diff --git a/0307.1 b/0307.1
new file mode 100644
index 0000000000000000000000000000000000000000..465f90d147f454d9de3b09c72203c0ab9f9ba33a
--- /dev/null
+++ b/0307.1
@@ -0,0 +1,264 @@
+package java2020spring;
+
+
+
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.ItemEvent;
+import java.awt.event.ItemListener;
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+
+import javax.swing.*;
+ 
+public class Test extends JFrame{
+ 
+ public Test()
+ {
+  super("文本编辑器");
+  
+ 
+  JMenuBar mBar = new JMenuBar();
+  
+  this.setJMenuBar(mBar);
+  
+  
+  JMenu file = new JMenu("文件");
+  JMenu edit = new JMenu("编辑");
+  JMenu form = new JMenu("格式");
+  JMenu help = new JMenu("帮助");
+  JMenu look=new JMenu("查看");
+  
+ 
+  mBar.add(file);
+  mBar.add(edit);
+  mBar.add(form);
+  mBar.add(look);
+  mBar.add(help);
+ 
+     
+  JTextArea workArea = new JTextArea();
+     JScrollPane imgScrollPane = new JScrollPane(workArea); 
+    
+     add(imgScrollPane,BorderLayout.CENTER);  
+     
+   
+     FileDialog openDia;
+  FileDialog saveDia;  
+
+        openDia = new FileDialog(this,"打开(N)",FileDialog.LOAD);  
+        saveDia = new FileDialog(this,"另存为(A)",FileDialog.SAVE);  
+   
+     
+     JMenuItem item1_1 = new JMenuItem("新建(O)");
+     item1_1.addActionListener(new ActionListener(){
+      public void actionPerformed(ActionEvent e){
+        workArea.setText("");
+      }
+     });
+     JMenuItem item1_2 = new JMenuItem("打开(N)");
+     item1_2.addActionListener(new ActionListener(){
+      public void actionPerformed(ActionEvent e){
+       openDia.setVisible(true);
+       
+       String dirPath = openDia.getDirectory();
+                String fileName = openDia.getFile();
+                
+             
+                if(dirPath == null || fileName == null){
+                 return;
+                }
+                
+                workArea.setText("");
+                
+                File fileO = new File(dirPath,fileName); 
+                
+                try{
+                 BufferedReader bufr = new BufferedReader(new FileReader(fileO));
+                 
+                 String line = null;
+                 
+                 while((line = bufr.readLine()) != null){
+                  workArea.append(line + "\r\n");
+                 }
+                 
+                 bufr.close(); 
+                }catch(IOException er1){
+                 throw new RuntimeException("文件读取失败！"); 
+                }
+                
+      }
+     });
+     JMenuItem item1_3 = new JMenuItem("保存(S)");
+     item1_3.addActionListener(new ActionListener(){
+      public void actionPerformed(ActionEvent e){
+       File fileS = null;
+       if(fileS == null){
+        saveDia.setVisible(true);  
+                    String dirPath = saveDia.getDirectory();  
+                    String fileName = saveDia.getFile();  
+                    
+                    if(dirPath == null || fileName == null)
+                     return;
+                    
+                    fileS = new File(dirPath,fileName);  
+       }
+       
+       try{
+        BufferedWriter bufw = new BufferedWriter(new FileWriter(fileS));
+        String text = workArea.getText();
+        bufw.write(text);
+        bufw.close();
+       }catch(IOException er){
+        throw new RuntimeException("文件保存失败！"); 
+       }
+      }
+     });
+     JMenuItem item1_4 = new JMenuItem("另存为(A)");
+     item1_4.addActionListener(new ActionListener(){
+      public void actionPerformed(ActionEvent e){
+       File fileS = null;
+       if(fileS == null){
+        saveDia.setVisible(true);  
+                    String dirPath = saveDia.getDirectory();  
+                    String fileName = saveDia.getFile();  
+                    
+                    if(dirPath == null || fileName == null)
+                     return;
+                    
+                    fileS = new File(dirPath,fileName);  
+       }
+       
+       try{
+        BufferedWriter bufw = new BufferedWriter(new FileWriter(fileS));
+        String text = workArea.getText();
+        bufw.write(text);
+        bufw.close();
+       }catch(IOException er){
+        throw new RuntimeException("文件保存失败！"); 
+       }
+      }
+     });
+     JMenuItem item1_5 = new JMenuItem("退出(Q)");
+     item1_5.addActionListener(new ActionListener(){
+      public void actionPerformed(ActionEvent e){
+       System.exit(0);
+      }
+     });
