学生信息管理系统代码

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学生信息管理系统代码

主要代码如下:1、登录界面代码：Dim cn As New ADODB.ConnectionDim rst As New ADODB。

RecordsetPrivate Sub Command1_Click（）Set cn = New ADODB.ConnectionSet rst = New ADODB。

RecordsetStatic i％cn。

ConnectionString = ”Provider=SQLOLEDB。

1；Persist Security Info=False；User ID=sa;Initial Catalog=students info;Data Source=C1847”cn.Openusna = Trim（Text1.Text)mysql = "select * from 用户表 where 用户名='”＆ usna ＆”’”rst。

Open mysql, cnIf rst。

EOF ThenMsgBox ”用户名不存在!”cn。

CloseText1.Text = "”Text2.Text = ""Text1。

SetFocusElseIf Trim（rst（”密码”）） = Trim（Text2。

Text) Then管理界面.ShowElsei = i + 1If i < 3 ThenMsgBox ”用户名或密码错误！”, vbOKOnly + vbExclamation, "警告”cn。

CloseText2。

Text = ””Text1.Text = ””Text1。

SetFocusElseMsgBox "该用户已被锁定！”， vbOKOnly + vbExclamation, "警告"End IfEnd IfEnd IfEnd SubPrivate Sub Command2_Click（）Text1。

学生管理系统c语言源代码

int main()
{
initLinkTable(&head);//初始化表头
readStu();//读入源文件
while (1)
{
menu();
system("cls");
}
}
void initLinkTable(studentLinkPoint *p)
int sum(studentLinkPoint);//求和
void avg(studentLinkPoint);//求平均分
void disAvgSum(studentLinkPoint);//显示总分和平均分
char *inputNumber();//专门用来输入一个学生的学号,返回该字符串的指针
char name[20];
char number[18];
int i;
if(temp==0)
{
error("input");
return 0;
}
else
{
temp->student=(studentPint)malloc(sizeof(studentNod));
break;
case 0:
del(head,end);
break;
}
if(c==0)
exit(1);
}
void del(studentLinkPoint p,studentLinkPoint End)
{
studentLinkPoint q;
if(end==head)
printf(" %3.1f %3.1f\n",p->student->sum,p->student->avg);

