Trim(Text1.Text)xm = Trim(Text2.Text)xb

33、 = sexnl = Trim(Text3.Text)xofy = Trim(Combo1.Text)bj = Trim(Combo2.Text)mysql = "insert into 學(xué)生信息表(學(xué)號(hào),姓名,性別,年齡,系別,班級(jí)) values ('" & xh & "','" & xm & "','" & xb & "','" & nl & "','"

34、& xofy & "','" & bj & "')"rst.Open mysql, cnMsgBox ("信息修改成功!") Text1.Text = "" Text2.Text = "" Text3.Text = "" Combo1.Text = "" Combo2.Text = "" Option1.Value = False End SubPrivate Sub Form_L

35、oad()Combo1.AddItem "信息服務(wù)學(xué)院"Combo1.AddItem "電子信息工程系"Combo2.AddItem "40821P"Combo2.AddItem "40811P"Combo2.AddItem "40822P"Combo2.AddItem "40721P"End Sub7、用戶注冊(cè)代碼：Dim rst As New ADODB.Recordset Dim cn As New ADODB.ConnectionPrivate Sub Command

36、1_Click() Set cn = New ADODB.Connection Set rst = New ADODB.Recordset cn.ConnectionString = "Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Initial Catalog=students info;Data Source=C1847" cn.Open If Text1.Text = "" Then MsgBox "請(qǐng)輸入用戶名！", vbOKOnly + vbExclam

37、ation, "警告" Text1.SetFocus Exit Sub End IfIf Text2.Text = "" Then MsgBox "請(qǐng)輸入密碼！", vbOKOnly + vbExclamation, "警告" Text2.SetFocus Exit Sub End IfIf Text3.Text = "" Then MsgBox "請(qǐng)?jiān)俅屋斎朊艽a！", vbOKOnly + vbExclamation, "警告" Text3.SetFoc

38、us Exit Sub End Ifsryhm = Trim(Text1.Text)srmm = Trim(Text2.Text)mysql = "insert into 用戶表(用戶名,密碼) values ('" & sryhm & "','" & srmm & "')"rst.Open mysql, cnMsgBox ("用戶添加成功!")Text1.Text = ""Text2.Text = ""Text

39、3.Text = "" End Sub '添加用戶Private Sub Command2_Click()Text1.Text = ""Text2.Text = ""Text3.Text = ""End Sub '重置按鈕Private Sub Command3_Click() Set cn = New ADODB.Connection Set rst = New ADODB.Recordset cn.ConnectionString = "Provider=SQLOLEDB.1;Pers

40、ist Security Info=False;User ID=sa;Initial Catalog=students info;Data Source=C1847" cn.Open usna = Trim(Text1.Text) mysql = "select * from 用戶表 where 用戶名='" & usna & "'" rst.Open mysql, cn If rst.EOF Then MsgBox "用戶名可用！" Else MsgBox "用戶名已存在！&quo

41、t;, vbOKOnly + vbExclamation, "警告" Text1.Text = "" Text2.Text = "" Text3.Text = "" Text1.SetFocus Exit Sub End IfEnd Sub '檢查用戶名Private Sub Command4_Click() Set cn = New ADODB.Connection Set rst = New ADODB.Recordset cn.ConnectionString = "Provider=SQLOLEDB.1;Persist Securit