源代码package lesson2;import java.sql.*;public class employee{public String num;public String name;public String sex;public String age;public String edu;public String sla;public String add;public String tel;public void init(String x1,String x2,String x3,String x4,String x5,String x6,String x7,String x8) {num=x1;name=x2;sex=x3;age=x4;edu=x5;sla=x6;add=x7;tel=x8;}public void load(String f){try{Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");String url="jdbc:sqlserver://localhost:1433;DatabaseName=employee";String userName="sa";String password="xhw";Connection conn=DriverManager.getConnection(url,userName,password);if(conn!=null)System.out.println("已成功地与SQL Server 2005数据库建立连接！"); Statement stmt=conn.createStatement();stmt.executeUpdate(f);stmt.close();}catch(Exception e){e.printStackTrace();}}}package lesson2;import java.awt.*; import java.awt.event.*; import java.sql.*;public class lesson2_1{static Frame f;CardLayout myCard;Panel p1;Panel p2;Panel p3;Panel p4;Panel p5;Panel p6;Panel p7;Panel p8;public static void main(String[] args) {lesson2_1 test=new lesson2_1();test.go1();test.go2();test.go3();test.go4();test.go5();test.go6();test.go7();test.go8();}public void go1(){f=new Frame("呵呵 !!!");myCard=new CardLayout();f.setLayout(myCard);p1=new Panel();Button b1,b2,b3;Label L1;TextField te1;final TextField te2;p1.setLayout(new GridBagLayout());GridBagConstraints c=new GridBagConstraints();Panel p1_1=new Panel();p1_1.setLayout(new GridBagLayout());GridBagConstraints x=new GridBagConstraints();b1=new Button(" 请输入用户名 ");b1.setBackground(Color.CYAN);x.insets=new Insets(50,50,50,50);x.gridx=0;x.gridy=0;x.gridwidth=1;x.gridheight=1;p1_1.add(b1,x);b2=new Button(" 请输入密码 ");b2.setBackground(Color.CYAN); x.gridx=0;x.gridy=5;x.gridwidth=1;x.gridheight=1;p1_1.add(b2,x);te1=new TextField(15);c.insets=new Insets(40,0,40,0);x.gridx=5;x.gridy=0;x.gridwidth=1;x.gridheight=1;p1_1.add(te1,x);te2=new TextField(15);x.gridx=5;x.gridy=5;x.gridwidth=1;x.gridheight=1;p1_1.add(te2,x);L1=new Label(" * * * * * * * * * *欢迎进入职工管理系统* * * * * * * * * * * * * *");L1.setBackground(Color.CYAN);c.gridx=0;c.gridy=0;c.gridwidth=0;c.gridheight=1;p1.add(L1,c);b3=new Button(" 登录 ");b3.setBackground(Color.CYAN);c.gridx=0;c.gridy=10;c.gridwidth=5;c.gridheight=5;p1.add(b3,c);c.gridx=0;c.gridy=20;c.gridwidth=5;c.gridheight=5;p1.add(p1_1,c);p1.setBackground(Color.green);f.add(p1,"First");myCard.show(f,"First");f.setSize(600,600);f.setVisible(true);f.addWindowListener(new WindowAdapter(){public void windowClosing(WindowEvent e){System.exit(0);}});b3.addMouseListener(new MouseAdapter(){public void mouseClicked(MouseEvent e){String x=te2.getText();int y=Integer.parseInt(x);if(y==106)myCard.show(f,"Second");}});}public void go2(){p2=new Panel();Button b1,b2,b3,b4,b5,b6;Label L1;p2.setLayout(new GridBagLayout());GridBagConstraints c=new GridBagConstraints();c.insets=new Insets(50,0,8,0);b1 = new Button("1 职工信息录入");b1.setBackground(Color.CYAN);c.gridx=1;c.gridy=50;c.gridwidth=5;c.gridheight=50;p2.add(b1,c);b2=new