java学生管理系统大作业代码

java学生管理系统大作业代码Java学生管理系统是一个基于Java语言开发的学生信息管理系统，用于方便学校教务人员进行学生信息的管理和查询。

以下是该系统的代码实现。

1. 登录界面代码实现该界面是用户登录的入口，用户需要输入用户名和密码才能进入系统。

```javaimport javax.swing.*;import java.awt.*;import java.awt.event.*;public class Login extends JFrame implements ActionListener {JLabel lb1, lb2, lb3;JTextField txtName;JPasswordField txtPwd;JButton btnOK, btnCancel;String userName = "admin";// 默认用户名String password = "123456";// 默认密码public Login() {setTitle("学生信息管理系统登录");// 设置窗体标题setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);// 设置窗体关闭方式setSize(350, 200);// 设置窗体大小setLocationRelativeTo(null);// 设置居中显示setLayout(new BorderLayout());JPanel pNorth = new JPanel();lb1 = new JLabel("欢迎使用学生信息管理系统", JLabel.CENTER); lb1.setFont(new Font("微软雅黑", Font.BOLD, 20));pNorth.add(lb1);add(pNorth, BorderLayout.NORTH);JPanel pCenter = new JPanel();pCenter.setLayout(new GridLayout(3, 2));lb2 = new JLabel("用户名:", JLabel.RIGHT);pCenter.add(lb2);txtName = new JTextField(20);pCenter.add(txtName);lb3 = new JLabel("密码:", JLabel.RIGHT);pCenter.add(lb3);txtPwd = new JPasswordField(20);txtPwd.setEchoChar('*');// 设置密码框的回显字符pCenter.add(txtPwd);btnOK = new JButton("登录");pCenter.add(btnOK);btnCancel = new JButton("取消");pCenter.add(btnCancel);add(pCenter, BorderLayout.CENTER);btnOK.addActionListener(this);btnCancel.addActionListener(this);setVisible(true);// 显示窗体}public void actionPerformed(ActionEvent e) {if (e.getSource() == btnOK) {String name = txtName.getText();// 获取用户名String password = new String(txtPwd.getPassword());// 获取密码 if (name.equals(userName) && password.equals(password)) {setVisible(false);new MainFrame();} else {JOptionPane.showMessageDialog(Login.this, "用户名或密码错误！", "登录失败", JOptionPane.ERROR_MESSAGE);}} else if (e.getSource() == btnCancel) {txtName.setText("");txtPwd.setText("");}}public static void main(String[] args) {new Login();}}```2. 主界面代码实现该界面是系统的主界面，包含了菜单栏、工具栏和表格显示区域。

学生信息管理系统完整源代码+mysql文件

数据库所用的数据自己导入MYSQL5.5，Navicat8就可以用了。

下面是具体的数据资料/*MySQL Data TransferSource Host: localhostSource Database: simsTarget Host: localhostTarget Database: simsDate: 2013-6-25 9:24:26*/SET FOREIGN_KEY_CHECKS=0;-- ------------------------------ Table structure for manager-- ----------------------------DROP TABLE IF EXISTS `manager`;CREATE TABLE `manager` (`id` varchar(10) NOT NULL,`name` varchar(30) NOT NULL,`Mima` varchar(20) NOT NULL,PRIMARY KEY (`id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8;-- ------------------------------ Table structure for studentinfo-- ----------------------------DROP TABLE IF EXISTS `studentinfo`;CREATE TABLE `studentinfo` (`Sname` varchar(30) NOT NULL,`Ssex` varchar(10) NOTNULL,`Snumber` varchar(10) NOT NULL,`Sprofession` varchar(30) NOT NULL,`Sclass`varchar(20) NOT NULL,`Sdate` varchar(30) character set utf8 collate utf8_unicode_ciNOT NULL,PRIMARY KEY (`Snumber`)) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='InnoDBfree: 4096 kB';-- ------------------------------ Table structure for userinfo-- ----------------------------DROP TABLE IF EXISTS `userinfo`;CREATE TABLE `userinfo` (`id` varchar(10) NOT NULL,`name` varchar(30) NOT NULL,`Mima` varchar(20) character set utf8 collate utf8_unicode_ci NOT NULL, PRIMARY KEY(`id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8;-- ------------------------------ Records-- ----------------------------INSERT INTO `manager` VALUES ('1', '1', '2');INSERT INTO `manager` VALUES ('2', '恩恩', '123456');INSERT INTO `manager` VALUES ('3', '大大', '123456');INSERT INTO `manager` VALUES ('4', '啊啊', '123456');INSERT INTO `manager` VALUES ('5', '5', '5');INSERT INTO `manager` VALUES ('6', '孙霞', '123456');INSERT INTO `studentinfo` V ALUES ('张三', '男', '2010303755', '数学', '2', '2010-02- 12');INSERT INTO `studentinfo` V ALUES ('李四', '男', '2010303760', '物理', '1', '1995.9.6'); INSERT INTO `studentinfo` V ALUES ('王二', '女', '2010303761', '应数', '2','1990.9.11');INSERT INTO `studentinfo` V ALUES ('麻子', '女', '2010303762', '信计', '1','1999.9.10');INSERT INTO `userinfo` V ALUES ('1', '1', '1');INSERT INTO `userinfo` V ALUES ('13', '13', '1');INSERT INTO `userinfo` V ALUES ('2', '2', '2');INSERT INTO `userinfo` V ALUES ('3', '3', '3');INSERT INTO `userinfo` V ALUES ('6', '6', '6');INSERT INTO `userinfo` V ALUES ('7', '7', '6');下面是相应的程序：package MS;import java.awt.event.ActionEvent;import java.awt.event.ActionListener; import java.awt.Color;import java.awt.Container;import java.awt.Dimension;import java.awt.GridLayout;import java.awt.Toolkit;import java.awt.event.FocusEvent;import java.awt.event.FocusListener;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JTextField;import javax.swing.SwingConstants;public class Add implements ActionListener {JFrame f1;Container ct;JPanel jp,jp1,jp2,jp3;JButton btn1,btn2;JLabel label;JTextField tf1,tf2,tf3,tf4,tf5,tf6;Add(){f1=new JFrame();ct=f1.getContentPane();//初始化面板jp=new JPanel();jp1=new JPanel(new GridLayout(6,1));jp2=new JPanel(new GridLayout(6,1));jp3=new JPanel();btn1=new JButton("确定");btn2=new JButton("取消");label=new JLabel("<html><font color=#CC00FF size='4'>添加学生信息</font>",SwingConstants.CENTER);label.setForeground(Color.gray);tf1=new JTextField(20);tf2=new JTextField(20);tf3=new JTextField(20);tf4=new JTextField(20);tf5=new