diff --git a/src/java2020spring/About.java b/src/java2020spring/About.java
new file mode 100644
index 0000000000000000000000000000000000000000..f3100ec4b9256a730ff2fb611635ba96884d926f
--- /dev/null
+++ b/src/java2020spring/About.java
@@ -0,0 +1,21 @@
+package java2020spring;
+
+import javax.swing.*;
+
+public class About extends JFrame{
+	JPanel panel;
+	JLabel label;
+	public About() {
+		this.setTitle("关于记事本");
+		this.setSize(200, 100);
+		this.setLocation(200, 300);
+		this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
+		this.setVisible(true);
+		panel=new JPanel();
+		label=new JLabel("制作人：hyb");
+		panel.add(label);
+		add(label);
+		
+	}
+
+}
diff --git a/src/java2020spring/CheckHelp.java b/src/java2020spring/CheckHelp.java
new file mode 100644
index 0000000000000000000000000000000000000000..dc51a602741492013e12bd0c3884a119514a3d2f
--- /dev/null
+++ b/src/java2020spring/CheckHelp.java
@@ -0,0 +1,21 @@
+package java2020spring;
+import javax.swing.*;
+import java.awt.*;
+public class CheckHelp extends JFrame{
+	public CheckHelp() {
+		this.setTitle("查看帮助");
+		this.setSize(500, 300);
+		this.setLocation(200, 300);
+	    this.setResizable(false);
+	    this.setVisible(true);
+	    this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
+	    Container c=this.getContentPane();
+	    c.setLayout(new GridLayout(5,0));
+	    JLabel label1=new JLabel("菜单可选择功能");
+	    JLabel label2=new JLabel("可自动换行");
+	    JLabel label3=new JLabel("可右键唤出编辑菜单");
+		c.add(label1);
+		c.add(label2);
+		c.add(label3);	
+	}
+}
diff --git a/src/java2020spring/Right.java b/src/java2020spring/Right.java
new file mode 100644
index 0000000000000000000000000000000000000000..055a0075c904596fd9b3488a19a25100674f9069
--- /dev/null
+++ b/src/java2020spring/Right.java
@@ -0,0 +1,98 @@
+package java2020spring;
+import java.awt.*;
+import javax.swing.*;
+import java.awt.event.*;
+import javax.swing.undo.UndoManager;
+import java.awt.datatransfer.*;
+public class Right extends JTextArea implements MouseListener{
+	JPopupMenu pop=null;
+	JMenuItem revoke=null,copy=null,paste=null,delete=null,cut=null;
+	UndoManager undo=new UndoManager();
+	
+	public Right() {
+		super();
+		init();
+	}
+	
+	 void init() {
+		   this.addMouseListener(this);
+		   pop = new JPopupMenu();
+		   pop.add(copy = new JMenuItem("复制"));
+		   pop.add(paste = new JMenuItem("粘贴"));
+		   pop.add(cut = new JMenuItem("剪切"));
+		   copy.addActionListener(new ActionListener() {
+		    public void actionPerformed(ActionEvent e) {
+		     action(e);
+		    }
+		   });
+		   paste.addActionListener(new ActionListener() {
+		    public void actionPerformed(ActionEvent e) {
+		     action(e);
+		    }
+		   });
+		   cut.addActionListener(new ActionListener() {
+		    public void actionPerformed(ActionEvent e) {
+		     action(e);
+		    }
+		   });
+		   this.add(pop);
+		  }
+	
+	
+	public void action(ActionEvent e) {
+		String str=e.getActionCommand();
+		if(str.equals(copy.getText()))
+			this.copy();
+		else if(str.equals(paste.getText()))
+			this.paste();
+		else if(str.equals(paste.getText()))
+			this.cut();
+	}
+	
+	public JPopupMenu getPop() {
+		return pop;
+	}
+	public void setPop(JPopupMenu pop) {
+		this.pop=pop;
+	}
+	public boolean isClipboardString() {
+		boolean b=false;
+		Clipboard cilp=this.getToolkit().getSystemClipboard();
+		Transferable content=cilp.getContents(this);
+		try {
+			if(content.getTransferData(DataFlavor.stringFlavor)instanceof String) {
+				b=true;
+			}