Button("2 职工信息浏览"); b2.setBackground(Color.CYAN);c.gridx=1;c.gridy=100;c.gridwidth=5;c.gridheight=50;p2.add(b2,c);b3=new Button("3 职工信息查询"); b3.setBackground(Color.CYAN);c.gridx=1;c.gridy=150;c.gridwidth=5;c.gridheight=50;p2.add(b3,c);b4=new Button("4 职工信息排序"); b4.setBackground(Color.CYAN);c.gridx=1;c.gridwidth=5;c.gridheight=50;p2.add(b4,c);b5=new Button("5 职工信息修改");b5.setBackground(Color.CYAN);c.gridx=1;c.gridy=250;c.gridwidth=5;c.gridheight=50;p2.add(b5,c);b6=new Button("6 职工信息删除");b6.setBackground(Color.CYAN);c.gridx=1;c.gridy=300;c.gridwidth=5;c.gridheight=50;p2.add(b6,c);L1=new Label(" * * * * * * * *欢迎进入职工管理系统* * * * * * * * * *");L1.setBackground(Color.CYAN);c.gridy=0;c.gridwidth=5;c.gridheight=10;p2.add(L1,c);p2.setBackground(Color.green);f.add(p2,"Second");b1.addMouseListener(new MouseAdapter(){ public void mouseClicked(MouseEvent e){myCard.show(f,"Third");}});b2.addMouseListener(new MouseAdapter(){ public void mouseClicked(MouseEvent e){myCard.show(f,"Fourth");}});b3.addMouseListener(new MouseAdapter(){ public void mouseClicked(MouseEvent e){myCard.show(f,"Fifth");}});b4.addMouseListener(new MouseAdapter(){ public void mouseClicked(MouseEvent e){myCard.show(f,"Sixth");}});b5.addMouseListener(new MouseAdapter(){ public void mouseClicked(MouseEvent e){myCard.show(f,"Seventh");}});b6.addMouseListener(new MouseAdapter(){ public void mouseClicked(MouseEvent e){myCard.show(f,"Eighth");}});}public void go3(){p3=new Panel();p3.setLayout(new GridBagLayout());GridBagConstraints c=new GridBagConstraints();Button b1,b2,b3,b4,b5,b6,b7,b8,b9,b10;final TextField te1,te2,te3,te4,te5,te6,te7,te8;Label L1;c.insets=new Insets(60,50,0,0);L1=new Label("* * * * * * * * * * * * * * * 请输入下面信息 * * * * * * * * * * * * * * * *");L1.setBackground(Color.CYAN);c.gridx=0;c.gridy=0;c.gridwidth=0;c.gridheight=1;p3.add(L1,c);b1=new Button(" 工号 ");b1.setBackground(Color.CYAN);c.gridx=0;c.gridy=10;c.gridwidth=1;c.gridheight=1;p3.add(b1,c);b2=new Button(" 姓名 "); b2.setBackground(Color.CYAN);c.gridx=35;c.gridy=10;c.gridwidth=1;c.gridheight=1;p3.add(b2,c);b3=new Button(" 性别 "); b3.setBackground(Color.CYAN);c.gridx=0;c.gridy=30;c.gridwidth=1;c.gridheight=1;p3.add(b3,c);b4=new Button(" 年龄 "); b4.setBackground(Color.CYAN);c.gridx=35;c.gridy=30;c.gridwidth=1;c.gridheight=1;p3.add(b4,c);b5=new Button(" 学历 "); b5.setBackground(Color.CYAN);c.gridx=0;c.gridy=50;c.gridwidth=1;c.gridheight=1;p3.add(b5,c);b6=new Button(" 工资 "); b6.setBackground(Color.CYAN);c.gridx=35;c.gridy=50;c.gridwidth=1;c.gridheight=1;p3.add(b6,c);b7=new Button(" 住址 ");b7.setBackground(Color.CYAN);c.gridx=0;c.gridy=70;c.gridwidth=1;c.gridheight=1;p3.add(b7,c);b8=new Button(" 电话 ");b8.setBackground(Color.CYAN);c.gridx=35;c.gridy=70;c.gridwidth=1;c.gridheight=1;p3.add(b8,c);b9=new Button(" 提交 "); b9.setBackground(Color.CYAN);c.gridx=10;c.gridy=100;c.gridwidth=1;c.gridheight=1;p3.add(b9,c);b10=new Button(" 返回 "); b10.setBackground(Color.CYAN);c.gridx=35;c.gridy=100;c.gridwidth=1;c.gridheight=1;p3.add(b10,c);te1=new