JTextField(20);tf6=new JTextField(20);tf6.setText("例：2000-02-02");//文本框加入提示语tf6.addFocusListener(new FocusListener(){public void focusGained(FocusEvent e) {tf6.setText("");}public void focusLost(FocusEvent e) {}});jp.add(label);ct.add(jp,"North");jp1.add(new JLabel("姓名",SwingConstants.CENTER));jp2.add(tf1);jp1.add(new JLabel("性别",SwingConstants.CENTER));jp2.add(tf2);jp1.add(new JLabel("学号",SwingConstants.CENTER));jp2.add(tf3);jp1.add(new JLabel("专业",SwingConstants.CENTER));jp2.add(tf4);jp1.add(new JLabel("班级",SwingConstants.CENTER));jp2.add(tf5);jp1.add(new JLabel("入学时间",SwingConstants.CENTER));jp2.add(tf6);jp3.add(btn1);jp3.add(btn2);ct.add(jp1,"West");ct.add(jp2,"East");ct.add(jp3,"South");Toolkit kit=Toolkit.getDefaultToolkit();Dimension screen=kit.getScreenSize();int x=screen.width;int y=screen.height;f1.setSize(350,330);int xcenter=(x-350)/2;int ycenter=(y-330)/2;f1.setLocation(xcenter, ycenter);f1.setVisible(true);//f1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);btn1.addActionListener(this);btn2.addActionListener(this);}public void insert(){if(tf1.getText().equals("")||tf2.getText().equals("")||tf3.getText().equals("")||tf4.getText().equals("")||tf5.getText().equals("")||tf6.getText().equals("")){JOptionPane.showMessageDialog(f1,"请填写完整信息");return;}try{Class.forName("com.mysql.jdbc.Driver");}catch(ClassNotFoundException e){System.out.print("加载驱动程序失败");}String conURL="jdbc:mysql://localhost:3306/sims";try{Connectioncon=DriverManager.getConnection(conURL,"root","123456");Statement st=con.createStatement();String s="insert into studentinfo values('"+tf1.getText()+"','"+tf2.getText()+"','"+tf3.getText()+"','"+tf4.getText()+"','"+tf5.getText()+"','"+tf6.getText()+"');";String query="select * from studentinfo where Snumber='"+tf3.getText().trim()+"'";ResultSet res=st.executeQuery(query);if(res.next()){JOptionPane.showMessageDialog(f1,"学号信息已经存在！");con.close();tf3.setText("");}else if(tf6.getText().length()!=10){JOptionPane.showMessageDialog(f1,"入学时间格式有误!");con.close();tf6.setText("");}int insert=st.executeUpdate(s);if(insert==1){JOptionPane.showMessageDialog(f1,"录入信息成功！");tf1.setText("");tf2.setText("");tf3.setText("");tf4.setText("");tf5.setText("");tf6.setText("");}}catch(SQLException e){System.out.println("错误代码："+e.getErrorCode());System.out.println("错误信息："+e.getMessage());}}@SuppressWarnings("deprecation")public void actionPerformed(ActionEvent e){String cmd=e.getActionCommand();if(cmd.equals("确定")){insert();}else if(cmd.equals("取消")){f1.hide();}}public Container getCt(){return ct;}public void setCt(Container ct){this.ct = ct;}}package MS;import java.awt.BorderLayout;import java.awt.Color;import java.awt.Container;import java.awt.Dimension;import java.awt.Toolkit;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JScrollPane;import javax.swing.JTable;import javax.swing.JTextField;import javax.swing.SwingConstants;public class Delete implements ActionListener {JFrame f2;Container ct;JPanel jp1,jp2,jp3,jp4;JLabel label;JTextField text;JTable table;//接收数据库中返回的信息JButton btn1,btn2,btn3;Object columnName[]={"姓名","性别","学号","专业","班级","入学时间"};Object ar[][]=new Object[80][6];Delete(){f2=new JFrame();ct=f2.getContentPane();jp1=new JPanel();jp2=new JPanel();jp3=new JPanel();jp4=new JPanel();label=new JLabel();text=new JTextField();btn1=new JButton("查询");btn2=new JButton("删除");btn3=new JButton("取消");label=new JLabel("<html><font color=#CC00FF size='4'>请输入要删除的学生姓名:</font>",SwingConstants.CENTER);label.setBackground(Color.blue);table=new JTable(ar,columnName);JScrollPane scroll=new JScrollPane(table);text=new JTextField(20);jp2.add(btn1);jp2.add(btn2);jp2.add(btn3);jp1.add(label);jp1.add(text);ct.add(jp1,"North");jp3.setLayout(new BorderLayout());jp3.add(new JLabel("学生信息如下"));jp3.add(scroll);ct.add(jp2,"South");ct.add(jp3,"Center");Toolkit kit=Toolkit.getDefaultToolkit();Dimension screen=kit.getScreenSize();int x=screen.width;int y=screen.height;f2.setSize(450, 400);int xcenter=(x-450)/2;int ycenter=(y-400)/2;f2.setLocation(xcenter, ycenter);f2.setVisible(true);//f2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);btn1.addActionListener(this);btn2.addActionListener(this);btn3.addActionListener(this);}int i=0;public void show(String s){while(i>=0){ar[i][0]="";ar[i][1]="";ar[i][2]="";ar[i][3]="";ar[i][4]="";ar[i][5]="";i--;}i=0;try{Class.forName("com.mysql.jdbc.Driver");}catch(ClassNotFoundException e){System.out.print("加载驱动程序失败");}String conURL="jdbc:mysql://localhost:3306/sims";try{Connection con=DriverManager.getConnection(conURL,"root","123456");Statement st=con.createStatement();String sql="select * from studentinfo where Sname='"+s+"'";ResultSet res=st.executeQuery(sql);/*if(!