+		}
+		catch(Exception e) {
+		}
+		return b;
+	}
+	
+	public boolean isCanCopy() {
+		boolean b=false;
+		int start=this.getSelectionStart();
+		int end=this.getSelectionEnd();
+		if(start!=end)
+			b=true;
+		return b;
+	}
+	
+	public void mouseClicked(MouseEvent e) {
+}
+	public void mouseEntered(MouseEvent e) {
+	}
+	public void mouseExited(MouseEvent e) {
+	}
+	public void mousePressed(MouseEvent e) {
+		if(e.getButton()==MouseEvent.BUTTON3) {
+			copy.setEnabled(isCanCopy());
+			paste.setEnabled(isClipboardString());
+			cut.setEnabled(isCanCopy());
+			pop.show(this, e.getX(), e.getY());
+		}
+	}
+	public void mouseReleased(MouseEvent e) {
+	}
+}
+	
diff --git a/src/java2020spring/TextEditor.java b/src/java2020spring/TextEditor.java
new file mode 100644
index 0000000000000000000000000000000000000000..37a44170ba3d36ed80e7ebd675d9ad041dd9dcd5
--- /dev/null
+++ b/src/java2020spring/TextEditor.java
@@ -0,0 +1,342 @@
+package java2020spring;
+import javax.swing.*;
+import javax.swing.event.CaretEvent;
+import javax.swing.event.CaretListener;
+import javax.swing.undo.UndoManager;
+
+import java.awt.*;
+import java.awt.event.*;
+import java.io.*;
+import java.awt.datatransfer.*;
+
+public class TextEditor extends JFrame implements ActionListener,MouseListener,CaretListener{
+	JMenuBar menuBar;
+	JMenu menuFile,menuEditor,menuFormat,menuCheck,menuHelp;
+	JMenuItem itemNew,itemOpen,itemSave,itemSaveTo,itemQuit;
+	JMenuItem itemRevoke,itemCut,itemCopy,itemPaste,itemDelete,item26;
+	JRadioButtonMenuItem itemWordWrap;
+	JCheckBoxMenuItem itemStatus;
+	JMenuItem itemCheckHelp,itemAbout;
+	JTextArea textShow;
+	JScrollPane scroll;
+	JFileChooser fileChooser;
+	UndoManager undoManager;
+	JPopupMenu jp=new JPopupMenu();//快捷菜单
+	JMenuItem revoke,copy,paste,delete,cut;
+	JLabel statusLabel;
+
+	public  TextEditor() {
+		editMenuBar();
+		textArea();
+		addActionListener();
+	    this.setJMenuBar(menuBar);
+	    this.setSize(800, 600);
+	    this.setLocation(0, 0);
+	    this.setVisible(true);
+		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		this.setTitle("文本编辑器");
+		 revoke=new JMenuItem("撤销");
+		 cut=new JMenuItem("剪切");
+		 copy=new JMenuItem("复制");
+		 paste=new JMenuItem("粘贴");
+		 delete=new JMenuItem("删除");  
+		 jp.add(revoke);
+		 jp.addSeparator();
+		 jp.add(cut);
+		 jp.add(copy);
+		 jp.add(paste);
+		 jp.add(delete);
+		 revoke.addActionListener(new ActionListener() {
+		  public void actionPerformed(ActionEvent e) {
+		   if(undoManager.canUndo()) {
+		    undoManager.undo();
+		   }
+		  }  
+		 });
+		 cut.addActionListener(new ActionListener() {
+		public void actionPerformed(ActionEvent e) {
+		textShow.cut();   
+		}});
+		 copy.addActionListener(new ActionListener() {
+		public void actionPerformed(ActionEvent e) {
+		textShow.copy();  
+		}    
+		 });
+		 paste.addActionListener(new ActionListener() {
+		public void actionPerformed(ActionEvent e) {
+		textShow.paste();  
+		}    
+		 });
+		 delete.addActionListener(new ActionListener(){
+		public void actionPerformed(ActionEvent e) {
+		textShow.replaceSelection("");
+		}
+		 });
+		 
+		 textShow.addMouseListener(new MouseAdapter() {
+		  public void mousePressed(MouseEvent me) {
+		   int mode=me.getModifiers();
+		   if(mode==InputEvent.BUTTON3_MASK) {
+		    jp.show(textShow,me.getX(),me.getY());
+		   }
+		  }
+		 });		 
+		 statusLabel=new JLabel("状态栏");  
+		   add(statusLabel,BorderLayout.SOUTH);
+		   textShow.addCaretListener(new CaretListener(){