TextField(10);c.gridx=10;c.gridy=10;c.gridwidth=1;c.gridheight=1;p3.add(te1,c);te2=new TextField(10);c.gridx=37;c.gridy=10;c.gridwidth=1;c.gridheight=1;p3.add(te2,c);te3=new TextField(10);c.gridx=10;c.gridy=30;c.gridwidth=1;c.gridheight=1;p3.add(te3,c);te4=new TextField(10);c.gridx=37;c.gridy=30;c.gridwidth=1;c.gridheight=1;p3.add(te4,c);te5=new TextField(10);c.gridx=10;c.gridy=50;c.gridwidth=1;c.gridheight=1;p3.add(te5,c);te6=new TextField(10);c.gridx=37;c.gridy=50;c.gridwidth=1;c.gridheight=1;p3.add(te6,c);te7=new TextField(10);c.gridx=10;c.gridy=70;c.gridwidth=1;c.gridheight=1;p3.add(te7,c);te8=new TextField(10);c.gridx=37;c.gridy=70;c.gridwidth=1;c.gridheight=1;p3.add(te8,c);p3.setBackground(Color.green);f.add(p3,"Third");b9.addMouseListener(new MouseAdapter(){ public void mouseClicked(MouseEvent e){employee e1=new employee();e1.init(te1.getText(),te2.getText(),te3.getText(),te4.getText(),te5.getText(),te6.getText(),te7.getText(),te8.getText());String x="'";String y="'";String z=",";String w=")";String sql="insert into xhw values(";sql=sql+x+e1.num+y+z+x++y+z+x+e1.sex+y+z+x+e1.age+y+z+x++y+z +x+e1.sla+y+z+x+e1.add+y+z+x+e1.tel+y+w;e1.load(sql);te1.setText("");te2.setText("");te3.setText("");te4.setText("");te5.setText("");te6.setText("");te7.setText("");te8.setText("");}});b10.addMouseListener(new MouseAdapter(){public void mouseClicked(MouseEvent e){myCard.show(f,"Second");}});}public void go4(){p4=new Panel();p4.setLayout(new GridBagLayout());GridBagConstraints c=new GridBagConstraints();Button b1,b2;Label L1;final TextArea ta;c.insets=new Insets(60,0,0,0);L1=new Label("* * * * * * * * * * * * * * * 欢迎进入信息浏览界面 * * * * * * * * * * * * * * * *");L1.setBackground(Color.CYAN);c.gridx=0;c.gridy=0;c.gridwidth=0;c.gridheight=1;p4.add(L1,c);b1=new Button(" 浏览 ");b1.setBackground(Color.CYAN);c.gridx=0;c.gridy=10;c.gridwidth=1;c.gridheight=1;p4.add(b1,c);b2=new Button(" 返回 ");b2.setBackground(Color.CYAN);c.gridx=0;c.gridy=20;c.gridwidth=1;c.gridheight=1;p4.add(b2,c);ta= new TextArea(15,50);c.gridx=0;c.gridy=11;c.gridwidth=1;c.gridheight=1;p4.add(ta,c);p4.setBackground(Color.green);f.add(p4,"Fourth");b1.addMouseListener(new MouseAdapter(){public void mouseClicked(MouseEvent e){try{Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");String url="jdbc:sqlserver://localhost:1433;DatabaseName=employee";String userName="sa";String password="xhw";Connection conn=DriverManager.getConnection(url,userName,password);Statement stmt=conn.createStatement();ResultSet rs=stmt.executeQuery("select * from xhw");employee[] em =new employee[10];int i=0;while(rs.next()){employee em1=new employee();em1.num=rs.getString("工号");=rs.getString("姓名");em1.sex=rs.getString("性别");em1.age=rs.getString("年龄");=rs.getString("学历");em1.sla=rs.getString("工资");em1.add=rs.getString("住址");em1.tel=rs.getString("电话");em[i]=em1;i++;}String s = "工号\t姓名\t性别\t年龄\t学历\t工资\t住址\t电话\n";for(int