diff --git a/resources/images/notepad.png b/resources/images/notepad.png
new file mode 100644
index 0000000000000000000000000000000000000000..8b00276d75d3f48b03978c050f6f884fcb161a6a
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diff --git a/src/java2022spring/EditMenu.java b/src/java2022spring/EditMenu.java
new file mode 100644
index 0000000000000000000000000000000000000000..7e09bd9d09a62f58fb4c43daba02e8bade71a93b
--- /dev/null
+++ b/src/java2022spring/EditMenu.java
@@ -0,0 +1,467 @@
+package java2022spring;
+import javax.swing.BorderFactory;
+import javax.swing.ButtonGroup;
+import javax.swing.JButton;
+import javax.swing.JCheckBox;
+import javax.swing.JDialog;
+import javax.swing.JFrame;
+import javax.swing.JLabel;
+import javax.swing.JMenu;
+import javax.swing.JMenuItem;
+import javax.swing.JOptionPane;
+import javax.swing.JPanel;
+import javax.swing.JPopupMenu;
+import javax.swing.JRadioButton;
+import javax.swing.JTextArea;
+import javax.swing.JTextField;
+import javax.swing.KeyStroke;
+import javax.swing.undo.UndoManager;
+
+import java.awt.BorderLayout;
+import java.awt.Component;
+import java.awt.Container;
+import java.awt.Dimension;
+import java.awt.FlowLayout;
+import java.awt.GridLayout;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.FocusAdapter;
+import java.awt.event.FocusEvent;
+import java.awt.event.KeyAdapter;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+import java.util.Calendar;
+import java.util.GregorianCalendar;
+
+public class EditMenu extends JMenu{
+	JFrame frame;
+	JTextArea textArea;
+	UndoManager undoManager;
+	GregorianCalendar myCalendar;
+	EditMenu(JFrame frame, JTextArea textArea) {
+		super("编辑(E)");
+		this.frame = frame;
+		this.textArea = textArea;
+		undoManager = new UndoManager();
+		myCalendar = new GregorianCalendar();
+		initEditMenu();
+	}
+	public void initEditMenu() {
+		JMenuItem cancelBtn = new JMenuItem("撤销(U)");
+		cancelBtn.setMnemonic(java.awt.event.KeyEvent.VK_U);
+		cancelBtn.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_Z,
+                java.awt.event.KeyEvent.CTRL_MASK));
+		JMenuItem cutBtn = new JMenuItem("剪切(T)");
+		cutBtn.setMnemonic(java.awt.event.KeyEvent.VK_T);
+		cutBtn.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_X,
+                java.awt.event.KeyEvent.CTRL_MASK));
+		JMenuItem copyBtn = new JMenuItem("复制(C)");
+		copyBtn.setMnemonic(java.awt.event.KeyEvent.VK_C);
+		copyBtn.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_C,
+                java.awt.event.KeyEvent.CTRL_MASK));
+		JMenuItem pasteBtn = new JMenuItem("粘贴(P)");
+		pasteBtn.setMnemonic(java.awt.event.KeyEvent.VK_P);
+		pasteBtn.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_V,
+                java.awt.event.KeyEvent.CTRL_MASK));
+		JMenuItem delBtn = new JMenuItem("删除(L)");
+		delBtn.setMnemonic(java.awt.event.KeyEvent.VK_L);
+		JMenuItem findAlterBtn = new JMenuItem("查找/替换(F)");
+		findAlterBtn.setMnemonic(java.awt.event.KeyEvent.VK_F);
+		findAlterBtn.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_F,
+                java.awt.event.KeyEvent.CTRL_MASK));
+		JMenuItem turnBtn = new JMenuItem("转到(G)");
+		turnBtn.setMnemonic(java.awt.event.KeyEvent.VK_G);
+		turnBtn.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_G,
+                java.awt.event.KeyEvent.CTRL_MASK));
+		JMenuItem selectAllBtn = new JMenuItem("全选(A)");
+		selectAllBtn.setMnemonic(java.awt.event.KeyEvent.VK_A);
+		selectAllBtn.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_A,