+		    public void caretUpdate(CaretEvent e){
+		    JTextArea editArea = (JTextArea)e.getSource();
+		    int linenum =1;
+		    int columnnum = 1;
+		    try {
+		     int caretpos = editArea.getCaretPosition();
+		     linenum = editArea.getLineOfOffset(caretpos);
+		     columnnum = caretpos - editArea.getLineStartOffset(linenum);
+		     linenum += 1;
+		    }
+		    catch(Exception ex) { }
+		    updateStatus(linenum,columnnum);
+		    } });
+		   updateStatus(1,1);
+	}
+
+	private void updateStatus(int linenum, int columnnum) {
+		 statusLabel.setText("第"+linenum+"行，第"+columnnum+"列");
+		   statusLabel.setHorizontalAlignment(JTextField.RIGHT);  
+		
+	}
+
+	public void editMenuBar() {                      //设计菜单栏
+	menuBar=new JMenuBar();
+    menuFile=new JMenu("文件");
+    menuEditor=new JMenu("编辑");
+    menuFormat=new JMenu("格式");
+    menuCheck=new JMenu("查看");
+    menuHelp=new JMenu("帮助");
+    menuBar.add(menuFile);
+    menuBar.add(menuEditor);
+    menuBar.add(menuFormat);
+    menuBar.add(menuCheck);
+    menuBar.add(menuHelp); 
+    itemNew=new JMenuItem("新建");
+    itemOpen=new JMenuItem("打开");
+    itemSave=new JMenuItem("保存");
+    itemSaveTo=new JMenuItem("另存为");
+    itemQuit=new JMenuItem("退出");
+    menuFile.add(itemNew);
+    menuFile.add(itemOpen);
+    menuFile.add(itemSave);
+    menuFile.add(itemSaveTo);
+    menuFile.add(itemQuit);
+    itemRevoke=new JMenuItem("撤销");
+    undoManager=new UndoManager();
+    itemCut=new JMenuItem("剪切");
+    itemCopy=new JMenuItem("复制");
+    itemPaste=new JMenuItem("粘贴");
+    itemDelete=new JMenuItem("删除");
+    item26=new JMenuItem("右键");
+    menuEditor.add(itemRevoke);
+    menuEditor.add(itemCut);
+    menuEditor.add(itemCopy);
+    menuEditor.add(itemPaste);
+    menuEditor.add(itemDelete);
+    menuEditor.add(item26);
+    itemWordWrap=new JRadioButtonMenuItem("自动换行()",false);
+    menuFormat.add(itemWordWrap);
+    itemStatus=new JCheckBoxMenuItem("状态栏");
+    menuCheck.add(itemStatus);
+    itemCheckHelp=new JMenuItem("查看帮助");
+    itemAbout=new JMenuItem("关于记事本");
+    menuHelp.add(itemCheckHelp);
+    menuHelp.add(itemAbout);
+	}
+
+    public void textArea() {                  //设计文本框
+    	textShow=new JTextArea();
+    	scroll=new JScrollPane(textShow);
+    	add(scroll,BorderLayout.CENTER);
+    }
+    
+    public static void main(String args[]) {
+    	TextEditor text=new TextEditor();
+    }
+    
+    public void addActionListener() {                //添加监视器
+    	itemNew.addActionListener(this);
+    	itemOpen.addActionListener(this);
+    	itemSave.addActionListener(this);
+    	itemSaveTo.addActionListener(this);
+    	itemQuit.addActionListener(this);
+    	itemRevoke.addActionListener(this);
+    	itemCut.addActionListener(this);
+    	itemCopy.addActionListener(this);
+    	itemPaste.addActionListener(this);
+    	itemDelete.addActionListener(this);
+    	item26.addActionListener(this);
+    	itemWordWrap.addActionListener(this);
+    	itemCheckHelp.addActionListener(this);
+    	itemAbout.addActionListener(this); 
+    	textShow.getDocument().addUndoableEditListener(undoManager);
+    	itemStatus.addActionListener(this);
+    }
+
+
+@Override
+public void actionPerformed(ActionEvent e) {
+	if(e.getSource()==itemAbout)
+	new About();
+	else if(e.getSource()==itemNew)
+		textShow.setText(" ");
+	if(e.getSource()==itemOpen)
+		openFile();
+	else if(e.getSource()==itemSave)
+		saveFile();
+	else if(e.getSource()==itemSaveTo)
+		saveTo();
+	else if(e.getSource()==itemQuit)