j=0;j<i;j++){s=s+em[j].num+"\t"+em[j].name+"\t"+em[j].sex+"\t"+em[j].age+"\t"+em[j].edu+"\t"+em[j].sla+"\t"+em[j].add+"\t"+em[j].tel+"\n\n";}ta.setText(s);rs.close();stmt.close();}catch(Exception e1){ e1.printStackTrace();}}});b2.addMouseListener(new MouseAdapter(){public void mouseClicked(MouseEvent e){ta.setText("");myCard.show(f,"Second");}});}public void go5(){p5=new Panel();p5.setLayout(new GridBagLayout());GridBagConstraints c=new GridBagConstraints();c.insets=new Insets(40,0,0,0);Panel p5_2=new Panel();p5_2.setLayout(new GridBagLayout());GridBagConstraints x=new GridBagConstraints();x.insets=new Insets(30,60,0,80);Button b1,b2,b3,b4;final TextField t1;final TextField t2;final TextArea ta;Label L1;b1=new Button(" 查询名称 ");b1.setBackground(Color.CYAN);x.gridx=0;x.gridy=0;x.gridwidth=2;x.gridheight=1;p5_2.add(b1,x);b2=new Button(" 查询范围 "); b2.setBackground(Color.CYAN);x.gridx=0;x.gridy=5;x.gridwidth=2;x.gridheight=1;p5_2.add(b2,x);b3=new Button(" 查询 "); b3.setBackground(Color.CYAN);x.gridx=0;x.gridy=10;x.gridwidth=2;x.gridheight=1;p5_2.add(b3,x);b4=new Button(" 返回 ");b4.setBackground(Color.CYAN);x.gridx=20;x.gridy=10;x.gridwidth=1;x.gridheight=1;p5_2.add(b4,x);t1 = new TextField(10);x.gridx=20;x.gridy=0;x.gridwidth=1;x.gridheight=1;p5_2.add(t1,x);t2=new TextField(10);x.gridx=20;x.gridy=5;x.gridwidth=1;x.gridheight=1;p5_2.add(t2,x);L1=new Label(" * * * * * * * * * * * 欢迎进入职工信息查询界面 * * * * * * * * * * *");L1.setBackground(Color.CYAN);c.gridx=0;c.gridy=0;c.gridwidth=0;c.gridheight=1;p5.add(L1,c);c.gridx=0;c.gridy=5;c.gridwidth=1;c.gridheight=1;p5.add(p5_2,c);ta= new TextArea(10,65);c.gridx=0;c.gridy=10;c.gridwidth=1;c.gridheight=1;p5.add(ta,c);p5.setBackground(Color.green);f.add(p5,"Fifth");b4.addMouseListener(new MouseAdapter(){public void mouseClicked(MouseEvent e){t1.setText("");t2.setText("");ta.setText("");myCard.show(f,"Second");}});b3.addMouseListener(new MouseAdapter(){public void mouseClicked(MouseEvent e){try{Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");String url="jdbc:sqlserver://localhost:1433;DatabaseName=employee";String userName="sa";String password="xhw";Connection conn=DriverManager.getConnection(url,userName,password);Statement stmt=conn.createStatement();String sql="select * from xhw where ";String sql1=t1.getText();String sql2=t2.getText();sql=sql+sql1+"'"+sql2+"'";ResultSet rs=stmt.executeQuery(sql);employee[] em =new employee[10];int i=0;while(rs.next()){employee em1=new employee();em1.num=rs.getString("工号");=rs.getString("姓名");em1.sex=rs.getString("性别");em1.age=rs.getString("年龄");=rs.getString("学历");em1.sla=rs.getString("工资");em1.add=rs.getString("住址");em1.tel=rs.getString("电话");em[i]=em1;i++;}String s = " 工号\t姓名\t性别\t年龄\t学历\t工资\t住址\t电话\n";for(int j=0;j<i;j++){s=s+" "+em[j].num+"\t"+em[j].name+"\t"+em[j].sex+"\t"+em[j].age+"\t"+em[j].edu+"\t"+em[j].sla+"\t"+em[j].add+"\t"+em[j].tel+"\n\n";}ta.setText(s);rs.close();stmt.close();}catch(Exception e1){ e1.printStackTrace();}}});}public void go6(){p6=new Panel();p6.setLayout(new GridBagLayout()); GridBagConstraints c=new GridBagConstraints();c.insets=new