+                java.awt.event.KeyEvent.CTRL_MASK));
+		JMenuItem datetimeBtn = new JMenuItem("时间/日期(D)");
+		delBtn.setMnemonic(java.awt.event.KeyEvent.VK_D);
+		datetimeBtn.setAccelerator(KeyStroke.getKeyStroke("F5"));
+		add(cancelBtn);
+		addSeparator();
+		add(cutBtn);
+		add(copyBtn);
+		add(pasteBtn);
+		add(delBtn);
+		addSeparator();
+		add(findAlterBtn);
+		add(turnBtn);
+		addSeparator();
+		add(selectAllBtn);
+		add(datetimeBtn);
+		
+		// 绑定UndoManager
+		textArea.getDocument().addUndoableEditListener(undoManager);
+		
+		// 实现右键弹出菜单
+		textArea.addMouseListener(new MouseAdapter() {
+			public void mouseReleased(MouseEvent e) {
+				if(e.getButton()==MouseEvent.BUTTON3) {
+					showPopupMenu(e.getX(), e.getY());
+				}
+			}
+		});
+		
+		// 撤销内容
+		cancelBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				if(undoManager.canUndo())
+					undoManager.undo();
+				else {
+					JOptionPane.showMessageDialog(frame, "无法进行撤销操作");
+				}
+			}
+		});
+		
+		// 剪切内容
+		cutBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				textArea.cut();
+			}
+		});
+
+		// 复制内容
+		copyBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				textArea.copy();
+			}
+		});
+		
+		// 粘贴内容
+		pasteBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				textArea.paste();
+			}
+		});
+		
+		// 删除内容
+		delBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				String text = textArea.getText().toString();
+				// 删除选中的部分
+				String beforeText = text.substring(0, textArea.getSelectionStart());
+				String afterText = text.substring(textArea.getSelectionEnd(), text.length());
+				textArea.setText(beforeText + afterText);
+			}
+		});
+		
+		// 查找内容
+		findAlterBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				new FindAlterDialog();
+			}
+		});
+		
+		// 转到内容
+		turnBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				JDialog turnDialog = new JDialog();
+				turnDialog.setTitle("转到");
+				turnDialog.setSize(400, 80);
+				turnDialog.setResizable(false);
+				turnDialog.setLocationRelativeTo(frame);
+				
+				JLabel textLbl = new JLabel("转到行数:");
+				JTextField textField = new JTextField(22);
+				JButton turnBtn = new JButton("转到");
+				turnBtn.setPreferredSize(new Dimension(80, 20));
+				
+				JPanel contentPane = new JPanel();
+				turnDialog.setContentPane(contentPane);
+				
+				contentPane.add(textLbl);
+				contentPane.add(textField);
+				contentPane.add(turnBtn);
+				
+				turnDialog.setVisible(true);
+				
+				turnBtn.addActionListener(new ActionListener() {
+					public void actionPerformed(ActionEvent e) {
+						int totalLines = textArea.getLineCount();
+						int pos = 0;
+						int[] linePos = new int[totalLines + 1];
+						System.out.println(totalLines);
+						int num = 1;
+						
+						while(true) {
+							pos = textArea.getText().indexOf('\12', pos);
+							if(pos == -1) break;
+							linePos[num++] = pos;
+							pos += 1;
+						}
+						
+						int getLine = Integer.parseInt(textField.getText());
+						if(getLine > totalLines) textArea.setCaretPosition(0);
+						else {	
+							int newPos = linePos[getLine - 1];
+							textArea.setCaretPosition(newPos + 1);
+						}
+					}
+				});
+			}
+		});
+		
+		// 全选内容
+		selectAllBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				textArea.selectAll();
+			}
+		});
+		
+		// 时间/日期显示
+		datetimeBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				String datetime = myCalendar.get(Calendar.HOUR_OF_DAY)+":"+ myCalendar.get(Calendar.MINUTE)