+     
+     JMenuItem item2_1 = new JMenuItem("剪切(X)");
+     JMenuItem item2_2 = new JMenuItem("复制(C)");
+     JMenuItem item2_3 = new JMenuItem("粘贴(V)");
+     
+     JRadioButtonMenuItem item3_1 = new JRadioButtonMenuItem("自动换行(W)",false);
+     item3_1.addActionListener(new ActionListener(){
+      public void actionPerformed(ActionEvent e){
+       Object source = e.getSource();
+       
+       if(source == item3_1)
+        workArea.setLineWrap(true);   
+       else if(source != item3_1)
+        workArea.setLineWrap(false);
+      }
+     });
+     
+     JMenuItem item5_1 = new JMenuItem("状态栏(K)");
+  
+    
+
+     JMenuItem item4_1 = new JMenuItem("查看帮助(H)");
+     item4_1.addActionListener(new ActionListener(){
+      public void actionPerformed(ActionEvent event){
+       new LookHelp();
+      }
+     });
+     JMenuItem item4_2 = new JMenuItem("关于记事本(A)");
+     item4_2.addActionListener(new ActionListener(){
+      public void actionPerformed(ActionEvent event){
+       new AboutBook();
+      }
+     });
+     
+    
+     file.add(item1_1);file.add(item1_2);file.add(item1_3);file.add(item1_4);file.add(item1_5);
+     edit.add(item2_1);edit.add(item2_2);edit.add(item2_3);
+     form.add(item3_1);
+     help.add(item4_1);help.add(item4_2);
+     look.add(item5_1);
+     
+     
+ }
+ 
+ public static void main(String args[])
+ {
+  Test app = new Test();
+  
+  app.setSize(600, 400);
+  app.setLocation(200,200);
+  app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+  app.setVisible(true);
+ }
+
+	 
+}
+
+package java2020spring;
+
+
+	import javax.swing.*;
+	 
+	import java.awt.*;
+	 
+	@SuppressWarnings("serial")
+	public class LookHelp extends JFrame{
+	 
+	 public LookHelp(){
+	  super("查看帮助");
+	  this.setSize(500, 300);
+	  this.setLocation(200,300);
+	  this.setResizable(false);
+	  this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
+	  this.setVisible(true);
+	  
+	  Container c = this.getContentPane();
+	  c.setLayout(new GridLayout(5,0));
+	  
+	  JLabel label1 = new JLabel("1、菜单栏的菜单项可点击来选择功能。");
+	  JLabel label2 = new JLabel("2、“编辑”里的剪切、复制、粘贴可用快捷键Ctrl + x、Ctrl + c、Ctrl + v实现。");
+	  JLabel label3 = new JLabel("3、“格式”里的“自动换行”需要点中才可进行自动换行。");
+	 
+	  c.add(label1);c.add(label2);c.add(label3);
+	 }
+	}
+
+
+
+package java2020spring;
+
+
+
+	 
+	import javax.swing.*;
+	 
+	@SuppressWarnings("serial")
+	public class AboutBook extends JFrame{
+	 public AboutBook(){
+	  super("关于记事本");
+	  this.setSize(220, 100);
+	  this.setLocation(200,300);
+	  this.setResizable(false);
+	  this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
+	  this.setVisible(true);
+	  
+	  JPanel panel = new JPanel();
+	  JLabel label = new JLabel("版本2021H2");
+	  
+	  panel.add(label);
+	  this.add(panel);
+	 }
+	}
\ No newline at end of file
diff --git a/0307/.keep b/0307/.keep
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/gsj b/gsj
new file mode 100644
index 0000000000000000000000000000000000000000..662abc9e12f101d49cbe7aff6f11ed39991906c8
--- /dev/null
+++ b/gsj
@@ -0,0 +1,209 @@
+package java2020spring;
+
+
+
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.ItemEvent;
+import java.awt.event.ItemListener;
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+
+import javax.swing.*;
+ 
+public class Test extends JFrame{
+ 
+ public Test()
+ {
+  super("文本编辑器");
+  
+ 
+  JMenuBar mBar = new JMenuBar();
+  
+  this.setJMenuBar(mBar);
+  
+  
+  JMenu file = new JMenu("文件");
+  JMenu edit = new JMenu("编辑");
+  JMenu form = new JMenu("格式");
+  JMenu help = new JMenu("帮助");
+  JMenu look=new JMenu("查看");
+  
+ 
+  mBar.add(file);
+  mBar.add(edit);
+  mBar.add(form);
+  mBar.add(look);
+  mBar.add(help);
+ 
+     
+  JTextArea workArea = new JTextArea();
+     JScrollPane imgScrollPane = new JScrollPane(workArea); 
+    
+     add(imgScrollPane,BorderLayout.CENTER);  
+     
+   
+     FileDialog openDia;
+  FileDialog saveDia;  
+
+        openDia = new FileDialog(this,"打开(N)",FileDialog.LOAD);  
+        saveDia = new FileDialog(this,"另存为(A)",FileDialog.SAVE);  
+   
+     
+     JMenuItem item1_1 = new JMenuItem("新建(O)");
+     item1_1.addActionListener(new ActionListener(){
+      public void actionPerformed(ActionEvent e){
+        workArea.setText("");
+      }
+     });
+     JMenuItem item1_2 = new JMenuItem("打开(N)");
+     item1_2.addActionListener(new ActionListener(){
+      public void actionPerformed(ActionEvent e){
+       openDia.setVisible(true);