(res.next())){JOptionPane.showMessageDialog(f,"所要查询的信息不存在");} */while(res.next()){String sName=res.getString(1);String sSex=res.getString(2);String sNumber=res.getString(3);String sProfession=res.getString(4);String sClass=res.getString(5);String sDate=res.getString(6);ar[i][0]=sName;ar[i][1]=sSex;ar[i][2]=sNumber;ar[i][3]=sProfession;ar[i][4]=sClass;ar[i][5]=sDate;i++;}f2.repaint();con.close();}catch(SQLException e){System.out.println("错误代码："+e.getErrorCode());System.out.println("错误信息："+e.getMessage());}}public void delete(int line){try{Class.forName("com.mysql.jdbc.Driver");}catch(ClassNotFoundException e){System.out.print("加载驱动程序失败");}String conURL="jdbc:mysql://localhost:3306/sims";try{Connection con=DriverManager.getConnection(conURL,"root","123456");Statement st=con.createStatement();String name=(String)(ar[line][2]);String sql="delete from studentinfo where Snumber ='"+name+"'";int del=st.executeUpdate(sql);if(del==1){ar[line][0]="";ar[line][1]="";ar[line][2]="";ar[line][3]="";ar[line][4]="";ar[line][5]="";JOptionPane.showMessageDialog(null,"删除成功！","信息", JOptionPane.YES_NO_OPTION);}con.close();f2.repaint();}catch(SQLException e){System.out.println("错误代码："+e.getErrorCode());System.out.println("错误信息："+e.getMessage());}}@SuppressWarnings("deprecation")public void actionPerformed(ActionEvent e){String cmd=e.getActionCommand();if(cmd.equals("查询")){String qu=text.getText().trim();show(qu);}if(cmd.equals("删除")){int de=table.getSelectedRow();if(de==-1){JOptionPane.showMessageDialog(null,"请选定要删除的行","错误信息", JOptionPane.YES_NO_OPTION);}else{delete(de);}}if(cmd.equals("取消")){f2.hide();}}}package MS;import java.awt.Color;import java.awt.Container;import java.awt.Dimension;import java.awt.Toolkit;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JScrollPane;import javax.swing.JTable;import javax.swing.SwingConstants;public class Liulan implements ActionListener {JFrame f4;Container ct;JPanel jp1,jp2,jp3,jp4;JLabel label;JButton btn1,btn2;JTable table;Object[][] ar=new Object[80][6];Object[] columnName={"姓名","性别","学号","专业","班级","入学时间"};Liulan(){f4=new JFrame();ct=f4.getContentPane();jp1=new JPanel();jp2=new JPanel();jp3=new JPanel();jp4=new JPanel();btn1=new JButton("点击浏览");btn2=new JButton(" 取消");label=new JLabel("<html><font color=#00FF22 size='4'>学生信息浏览<font>",SwingConstants.CENTER);label.setBackground(Color.blue);table=new JTable(ar, columnName);JScrollPane scroll=new JScrollPane(table);jp1.add(label);jp2.add(btn1);jp2.add(btn2);jp3.add(scroll);ct.add(jp1,"North");ct.add(jp3,"Center");ct.add(jp2,"South");Toolkit kit=Toolkit.getDefaultToolkit();Dimension screen=kit.getScreenSize();int x=screen.width;int y=screen.height;f4.setSize(500,530);int xcen=(x-500)/2;int ycen=(y-530)/2;f4.setLocation(xcen,ycen);f4.setVisible(true);btn1.addActionListener(this);btn2.addActionListener(this);}int i=0;public void select(){while(i>=0){ar[i][0]="";ar[i][1]="";ar[i][2]="";ar[i][3]="";ar[i][4]="";ar[i][5]="";i--;}i=0;try{Class.forName("com.mysql.jdbc.Driver");}catch(ClassNotFoundException e){System.out.print("加载驱动程序失败");}String conURL="jdbc:mysql://localhost:3306/sims";try{Connection con=DriverManager.getConnection(conURL,"root","123456");Statement st=con.createStatement();String s="select * from studentinfo";ResultSet res=st.executeQuery(s);while(res.next()){String sName=res.getString(1);String sSex=res.getString(2);String sNumber=res.getString(3);String sProfession=res.getString(4);String sClass=res.getString(5);String sDate=res.getString(6);ar[i][0]=sName;ar[i][1]=sSex;ar[i][2]=sNumber;ar[i][3]=sProfession;ar[i][4]=sClass;ar[i][5]=sDate;i++;}f4.repaint();con.close();}catch(SQLException e){System.out.println("错误代码："+e.getErrorCode());System.out.println("错误信息："+e.getMessage());}}@SuppressWarnings("deprecation")public void actionPerformed(ActionEvent e){// TODO Auto-generated method stubString cmd=e.getActionCommand();if(cmd.equals("点击浏览")){select();}else if(cmd.equals(" 取消")){f4.hide();}}}package MS;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.Color;import java.awt.Container;import java.awt.Dimension;import java.awt.Toolkit;import java.awt.event.ItemEvent;import java.awt.event.ItemListener;import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import java.sql.Connection;import java.sql.DriverManager;import javax.swing.ButtonGroup;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JPasswordField;import javax.swing.JRadioButton;import javax.swing.JTextField;import javax.swing.SwingConstants;@SuppressWarnings("serial")public class Login extends JFrame implements ActionListener {Container cp=null;JFrame f=null;JButton button1,button2,button3;JTextField t1;JPasswordField t2;JLabel jlable1,jlable2;JRadioButton rabtn1,rabtn2;Color c;JPanel jp1,jp2,jp3;String table=null;Login(){f=new JFrame("学生信息管理系统");button1=new JButton("确定");button2=new JButton("取消");button3=new JButton("注册");//button3.setOpaque(false);button3.setBorder(null);button3.setBackground(Color.getColor("#292421"));rabtn1=new JRadioButton("普通用户");rabtn1.setBackground(Color.getColor("#292421"));rabtn2=new JRadioButton("管理员");rabtn2.setBackground(Color.getColor("#292421"));ButtonGroup group=new ButtonGroup();group.add(rabtn1);group.add(rabtn2);cp=f.getContentPane();jlable1=new JLabel("输入用户号");jlable2=new JLabel("输入密码");jp1=new JPanel();jp2=new JPanel();jp3=new JPanel();t1=new JTextField(20);t2=new JPasswordField(20);//jp3.add(group);jp1.add(jlable1);jp1.add(t1);jp1.add(jlable2);jp1.add(t2);jp1.add(rabtn1);jp1.add(rabtn2);jp1.add(button3);JLabel JL=new JLabel("<html><font color=#292421 size='7'><i>欢迎登陆" + "</i></font>",SwingConstants.CENTER);cp.add(JL,"North");jp2.add(button1);jp2.add(button2);cp.add(jp1,"Center");cp.add("South",jp2);cp.setBackground(new