+								+ " " + myCalendar.get(Calendar.YEAR)+"/"+(myCalendar.get(Calendar.MONTH)+1)
+								+ "/" + myCalendar.get(Calendar.DAY_OF_MONTH);
+				String text = textArea.getText();
+				int caretPos = textArea.getCaretPosition();
+				textArea.setText(text.substring(0, caretPos) + datetime + text.substring(caretPos));
+			}
+		});
+	}
+	public void showPopupMenu(int x, int y) {
+        JPopupMenu popupMenu = new JPopupMenu();
+
+        // 菜单项
+        JMenuItem undoMenuItem = new JMenuItem("撤销");
+        JMenuItem cutMenuItem = new JMenuItem("剪切");
+        JMenuItem copyMenuItem = new JMenuItem("复制");
+        JMenuItem pasteMenuItem = new JMenuItem("粘贴");
+        JMenuItem delMenuItem = new JMenuItem("删除");
+        JMenuItem selectAllMenuItem = new JMenuItem("全选");
+
+
+        // 添加 一级菜单 到 弹出菜单
+        popupMenu.add(undoMenuItem);
+        popupMenu.addSeparator();
+        popupMenu.add(cutMenuItem);
+        popupMenu.add(copyMenuItem);
+        popupMenu.add(pasteMenuItem);
+        popupMenu.add(delMenuItem);
+        popupMenu.addSeparator();       // 添加一条分隔符
+        popupMenu.add(selectAllMenuItem);
+
+        // 添加菜单项的点击监听器
+        undoMenuItem.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+            	if(undoManager.canUndo())
+					undoManager.undo();
+				else {
+					JOptionPane.showMessageDialog(frame, "无法进行撤销操作");
+				}
+            }
+        });
+        cutMenuItem.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                textArea.cut();
+            }
+        });
+        copyMenuItem.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                textArea.copy();
+               
+            }
+        });
+        pasteMenuItem.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+            	textArea.paste();
+            }
+        });
+        delMenuItem.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+            	String text = textArea.getText().toString();
+				// 删除选中的部分
+				String beforeText = text.substring(0, textArea.getSelectionStart());
+				String afterText = text.substring(textArea.getSelectionEnd(), text.length());
+				textArea.setText(beforeText + afterText);
+            }
+        });
+        selectAllMenuItem.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                textArea.selectAll();
+               
+            }
+        });
+        popupMenu.show(textArea, x, y);
+    }
+	
+	// 查找, 替换文字对话框
+	class FindAlterDialog extends JDialog {
+		private JLabel inputLbl;
+		private JTextField inputField;
+		private JButton findBtn;
+		private JButton cancelBtn;
+		private JCheckBox judgeCaseBtn;
+		private ButtonGroup btnGroup;
+		private JRadioButton upBtn;
+		private JRadioButton downBtn;
+		private JPanel findPanel;
+		private JLabel alterLabel;
+		private JTextField alterField;
+		private JButton alterBtn;
+		private JButton alterAllBtn;
+		private JPanel alterPanel;
+		private JPanel alterBtnPanel;
+		private JPanel directionPanel;
+		private JPanel bottomPanel;
+
+		FindAlterDialog() {
+			super(frame, "查找与替换", false);
+			setSize(480, 220);
+			setResizable(false);
+			setLocationRelativeTo(frame);
+	        Container container = getContentPane();
+	        container.setLayout(new FlowLayout(FlowLayout.LEFT));
+	        
+	        inputLbl = new JLabel("查找内容(N): ");
+	        alterLabel = new JLabel("替换其为(P): ");
+	        inputField = new JTextField(22);
+	        alterField = new JTextField(22);
+	        findBtn = new JButton("查找下一个(F)");