Insets(60,0,30,0);Panel p6_1=new Panel();p6_1.setLayout(new GridBagLayout()); GridBagConstraints x=new GridBagConstraints(); x.insets=new Insets(0,40,0,40);Label L1;Button b1,b2,b3;final TextArea ta;b1=new Button("按年龄排序");x.gridx=0;x.gridy=0;x.gridwidth=1;x.gridheight=1;p6_1.add(b1,x);b2=new Button("按工资排序");x.gridx=10;x.gridy=0;x.gridheight=1;p6_1.add(b2,x);b3=new Button(" 返回 ");x.gridx=15;x.gridy=0;x.gridwidth=1;x.gridheight=1;p6_1.add(b3,x);L1=new Label(" * * * * * * * * * * * 欢迎进入职工信息查询界面 * * * * * * * * * * *");L1.setBackground(Color.CYAN);c.gridx=0;c.gridy=0;c.gridwidth=1;c.gridheight=1;p6.add(L1,c);c.gridx=0;c.gridy=5;c.gridwidth=1;p6.add(p6_1,c);ta=new TextArea(10,65);c.gridx=0;c.gridy=10;c.gridwidth=1;c.gridheight=1;p6.add(ta,c);p6.setBackground(Color.green);f.add(p6,"Sixth");b1.addMouseListener(new MouseAdapter(){public void mouseClicked(MouseEvent e){try{Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");String url="jdbc:sqlserver://localhost:1433;DatabaseName=employee";String userName="sa";String password="xhw";Connection conn=DriverManager.getConnection(url,userName,password);Statement stmt=conn.createStatement();ResultSet rs=stmt.executeQuery("select * from xhw");employee[] em =new employee[10];int i=0;while(rs.next()){employee em1=new employee();em1.num=rs.getString("工号");=rs.getString("姓名");em1.sex=rs.getString("性别");em1.age=rs.getString("年龄");=rs.getString("学历");em1.sla=rs.getString("工资");em1.add=rs.getString("住址");em1.tel=rs.getString("电话");em[i]=em1;i++;}employee zz ;int x,y;for(int f=1;f<i-1;f++)for(int k=f+1;k<i;k++){x=Integer.parseInt(em[f].age);y=Integer.parseInt(em[k].age);if(x>y){zz=em[f];em[f]=em[k];em[k]=zz;}}String s = " "+"工号\t姓名\t性别\t年龄\t学历\t工资\t住址\t电话\n"; for(int j=0;j<i;j++){s=s+" "+em[j].num+"\t"+em[j].name+"\t"+em[j].sex+"\t"+em[j].age+"\t"+em[j].edu+"\t"+em[j].sla+"\t"+em[j].add+"\t"+em[j].tel+"\n\n";}ta.setText(s);rs.close();stmt.close();}catch(Exception e1){ e1.printStackTrace();}}});b2.addMouseListener(new MouseAdapter(){public void mouseClicked(MouseEvent e){try{Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");String url="jdbc:sqlserver://localhost:1433;DatabaseName=employee"; String userName="sa";String password="xhw";Connection conn=DriverManager.getConnection(url,userName,password);Statement stmt=conn.createStatement();ResultSet rs=stmt.executeQuery("select * from xhw");employee[] em =new employee[10];int i=0;while(rs.next()){employee em1=new employee();em1.num=rs.getString("工号");=rs.getString("姓名");em1.sex=rs.getString("性别");em1.age=rs.getString("年龄");=rs.getString("学历");em1.sla=rs.getString("工资");em1.add=rs.getString("住址");em1.tel=rs.getString("电话");em[i]=em1;i++;}employee zz ;int x,y;for(int f=1;f<i-1;f++)for(int k=f+1;k<i;k++){x=Integer.parseInt(em[f].sla);y=Integer.parseInt(em[k].sla);if(x>y){zz=em[f];em[f]=em[k];em[k]=zz;}}String s = " "+"工号\t姓名\t性别\t年龄\t学历\t工资\t住址\t电话\n";for(int j=0;j<i;j++){s=s+" "+em[j].num+"\t"+em[j].name+"\t"+em[j].sex+"\t"+em[j].age+"\t"+em[j].edu+"\t"+em[j].sla+"\t"+em[j].add+"\t"+em[j].tel+"\n\n";}ta.setText(s);rs.close();stmt.close();}catch(Exception