Color(127, 255, 212 ));jp2.setBackground(new Color(127, 255, 212 ));jp1.setBackground(new Color(127, 255, 212 ));Toolkit kit=Toolkit.getDefaultToolkit();Dimension screen=kit.getScreenSize();int x=screen.width;int y=screen.height;f.setSize(250,300);int xcenter=(x-300)/2;int ycenter=(y-300)/2;f.setLocation(xcenter,ycenter);/*显示在窗口中央*/f.setVisible(true);//f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//------------------------------------------------------------///*监听事件*/button1.addActionListener(this);button2.addActionListener(this);button3.addActionListener(this);rabtn1.addItemListener(new ItemListener(){public void itemStateChanged(ItemEvent e){JRadioButton jop=(JRadioButton) e.getSource();if (jop.isSelected())table="userinfo";}});rabtn2.addItemListener(new ItemListener(){public void itemStateChanged(ItemEvent e){JRadioButton jop=(JRadioButton) e.getSource();if (jop.isSelected())table="manager";}});f.addWindowListener(new WindowAdapter(){public void windowClosing(WindowEvent e){System.exit(0);}});}@SuppressWarnings("deprecation")public void confirm(String tableName){try{Class.forName("com.mysql.jdbc.Driver");}catch(ClassNotFoundException e){System.out.print("加载驱动程序失败");}String conURL="jdbc:mysql://localhost:3306/sims";try{Connection con=DriverManager.getConnection(conURL,"root","123456");Statement st=con.createStatement();String id=t1.getText().trim();String Mima=t2.getText().trim();String queryMima="select * from "+tableName+" where id='"+id+"' and mima='"+Mima+"'";ResultSet res=st.executeQuery(queryMima);if(res.next()){if(tableName.equals("manager"))new Mstudent(id);else if(tableName.equals("userinfo"))new Ustudent(id);f.hide();con.close();}else{JOptionPane.showMessageDialog(null,"密码错误请重输！！！","提示！",JOptionPane.YES_NO_OPTION);}t1.setText("");t2.setText("");}catch(SQLException g){System.out.println("错误代码："+g.getErrorCode());System.out.println("错误内容："+g.getMessage());}}ItemListener listen=new ItemListener(){public void itemStateChanged(ItemEvent e) {// TODO Auto-generated method stub}};public void actionPerformed(ActionEvent e){String cmd=e.getActionCommand();if(cmd.equals("确定")){if(table==null){JOptionPane.showMessageDialog(f,"请选择用户类型");}confirm(table);}else if(cmd.equals("取消")){f.dispose();}else if(cmd.equals("注册")){new Regist();}}public static void main(String []arg){new Login();}}package MS;import java.awt.BorderLayout;import java.awt.Color;import java.awt.Container;import java.awt.Dimension;import java.awt.Toolkit;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.BorderFactory;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JMenuBar;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JScrollPane;import javax.swing.SwingConstants;import javax.swing.border.TitledBorder;@SuppressWarnings("serial")public class Mstudent extends JFrame implements ActionListener {JButton Query = new JButton("查询信息");JButton add = new JButton("添加信息");JButton delete = new JButton("删除信息");JButton xiugai = new JButton("浏览全部信息");JButton liulan = new JButton("修改密码");JMenuBar mb = new JMenuBar();// 菜单栏JPanel jp = new JPanel();Container cp = getContentPane();String userName;Mstudent(){}Mstudent(String userName){erName = userName;mb.add(Query);mb.add(add);mb.add(delete);mb.add(xiugai);mb.add(liulan);JPanel j=new JPanel();j.add(mb,"Center");cp.add(j, "North");// 设置边框jp.setBorder(BorderFactory.createTitledBorder(BorderFactory.createLineBorder(Color.blue, 2), null, TitledBorder.CENTER,TitledBorder.TOP));jp.setLayout(new BorderLayout());JLabel label1 = new JLabel("欢迎使用学生信息管理系统",SwingConstants.CENTER);jp.add(label1);JScrollPane scrollpane = new JScrollPane(jp);cp.add(scrollpane,"Center");setTitle("欢迎登陆" + "--" + "你好:" + userName);Toolkit kit = Toolkit.getDefaultToolkit();Dimension screen = kit.getScreenSize();int x = screen.width; /* 取得显示器窗口的宽度*/int y = screen.height; /* 取得显示器窗口的高度*/setSize(600, 600);int xcenter = (x - 600) / 2;int ycenter = (y - 600) / 2;setLocation(xcenter, ycenter);/* 显示在窗口中央*/setVisible(true);//setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);// 注册临听器Query.addActionListener(this);add.addActionListener(this);delete.addActionListener(this);xiugai.addActionListener(this);liulan.addActionListener(this);}public void actionPerformed(ActionEvent e){String cmd = e.getActionCommand();if (cmd.equals("查询信息")){new QueryWays();}if (cmd.equals("添加信息")){new Add();}if (cmd.equals("删除信息")){new Delete();}if (cmd.equals("浏览全部信息")){new Liulan();}if (cmd.equals("修改密码")){new UpdateCode();}}public static void main(String[] args){new Mstudent("");}}package MS;import java.awt.Color;import java.awt.Container;import java.awt.Dimension;import java.awt.GridLayout;import java.awt.Toolkit;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JTextField;import javax.swing.SwingConstants;public class Query implements ActionListener {String sql =null;int a;String info;JFrame f3;// Container cp;JPanel jp1,jp2,jp3,jp4,jp,jpwest;JButton btn1,btn2;//确定，取消JLabel label,label2;//标签，请输入姓名（label）JTextField tf,tf1,tf2,tf3,tf4,tf5,tf6;//文本框Query(int a){this.a=a;f3=new JFrame();Container cp=f3.getContentPane();//初始化面板，按钮，标签，文本框jp=new JPanel();jp1=new JPanel();jp2=new JPanel(new GridLayout(6,1));jp3=new JPanel();jp4=new JPanel(new