+	        alterBtn = new JButton("替换(R)");
+	        alterAllBtn = new JButton("全部替换(A)");
+	        findBtn.setPreferredSize(new Dimension(120, 22));
+	        alterBtn.setPreferredSize(new Dimension(120, 22));
+	        alterAllBtn.setPreferredSize(new Dimension(120, 22));
+	        
+	        btnGroup = new ButtonGroup();
+	        upBtn = new JRadioButton("向上(U)");
+	        downBtn = new JRadioButton("向下(D)");
+	        downBtn.setSelected(true);
+	        btnGroup.add(upBtn);
+	        btnGroup.add(downBtn);
+	        
+	        cancelBtn = new JButton("取消");
+	        cancelBtn.setPreferredSize(new Dimension(120, 22));
+	        judgeCaseBtn = new JCheckBox("区分大小写");
+	        
+	 
+	        findPanel = new JPanel();
+	        alterPanel = new JPanel();
+	        bottomPanel = new JPanel();
+	 
+	        findPanel.add(inputLbl);
+	        findPanel.add(inputField);
+	        findPanel.add(findBtn);
+	        
+	        alterBtnPanel = new JPanel();
+	        alterBtnPanel.setLayout(new GridLayout(2, 1, 0, 5));
+	        alterBtnPanel.add(alterBtn);
+	        alterBtnPanel.add(alterAllBtn);
+	        alterBtnPanel.add(cancelBtn);
+	        
+	        alterPanel.add(alterLabel);
+	        alterPanel.add(alterField);
+	        alterPanel.add(alterBtnPanel);
+	        
+	        directionPanel = new JPanel();
+	        directionPanel.setPreferredSize(new Dimension(170, 60));
+	        directionPanel.setBorder(BorderFactory.createTitledBorder("方向 "));
+	        directionPanel.add(upBtn);
+	        directionPanel.add(downBtn);
+	 
+	        bottomPanel.add(judgeCaseBtn);
+	        bottomPanel.add(directionPanel);
+	        bottomPanel.add(cancelBtn);
+	 
+	        container.add(findPanel);
+	        container.add(alterPanel);
+	        container.add(bottomPanel);
+			
+			
+	        // 添加事件
+	        findBtn.addActionListener(new ActionListener() {
+	        	public void actionPerformed(ActionEvent e) {
+	        		String textCont = textArea.getText();
+	        		String findText = inputField.getText();
+	        		if(!judgeCaseBtn.isSelected()) {
+	        			textCont = textCont.toLowerCase();
+	        			findText = findText.toLowerCase();
+	        		}
+	        		int objPos;
+	        		int caretPos = textArea.getCaretPosition();
+	        		if(upBtn.isSelected()) {
+	        			objPos = textCont.lastIndexOf(findText, caretPos - findText.length() - 1);
+	        		}
+	        		else {
+	        			objPos = textCont.indexOf(findText, caretPos);
+	        		}
+	        		
+	        		if(objPos != -1) {
+	        			textArea.setCaretPosition(objPos);
+	        			textArea.select(objPos, objPos + findText.length());
+	        		}
+	        		else {
+	        			JOptionPane.showMessageDialog(null, "抱歉, 未查询到该内容", "确认", JOptionPane.INFORMATION_MESSAGE);
+	        		}
+	        	}
+	        });
+	        
+	        alterBtn.addActionListener(new ActionListener() {
+	        	public void actionPerformed(ActionEvent e) {
+	        		String alterText = alterField.getText();
+	        		if(textArea.getSelectedText() != null) {
+	        			textArea.replaceSelection(alterText);
+	        		}
+	        		else {
+	        			JOptionPane.showMessageDialog(null, "您没有选中任何内容", "确认", JOptionPane.INFORMATION_MESSAGE);
+	        		}
+	        	}
+	        });
+	        
+	        alterAllBtn.addActionListener(new ActionListener() {
+	        	public void actionPerformed(ActionEvent e) {
+	        		String textCont = textArea.getText();
+	        		String findText = inputField.getText();