+		System.exit(0);
+	else if(e.getSource()==itemRevoke) {
+		if(undoManager.canUndo())
+			 undoManager.undo();
+		 else
+			 JOptionPane.showMessageDialog(null,"无法撤销","警告",JOptionPane.WARNING_MESSAGE);
+	}
+		
+	else if(e.getSource()==itemCut)
+		textShow.cut();
+	else if(e.getSource()==itemCopy)
+		textShow.copy();
+	else if(e.getSource()==itemPaste)
+		textShow.paste();
+	else if(e.getSource()==itemDelete) {
+		if(undoManager.canUndo())
+			 undoManager.undo();
+		 else
+			 JOptionPane.showMessageDialog(null,"无法删除","警告",JOptionPane.WARNING_MESSAGE);
+	}
+	else if(e.getSource()==itemWordWrap) 
+		textShow.setLineWrap(true);
+	else if(e.getSource()==itemCheckHelp)
+		new CheckHelp();
+	else if(e.getSource()==itemStatus) {
+		   if((itemStatus).getState())
+			     itemStatus.setVisible(true);
+			   else  itemStatus.setVisible(false);
+			  }     
+	}
+		
+
+	
+
+ void openFile() {
+	File file=null;
+	int result;
+	fileChooser=new JFileChooser("C:\\");
+	fileChooser.setApproveButtonToolTipText("确定");
+	fileChooser.setDialogTitle("打开文件");
+	result=fileChooser.showOpenDialog(rootPane);
+	if(result==JFileChooser.APPROVE_OPTION)
+		file=fileChooser.getSelectedFile();
+	if(file.isFile()&&file.exists()) {
+		BufferedReader reader=null;
+	try {
+		InputStreamReader inputStreamReader=new InputStreamReader(new FileInputStream(file),"UTF-8");
+		reader=new BufferedReader(inputStreamReader);
+		String readline="";
+		while ((readline=reader.readLine())!=null)
+			textShow.append(readline+'\n');
+		reader.close();
+	}
+	catch(IOException e) {
+		e.printStackTrace();
+	}
+	}
+ }
+ 
+ void saveFile() {
+	 File file =null;
+	 int result;
+	 fileChooser=new JFileChooser("C:\\");
+	 fileChooser.setApproveButtonToolTipText("保存");
+	 fileChooser.setDialogTitle("保存文件");
+	 result=fileChooser.showOpenDialog(rootPane);
+	 if(result==JFileChooser.APPROVE_OPTION)
+		 file=fileChooser.getSelectedFile();
+		 try {
+			 OutputStreamWriter outputStreamWriter=new OutputStreamWriter(new FileOutputStream(file),"UTF-8"); 
+			 BufferedWriter bufferWriter=new BufferedWriter(outputStreamWriter);
+			 String content=textShow.getText();
+			 bufferWriter.write(content);
+			 bufferWriter.close();
+		 }
+		 catch(IOException e) {
+			 e.printStackTrace();
+	 }
+ }
+ 
+ void saveTo() {
+	 JFileChooser fileChooser=new JFileChooser();
+	 fileChooser.showOpenDialog(null);
+	 File file=fileChooser.getSelectedFile();
+	 byte[] result=new byte[(int)file.length()];
+	 try {
+		 FileInputStream inputStream=new FileInputStream(file);
+		 inputStream.read(result);
+		 String string=new String(result);
+		 System.out.println(file.getAbsolutePath());
+		 System.out.println(string);
+		 fileChooser.showSaveDialog(null);
+		 File file2=fileChooser.getSelectedFile();
+		 FileOutputStream outputStream=new FileOutputStream(file2);
+		 outputStream.write(result);
+		 outputStream.close();
+	 }
+	 catch(IOException e) {
+		 e.printStackTrace();
+	 }
+ }
+
+@Override
+public void mouseClicked(MouseEvent e) {
+	// TODO 自动生成的方法存根
+	
+}
+
+@Override
+public void mousePressed(MouseEvent e) {
+	// TODO 自动生成的方法存根
+	
+}
+
+@Override
+public void mouseReleased(MouseEvent e) {
+	// TODO 自动生成的方法存根
+	
+}
+
+@Override
+public void mouseEntered(MouseEvent e) {
+	// TODO 自动生成的方法存根
+	
+}
+
+@Override
+public void mouseExited(MouseEvent e) {
+	// TODO 自动生成的方法存根
+	
+}
+
+@Override
+public void caretUpdate(CaretEvent e) {
+	// TODO 自动生成的方法存根
+	
+}
+ 
+
+
+ 
+ 
+ 
+ 
+}
+ 
\ No newline at end of file