GridLayout(6,1));jpwest=new JPanel();btn1=new JButton("确定");btn2=new JButton("取消");label=new JLabel("<html><font color=#CC00FF size='4'>请输入姓名：" + "</font>",SwingConstants.CENTER);label2=new JLabel("<html><font color=#CC00FF size='4'>请输入学号：" + "</font>",SwingConstants.CENTER);label.setForeground(Color.gray);tf=new JTextField(20);//------------------------------------------------tf1=new JTextField(20);tf2=new JTextField(20);tf3=new JTextField(20);tf4=new JTextField(20);tf5=new JTextField(20);tf6=new JTextField(20);//布局，添加控件if(a==0){jp.add(label);jp.add(tf);}else if(a==1){jp.add(label2);jp.add(tf);}cp.add(jp,"North");jp4.add(new JLabel("姓名",SwingConstants.CENTER));jp2.add(tf1);jp4.add(new JLabel("性别",SwingConstants.CENTER));jp2.add(tf2);jp4.add(new JLabel("学号",SwingConstants.CENTER));jp2.add(tf3);jp4.add(new JLabel("专业",SwingConstants.CENTER));jp2.add(tf4);jp4.add(new JLabel("班级",SwingConstants.CENTER));jp2.add(tf5);jp4.add(new JLabel("入学时间",SwingConstants.CENTER));jp2.add(tf6);jp3.add(btn1);jp3.add(btn2);cp.add(jp4,"West");cp.add(jp2,"East");cp.add(jp3,"South");cp.add(jp1);Toolkit kit=Toolkit.getDefaultToolkit();Dimension screen=kit.getScreenSize();int x=screen.width; //显示窗口宽度int y=screen.height;//窗口高度f3.setSize(350,330);int xcenter=(x-350)/2;int ycenter=(y-330)/2;f3.setLocation(xcenter,ycenter);f3.setVisible(true);//f3.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);btn1.addActionListener(this);btn2.addActionListener(this);/*f3.addWindowListener(new WindowAdapter(){public void windowClosing(WindowEvent e){System.exit(0);}});*/。

学生管理系统c语言简单版

学生管理系统c语言简单版学生管理系统c语言简单版介绍：学生管理系统是一种用于管理学生信息的软件，它可以方便地对学生的基本信息、课程成绩等进行录入、查询、修改和删除等操作。

本文将介绍如何使用C语言编写一个简单的学生管理系统。

功能：1. 添加学生信息2. 查询学生信息3. 修改学生信息4. 删除学生信息5. 显示所有学生信息实现方法：1. 添加学生信息添加学生信息需要输入以下内容：姓名、性别、年龄、班级和电话号码。

我们可以定义一个结构体来存储这些信息，代码如下：```struct Student {char name[20];char sex[10];int age;char class[20];char phone[20];};```然后定义一个数组来存储多个学生的信息：```struct Student students[100];int count = 0; // 学生数量```接下来，我们可以编写一个函数来添加新的学生信息：```void addStudent() {struct Student student;printf("请输入姓名：");scanf("%s", );printf("请输入性别：");scanf("%s", student.sex);printf("请输入年龄：");scanf("%d", &student.age);printf("请输入班级：");scanf("%s", student.class);printf("请输入电话号码：");scanf("%s", student.phone);students[count++] = student; // 将新的学生信息存储到数组中 printf("添加成功！\n");}```2. 查询学生信息查询学生信息可以按照姓名或电话号码进行查询。

Python编写的学生信息管理系统

import timedef addStu(): #添加学生信息print('请输入学生信息')xinxi=['编号：','姓名：','性别：','年龄：','电话：'] stu=[]for i in xinxi:x=input(i)stu.append(x)fa.seek(0,2)fa.write(','.join(stu)+'\n')print('添加学生\'{}\'的信息成功'.format(stu[1]))def readStu(): #显示学生信息fa.seek(0)stu=[]print('编号\t姓名\t性别\t年龄\t电话')for line in fa:stu.append(line.strip('\n').split(','))for i in stu:for j in i:print('{:<4}'.format(j),end='\t')print('')def updateStu(): #修改学生信息num=input('请输入学生编号：')stuOld=[]stu=[]stuNew=[]fa.seek(0)jishu=0for line in fa:stuOld=line.strip('\n').split(',')if stuOld[0]==num:jishu=1print('编号\t姓名\t性别\t年龄\t电话')for row in stuOld:print(row,end='\t')print()while True:print('''请选择要修改的信息1.姓名2.性别3.年龄4.电话0.返回上层菜单''')s=input("请输入你的选择：")if s=='1':xm=input("请输入姓名：")stuOld[1]=xmprint('修改成功')breakelif s=='2':xb=input("请输入性别：")stuOld[2]=xbprint('修改成功')breakelif s=='3':nl=input("请输入年龄：")stuOld[3]=nlprint('修改成功')breakelif s=='4':dh=input("请输入电话：")stuOld[4]=dlprint('修改成功')breakelif s=='0':jishu=2print("12345")breakelse:print("请重新选择")stu.append(stuOld)stuNew=stuOldelse:stu.append(stuOld)fa.close()if jishu==1:fb=open('学生信息表.csv','w')stu.sort()for row in stu:fb.write(','.join(row)+'\n')print('编号\t姓名\t性别\t年龄\t电话')for i in stuNew:print(i,end='\t')print('\n')fb.close()elif jishu==2:passelse:print("没有找到学生信息")def findStu(): #查找学生信息num=input('请输入学生编号：')fa.seek(0)jishu=0for line in fa:stu=line.strip('\n').split(',')if stu[0]==num:jishu+=1print('编号\t姓名\t性别\t年龄\t电话')for i in stu:print(i,end='\t')print()if jishu==0:print("没有找到学生信息,请重新输入")time.sleep(1)findStu()def delStu(): #删除学生信息num=input('请输入学生编号：')stuNew=[]stuOld=[]fa.seek(0)for line in fa:stuOld=line.strip('\n').split(',')if stuOld[0]!=num:stuNew.append(line.strip('\n').split(','))else:print('编号\t姓名\t性别\t年龄\t电话')for i in stuOld:print(i,end='\t')x=input("\n确定要删除这个学生信息吗？（是/否）")if x=='是':print('删除成功！')continueelse:print('未进行任何操作！')stuNew.append(line.strip('\n').split(',')) fb=open('学生信息表.csv','w')for row in stuNew:fb.write(','.join(row)+'\n')fb.close()def sortStu(): #排序fa.seek(0)stu=[]x=1for line in fa:stu.append(line.strip('\n').split(','))stu.sort()fb=open('学生信息表.csv','w')for row in stu:fb.write(','.join(row)+'\n')fb.close()print('排序完成！')def controlStu(): #控制x=input()if x=='1':addStu()elif x=='2':findStu()elif x=='3':updateStu()elif x=='4':delStu()elif x=='5':readStu()elif x=='6':sortStu()elif x=='0':quit()else:print("输入错误，请重新选择")while True:try:fa=open('学生信息表.txt','r+')print('''------欢迎登录学生信息管理系统------ ------------------------------------请选择你要执行的功能：1.添加学生信息2.查找学生信息3.更新学生信息4.删除学生信息5.显示学生信息6.排序学生信息0.退出系统''')controlStu() finally:fa.close()。

Jsp学生信息管理系统登录验证全代码