+	        		String alterText = alterField.getText();
+	        		
+	        		if(judgeCaseBtn.isSelected()) {
+	        			textCont = textCont.toLowerCase();
+	        			findText = findText.toLowerCase();
+	        		}
+	        		
+	        		int objPos = -1;
+	        		int count = 0;
+	        		
+	        		do {
+	        			// 更新每一次修改后的文本
+	        			textCont = textArea.getText();
+	        			objPos = textCont.indexOf(findText, objPos + 1);
+	                    if (objPos != -1) {
+	                    	textArea.select(objPos, objPos + findText.length());
+	                    	try {
+								Thread.sleep(1000);
+							} catch (InterruptedException e1) {
+								// TODO 自动生成的 catch 块
+								e1.printStackTrace();
+							}
+	                    	textArea.replaceSelection(alterText.length() == 0 ? "" : alterText);
+	                    	count++;
+	                    } 
+	                }while (objPos != -1);
+	        		JOptionPane.showMessageDialog(null, "成功替换" + count + "个匹配内容!", "替换成功", JOptionPane.INFORMATION_MESSAGE);
+	        	}
+	        });
+	        
+	        cancelBtn.addActionListener(new ActionListener() {
+	        	public void actionPerformed(ActionEvent e) {
+	        		dispose();
+	        	}
+	        });
+	        
+	        
+			setVisible(true);
+			
+		}
+	}
+}
diff --git a/src/java2022spring/FileMenu.java b/src/java2022spring/FileMenu.java
new file mode 100644
index 0000000000000000000000000000000000000000..3f9c80b8fb3918cd8bbbdd93b11ddd9a625d02d4
--- /dev/null
+++ b/src/java2022spring/FileMenu.java
@@ -0,0 +1,293 @@
+package java2022spring;
+import javax.swing.JFileChooser;
+import javax.swing.JFrame;
+import javax.swing.JMenu;
+import javax.swing.JMenuItem;
+import javax.swing.JOptionPane;
+import javax.swing.JTextArea;
+import javax.swing.KeyStroke;
+
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.KeyAdapter;
+import java.awt.event.KeyEvent;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+
+public class FileMenu extends JMenu{
+	File file = null;
+	MainFrame frame;
+	JTextArea textArea;
+	JFileChooser fileChooser;
+	private boolean haveSelectedFile = false;
+	private boolean isSaved = true;
+	FileMenu(MainFrame frame, JTextArea textArea) {
+		super("文本(F)");
+		this.frame = frame;
+		this.textArea = textArea;
+		fileChooser = new JFileChooser();
+		initFileMenu();
+	}
+	
+	
+	
+	// 读取文件
+	public String readFile() {
+		BufferedReader reader = null;
+		StringBuilder fileString = null;
+		try {
+			fileString = new StringBuilder();
+			reader = new BufferedReader(new FileReader(file));
+			String str;
+			// 将文件中的文本读取到str中
+			while((str = reader.readLine()) != null) {
+				fileString.append(str);
+				fileString.append('\n');	// 添加换行符, 保留文件原本格式
+			}
+		} catch (FileNotFoundException e1) {
+			JOptionPane.showMessageDialog(null, "未找到该文件！");
+			return null;
+		} catch (IOException e1) {
+			JOptionPane.showMessageDialog(null, "文件读取异常");
+			return null;
+		} finally {
+			// 关闭字符流
+			try {
+				if (reader != null)
+					reader.close();
+			} catch (IOException e1) {}
+		}
+		return fileString.toString();
+	}
+	
+	// 弹出是否需要保存消息框
+	public boolean needSave() {
+		int select = JOptionPane.showConfirmDialog(null, "是否保存修改?");
+		if (select == JOptionPane.YES_OPTION) {
+			return true;
+		}
+		return false;
+	}
+	
+	// 判断文件是否被保存
+	public boolean checkIfSaved() {
+		// 选中并更改了文件
+		if(haveSelectedFile)
+				return textArea.getText().equals(readFile());
+		// 新文件在保存文件后也会获得文件句柄, 如果没有句柄说明没有保存
+		else