e1){ e1.printStackTrace();}}});b3.addMouseListener(new MouseAdapter(){public void mouseClicked(MouseEvent e){ta.setText("");myCard.show(f,"Second");}});}public void go7(){p7=new Panel();p7.setLayout(new GridBagLayout());GridBagConstraints c=new GridBagConstraints();c.insets=new Insets(40,0,50,0);Panel p7_1=new Panel();p7_1.setLayout(new GridBagLayout());GridBagConstraints x=new GridBagConstraints();x.insets=new Insets(30,60,0,80);Label L1;Button b1,b2,b3,b4,b5,b6,b7;final TextField t1;final TextField t2;final TextField t3;b1=new Button(" 信息编号 ");b1.setBackground(Color.CYAN);x.gridx=0;x.gridy=0;x.gridwidth=1;x.gridheight=1;p7_1.add(b1,x);b2=new Button(" 修改名称");b2.setBackground(Color.CYAN);x.gridx=0;x.gridy=5;x.gridwidth=1;x.gridheight=1;p7_1.add(b2,x);b3=new Button(" 修改值"); b3.setBackground(Color.CYAN);x.gridx=0;x.gridy=10;x.gridwidth=1;x.gridheight=1;p7_1.add(b3,x);b4=new Button(" 修改 "); b4.setBackground(Color.CYAN);x.gridx=0;x.gridy=15;x.gridwidth=1;x.gridheight=1;p7_1.add(b4,x);b5=new Button(" 返回"); b5.setBackground(Color.CYAN);x.gridx=10;x.gridy=15;x.gridwidth=1;x.gridheight=1;p7_1.add(b5,x);b6=new Button(" 查询");b6.setBackground(Color.CYAN);x.gridx=0;x.gridy=20;x.gridwidth=1;x.gridheight=1;p7_1.add(b6,x);b7=new Button(" 继续"); b7.setBackground(Color.CYAN);x.gridx=10;x.gridy=20;x.gridwidth=1;x.gridheight=1;p7_1.add(b7,x);t1=new TextField(16);x.gridx=10;x.gridy=0;x.gridwidth=1;x.gridheight=1;p7_1.add(t1,x);t2=new TextField(16);x.gridx=10;x.gridy=5;x.gridwidth=1;x.gridheight=1;p7_1.add(t2,x);t3=new TextField(16);x.gridx=10;x.gridy=10;x.gridwidth=1;x.gridheight=1;p7_1.add(t3,x);L1=new Label(" * * * * * * * * * * * 欢迎进入职工信息修改界面 * * * * * * * * * * *");L1.setBackground(Color.CYAN);c.gridx=0;c.gridy=0;c.gridwidth=1;c.gridheight=1;p7.add(L1,c);c.gridx=0;c.gridy=10;c.gridwidth=1;c.gridheight=1;p7.add(p7_1,c);p7.setBackground(Color.green);f.add(p7,"Seventh");b4.addMouseListener(new MouseAdapter(){public void mouseClicked(MouseEvent e){employee e1=new employee();String sql;sql="update xhw set "+t2.getText()+"="+"'"+t3.getText()+"'"+"where 工号='"+t1.getText()+"'";System.out.println(sql);e1.load(sql);t1.setText("");t2.setText("");t3.setText("");}});b5.addMouseListener(new MouseAdapter(){public void mouseClicked(MouseEvent e)myCard.show(f,"Second");}});b6.addMouseListener(new MouseAdapter(){ public void mouseClicked(MouseEvent e){myCard.show(f,"Fifth");}});b7.addMouseListener(new MouseAdapter(){ public void mouseClicked(MouseEvent e){t1.setText("");t2.setText("");t3.setText("");}}public void go8(){p8=new Panel();p8.setLayout(new GridBagLayout());GridBagConstraints c=new GridBagConstraints();c.insets=new Insets(10,0,70,0);Panel p8_1=new Panel();p8_1.setLayout(new GridBagLayout());GridBagConstraints x=new GridBagConstraints();x.insets=new Insets(80,60,0,80);Button b1,b2,b3;Label L1;final TextField t1;b1=new Button(" 工号 ");b1.setBackground(Color.CYAN);x.gridx=0;x.gridy=0;。