1.jsp登录界面 Login.jspNo.:00000000000000587 <%@page language="java"contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%><html><head><meta http-equiv="Content-Type"content="text/html;charset=UTF-8"><title>用户登录界面</title></head><form action="LoginServlet"method="post"><body bgcolor="blue"><marquee direction="right"onmouseover="stop()"onmouseout="start()"style="font-family: 楷体_GB2312"><p><font size="10px"color="red">学生信息信息管理系统</font></p></marquee><table align=center width="237"><tr><td><table width=100%><tr><td colspan=6><font size=2><div id="b2bContent"style="FILTER: revealTrans(Duration = 1, Transition =</font></td></tr><tr><td align=center STYLE='cursor: hand'><font size=2><div class="b2bbutton"id="bt0"onclick="javascript:showPage(0);clearTimeout(theTimer);theTimer=s etTimeout('turnPage()',speed);checkBt();">1</div></font></td><td align=center STYLE='cursor: hand'><font size=2><div class="b2bbutton"id="bt1"onclick="javascript:showPage(1);clearTimeout(theTimer);theTimer=s etTimeout('turnPage()',speed);checkBt();">2</div></font></td><td align=center STYLE='cursor: hand'><font size=2><div class="b2bbutton"id="bt2"onclick="javascript:showPage(2);clearTimeout(theTimer);theTimer=s etTimeout('turnPage()',speed);checkBt();">3</div></font></td><td align=center STYLE='cursor: hand'><font size=2><div class="b2bbutton"id="bt3"onclick="javascript:showPage(3);clearTimeout(theTimer);theTimer=s etTimeout('turnPage()',speed);checkBt();">4</div></font></td><td align=center STYLE='cursor: hand'><font size=2><div class="b2bbutton"id="bt4"onclick="javascript:showPage(4);clearTimeout(theTimer);theTimer=s etTimeout('turnPage()',speed);checkBt();">5</div></font></td><td align=center STYLE='cursor: hand'><font size=2><div class="b2bbutton"id="bt5"onclick="javascript:showPage(5);clearTimeout(theTimer);theTimer=s etTimeout('turnPage()',speed);checkBt();">6</div></font></td></tr></table><script language="javascript">b2bStr = new Array();b2bStr[0]= "<div style='float:left; width:100%;overflow:hidden;'><a href=1.gif target=_blank><img src=1.gif width=214px height=145px border=0></a><br><a target=_blank title=太阳岛公园一角 href=1.gif>太阳岛公园一角</a></div>";width:100%;overflow:hidden;'><a href=2.gif target=_blank><img src=2.gif width=214px height=145px border=0></a><br><a target=_blank title=太阳岛公园湖光山色 href=2.gif>太阳岛公园湖光山色</a></div>";b2bStr[2] = "<div style='float:left; width:100%;overflow:hidden;'><a href=3.gif target=_blank><img src=3.gif width=214px height=145px border=0></a><br><a target=_blank title=哈尔滨雪雕 href=3.gif>哈尔滨雪雕</a></div>";b2bStr[3] = "<div style='float:left; width:100%;overflow:hidden;'><a href=4.gif target=_blank><img src=4.gif width=214px height=145px border=0></a><br><a target=_blank title=镜泊湖 href=4.gif>镜泊湖</a></div>";b2bStr[4] = "<div style='float:left; width:100%;overflow:hidden;'><a href=5.gif target=_blank><img src=5.gif width=214px height=145px border=0></a><br><a target=_blank title=太阳岛公园瀑布 href=5.gif>太阳岛公园瀑布</a></div>";b2bStr[5] = "<div style='float:left; width:100%;overflow:hidden;'><a href=6.gif target=_blank><img src=6.gif width=214px height=145px border=0></a><br><a target=_blank title=镜泊湖夜色 href=6.gif>镜泊湖夜色</a></div>";var page=0;var speed=3000;function showPage(id){setTransition();b2bContent.innerHTML=b2bStr[id];b2bContent.filters.revealTrans.play();}function turnPage(){showPage(page);theTimer=setTimeout("turnPage()", speed);checkBt();page++;if(page>=6) page=0;}function checkBt(){for(var i=0;i<6;i++){btObj=eval('bt'+i);if(page==i){btObj.style.color='#FFFFFF';btObj.style.backgroundCol or='#FF781C';}else{btObj.style.color='#000000';btObj.style.backgroundColor='#F7 F7F7';}}}function setTransition(){b2bContent.filters.revealTrans.Transition=Math.round(Math.random( )*23);b2bContent.filters.revealTrans.apply();}turnPage();</script></TD></TR></table><hr color="green"width="540"><table align="center"><tr><td>用户名:<input type="text"name="username"size="8" maxlength="6"></td></tr><tr><td>密    码:<input type="password" name="password"size="10"maxlength="6"></td></tr><tr><td><input type="submit"value="登录">    <input type="reset"value="取消"></td></table></form></body></html>2.java代码(1)User.Java 定义的属性和数据库中的字段相对应package com.softeem.dt;public class User {private int id;private String username;private String password;private String xh;private String college;public int getId(){return id;}public void setId(int id){this.id = id;}public String getUsername() {return username;}ername = username;}public String getPassword() {return password;}public void setPassword(String password) { this.password = password;}public String getXh() {return xh;}public void setXh(String xh) {this.xh = xh;}public String getCollege() {return college;}public void setCollege(String college) { this.college = college;}}(2)UserDAO.java 操作数据库tb_user,验证用户登录package com.softeem.dao;import java.sql.Connection;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.sql.SQLException;import com.softeem.db.DBManager;import er;public class UserDAO {/***验证用户登录*@return*/public boolean checkDenglu(User user) {boolean flag = false;// 获得数据库连接Connection conn = DBManager.getConnection();// 用select * from查询数据库中的所有字段String sql = "select count(*) from tb_user where username=? and password=?";try {PreparedStatement pst = conn.prepareStatement(sql);pst.setString(1, user.getUsername());pst.setString(2, user.getPassword());ResultSet rs = pst.executeQuery();while (rs.next()) {int count = rs.getInt(1);//用count和0比较,若大于0表示该用户存在,否则不存在if(count > 0){flag = true;}}} catch (SQLException e) {e.printStackTrace();}return flag;}}3.LoginServlet,点击登录跳转到服务器端package com.softeem.servlet;import java.io.IOException;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import er;/*** Servlet implementation class LoginServlet*/public class LoginServlet extends HttpServlet {private static final long serialVersionUID = 1L;/*** @see HttpServlet#HttpServlet()*/public LoginServlet() {super();}/*** @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)*/protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { super.doGet(request, response);}/*** @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)*/protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { //获取表单数据//处理乱码request.setCharacterEncoding("utf-8");String username = request.getParameter("username");String password = request.getParameter("password");//封装到user对象中User user = new User();user.setUsername(username);user.setPassword(password);//调用dao的checkLogin方法UserDAO dao = new UserDAO();boolean flag = dao.checkLogin(user);String message = null;String path = null;if(flag){message = "登录成功";path="success.jsp";request.getSession().setAttribute("user", user);}else{message ="对不起密码错误,请重新输入!";path="fail.jsp";}//response返回messageresponse.setCharacterEncoding("utf-8");response.getWriter().write(message);*///属于服务器跳转,浏览器地址栏没有发生改变request.getRequestDispatcher(path).forward(request,response);}}青年人首先要树雄心，立大志，其次就要决心作一个有用的人才。

HTML学生信息管理系统+代码

HTML学生信息管理系统+代码系统设计表单表单包含了一系列输入字段，用于添加或编辑学生信息。

以下是表单的字段：- 姓名- 年龄- 性别- 学号- 专业学生信息展示区域学生信息展示区域用于展示添加或编辑后的学生信息。

该区域通过一个表格来展示学生列表。

CSS 样式系统的CSS 样式用于美化界面，使其更加易于使用和吸引人。

JavaScript 代码系统的 JavaScript 代码用于处理用户的输入，并根据用户操作来更新学生信息展示区域。

以下是系统的主要 JavaScript 函数：- `addStudentInfo()`: 用于添加新的学生信息到学生列表中；- `editStudentInfo()`: 用于编辑学生信息；- `deleteStudentInfo()`: 用于删除学生信息；- `displayStudentInfo()`: 用于展示学生信息；系统实现系统的实现步骤如下：2. 使用 CSS 样式美化界面；3. 在 JavaScript 中定义相应的函数，并使用 DOM 操作来处理用户的输入；5. 运行网页，测试系统的功能。

代码示例以下是一个代码示例，展示如何实现系统的功能。

<head><title>学生信息管理系统</title><style>/* CSS 样式 *//* ... */</style><script>// JavaScript 代码function addStudentInfo() {// 实现添加学生信息的逻辑}function editStudentInfo() {// 实现编辑学生信息的逻辑}function deleteStudentInfo() {// 实现删除学生信息的逻辑}function displayStudentInfo() {// 实现展示学生信息的逻辑}</script></head><body><h1>学生信息管理系统</h1><form><button onclick="addStudentInfo()">添加</button><button onclick="editStudentInfo()">编辑</button><button onclick="deleteStudentInfo()">删除</button></form><div id="studentList"></div></body>总结通过上述的设计和实现，我们成功地创建了一个简单的学生信息管理系统。

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年龄"
.TextMatrix(0,5) = "
系别"
.TextMatrix(0,6) = "
班级"
Do While Not rst.EOF
.Rows=.Rows+ 1.CellAlignment= 8
.TextMatrix(.Rows- 1, 1) =rst.Fields("学号")
.TextMatrix(.Rows- 1, 2) =rst.Fields("姓名")
用户注册.Show
End Sub
3、查询学生信息代码：
Dim cn As New ADODB.Connection
Dim rst As New ADODB.Recordset
Private Sub mand1_Click()
Set cn=New ADODB.Connection
Set rst=New ADODB.Recordset
Trim(bo1.Text)& "'"
rst.Open mysql, cn
If rst.EOF Then
bo1.Text= ""
Else
With MSFlexGrid1
.TextMatrix(0,1) = "
学号"
.TextMatrix(0,2) = "
姓名"
.TextMatrix(0,3) = "
学号")
.TextMatrix(.Rows- 1, 2) =rst.Fields(
姓名")
.TextMatrix(.Rows- 1, 3) =rst.Fields(
性别")
.TextMatrix(.Rows- 1, 4) =rst.Fields(
年龄")
.TextMatrix(.Rows- 1, 5) =rst.Fields(
性别"
.TextMatrix(0,4) = "
年龄"
.TextMatrix(0,5) = "
系别"
.TextMatrix(0,6) = "
班级"
Do #43; 1
.CellAlignment= 8
.TextMatrix(.Rows- 1, 1) =rst.Fields(
.TextMatrix(.Rows- 1, 3) =rst.Fields("性别")
.TextMatrix(.Rows- 1, 4) =rst.Fields("年龄")
.TextMatrix(.Rows- 1, 6) =rst.Fields("班级")
rst.MoveNext
Loop
End With
Private Sub Sselect_Click()查询学生信息.Show
End Sub
Private Sub sustu_Click()查询更新学生信息.Show
End Sub
Private Sub xgmm_Click()
修改密码.Show
End Sub
Private Sub yhzc_Click()
rst.Open mysql, cn
If rst.EOF Then
bo1.Text= ""
Else
With MSFlexGrid1
.TextMatrix(0,1) = "
学号"
.TextMatrix(0,2) = "
姓名"
.TextMatrix(0,3) = "
性别"
.TextMatrix(0,4) = "
mysql="select*from用户表where用户名='" &usna& "'"
rst.Open mysql, cn
If rst.EOF Then
MsgBox"用户名不存在！"
cn.Close
Text1.Text= ""
Text2.Text= ""
Text1.SetFocus
Else
If Trim(rst("密码")) =Trim(Text2.Text) Then
cn.ConnectionString="Provider=SQLOLEDB.1;Persist Security
Info=False;User ID=sa;Initial Catalog=students info;Data Source=C1847"
cn.Open
If bo1.Text<> ""Then
End If
ElseIf Text1.Text<> ""Then
mysql="select*from学生信息表where学号='" &
Trim(Text1.Text)& "'"
Static i%
cn.ConnectionString="Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Initial Catalog=students info;Data Source=C1847"
cn.Open
usna=Trim(Text1.Text)
End If
End If
End If
End Sub
Private Sub mand2_Click()
Text1.Text= ""
Text2.Text= ""
Text3.Text= ""
End Sub
2、管理界面代码：
Private Sub Sinsert_Click()
添加学生信息.Show
End Sub
主要代码如下：
1、登录界面代码：
Dim cn As New ADODB.Connection
Dim rst As New ADODB.Recordset
Private Sub mand1_Click()
Set cn=New ADODB.Connection
Set rst=New ADODB.Recordset
系别")
.TextMatrix(.Rows- 1, 6) =rst.Fields(
班级")
rst.MoveNext
Loop
End With
End If
ElseIf bo2.Text<> ""Then
mysql="select*from学生信息表where班级='" &
Trim(bo2.Text)& "'"
管理界面.Show
Else
i=i+ 1
If i< 3Then
MsgBox"用户名或密码错误！",vbOKOnly+vbExclamation,"
做小II
警告"
cn.Close
Text2.Text= ""
Text1.Text= ""
Text1.SetFocus
Else
MsgBox"该用户已被锁定！",vbOKOnly+vbExclamation,"告"