+       
+       String dirPath = openDia.getDirectory();
+                String fileName = openDia.getFile();
+                
+             
+                if(dirPath == null || fileName == null){
+                 return;
+                }
+                
+                workArea.setText("");
+                
+                File fileO = new File(dirPath,fileName); 
+                
+                try{
+                 BufferedReader bufr = new BufferedReader(new FileReader(fileO));
+                 
+                 String line = null;
+                 
+                 while((line = bufr.readLine()) != null){
+                  workArea.append(line + "\r\n");
+                 }
+                 
+                 bufr.close(); 
+                }catch(IOException er1){
+                 throw new RuntimeException("文件读取失败！"); 
+                }
+                
+      }
+     });
+     JMenuItem item1_3 = new JMenuItem("保存(S)");
+     item1_3.addActionListener(new ActionListener(){
+      public void actionPerformed(ActionEvent e){
+       File fileS = null;
+       if(fileS == null){
+        saveDia.setVisible(true);  
+                    String dirPath = saveDia.getDirectory();  
+                    String fileName = saveDia.getFile();  
+                    
+                    if(dirPath == null || fileName == null)
+                     return;
+                    
+                    fileS = new File(dirPath,fileName);  
+       }
+       
+       try{
+        BufferedWriter bufw = new BufferedWriter(new FileWriter(fileS));
+        String text = workArea.getText();
+        bufw.write(text);
+        bufw.close();
+       }catch(IOException er){
+        throw new RuntimeException("文件保存失败！"); 
+       }
+      }
+     });
+     JMenuItem item1_4 = new JMenuItem("另存为(A)");
+     item1_4.addActionListener(new ActionListener(){
+      public void actionPerformed(ActionEvent e){
+       File fileS = null;
+       if(fileS == null){
+        saveDia.setVisible(true);  
+                    String dirPath = saveDia.getDirectory();  
+                    String fileName = saveDia.getFile();  
+                    
+                    if(dirPath == null || fileName == null)
+                     return;
+                    
+                    fileS = new File(dirPath,fileName);  
+       }
+       
+       try{
+        BufferedWriter bufw = new BufferedWriter(new FileWriter(fileS));
+        String text = workArea.getText();
+        bufw.write(text);
+        bufw.close();
+       }catch(IOException er){
+        throw new RuntimeException("文件保存失败！"); 
+       }
+      }
+     });
+     JMenuItem item1_5 = new JMenuItem("退出(Q)");
+     item1_5.addActionListener(new ActionListener(){
+      public void actionPerformed(ActionEvent e){
+       System.exit(0);
+      }
+     });
+     
+     JMenuItem item2_1 = new JMenuItem("剪切(X)");
+     JMenuItem item2_2 = new JMenuItem("复制(C)");
+     JMenuItem item2_3 = new JMenuItem("粘贴(V)");
+     
+     JRadioButtonMenuItem item3_1 = new JRadioButtonMenuItem("自动换行(W)",false);
+     item3_1.addActionListener(new ActionListener(){
+      public void actionPerformed(ActionEvent e){
+       Object source = e.getSource();
+       
+       if(source == item3_1)
+        workArea.setLineWrap(true);   
+       else if(source != item3_1)
+        workArea.setLineWrap(false);
+      }
+     });
+     
+     JMenuItem item5_1 = new JMenuItem("状态栏(K)");
+  
+    
+
+     JMenuItem item4_1 = new JMenuItem("查看帮助(H)");
+     item4_1.addActionListener(new ActionListener(){
+      public void actionPerformed(ActionEvent event){
+       new LookHelp();
+      }
+     });
+     JMenuItem item4_2 = new JMenuItem("关于记事本(A)");
+     item4_2.addActionListener(new ActionListener(){
+      public void actionPerformed(ActionEvent event){
+       new AboutBook();
+      }
+     });
+     
+    
+     file.add(item1_1);file.add(item1_2);file.add(item1_3);file.add(item1_4);file.add(item1_5);
+     edit.add(item2_1);edit.add(item2_2);edit.add(item2_3);
+     form.add(item3_1);
+     help.add(item4_1);help.add(item4_2);
+     look.add(item5_1);
+     
+     
+ }
+ 
+ public static void main(String args[])
+ {
+  Test app = new Test();
+  
+  app.setSize(600, 400);
+  app.setLocation(200,200);
+  app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+  app.setVisible(true);
+ }
+
+	 
+}
+ 
\ No newline at end of file