+			// 未选中文件则判断文本区域是否为空
+			return textArea.getText().equals("");
+	}
+	
+	// 保存文件
+	public boolean saveFile() {
+		if(haveSelectedFile) {
+			BufferedWriter writer = null;
+			try {
+				// 如果不存在会直接创建文件
+				writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file)));
+				writer.write(textArea.getText());
+				writer.flush();
+				isSaved = true;
+			} catch (FileNotFoundException e) {
+				JOptionPane.showMessageDialog(frame, "文件保存出错" + e.getMessage());
+			} catch (IOException e) {
+				JOptionPane.showMessageDialog(frame, "文件写入异常" + e.getMessage());
+			} finally {
+				try {
+					if (writer != null)
+						writer.close();
+				} catch (IOException e1) {}
+			}
+		}
+		else {
+			// 选择是否保存为新文件, 或者覆盖其他文件
+			while(true) {
+				if(fileChooser.showSaveDialog(frame) != JFileChooser.APPROVE_OPTION)
+					return false;	// 如果取消保存则什么也不做
+				file = fileChooser.getSelectedFile();// 获取选中的文件
+				if(file.exists()) {
+					// 询问是否覆盖
+					int option = JOptionPane.showConfirmDialog(
+							frame,
+							"该文件已存在,是否覆盖原文件",
+							"确认", JOptionPane.YES_NO_OPTION);
+					if(option == JOptionPane.NO_OPTION) {
+						// 如果不想覆盖就再做选择
+						file = null;
+					}
+					else break;
+				}
+				else break;
+			}
+			// 确认覆盖后获取到当前选择文件句柄, 保存进去
+			haveSelectedFile = true;
+			saveFile();
+		}
+		return true;
+	}
+	
+	public void initFileMenu() {
+		JMenuItem newFileBtn = new JMenuItem("新建(N)", 'N');
+		newFileBtn.setMnemonic(java.awt.event.KeyEvent.VK_N);
+		newFileBtn.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_N,
+                java.awt.event.KeyEvent.CTRL_MASK));
+		JMenuItem newFrameBtn = new JMenuItem("新窗口(W)");
+		newFrameBtn.setMnemonic(java.awt.event.KeyEvent.VK_W);
+		newFrameBtn.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_N,
+				java.awt.event.KeyEvent.VK_CONTROL));
+		JMenuItem openFileBtn = new JMenuItem("打开(O)");
+		openFileBtn.setMnemonic(java.awt.event.KeyEvent.VK_O);
+		openFileBtn.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_O,
+                java.awt.event.KeyEvent.CTRL_MASK));
+		JMenuItem saveFileBtn = new JMenuItem("保存(S)");
+		saveFileBtn.setMnemonic(java.awt.event.KeyEvent.VK_S);
+		saveFileBtn.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_S,
+                java.awt.event.KeyEvent.CTRL_MASK));
+		JMenuItem saveAsFileBtn = new JMenuItem("另存为(A)");
+		saveAsFileBtn.setMnemonic(java.awt.event.KeyEvent.VK_A);
+		JMenuItem exitBtn = new JMenuItem("退出(X)");
+		exitBtn.setMnemonic(java.awt.event.KeyEvent.VK_X);
+		add(newFileBtn);
+		add(newFrameBtn);
+		add(openFileBtn);
+		add(saveFileBtn);
+		add(saveAsFileBtn);
+		addSeparator();
+		add(exitBtn);
+		
+		// 添加关闭窗口时的监听器
+		frame.addWindowListener(new WindowAdapter() {
+			@Override
+			public void windowClosing(WindowEvent e) {
+				// 先用直接关闭替代
+				isSaved = checkIfSaved();
+				// 询问是否需要保存文件
+				if(!isSaved) {
+					if(needSave())
+						saveFile();
+				}
+				
+				System.exit(0);
+			}
+		});
+		
+		textArea.addKeyListener(new KeyAdapter() {
+			@Override
+			public void keyTyped(KeyEvent e) {
+				if(file != null)
+					frame.setTitle('*' + file.getName() + " - 记事本");
+			}});
+		
+		// 新建文件
+		newFileBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				isSaved = checkIfSaved();
+				// 询问是否需要保存文件
+				if(!isSaved) {
+					if(needSave())
+						saveFile();
+				}
+				// 清空原本文本信息
+				file = null;
+				textArea.setText("");
+				frame.setTitle("无标题 - 记事本");
+				haveSelectedFile = false;
+				// System.out.println("被按了!");
+			}
+		});
+		// 打开新窗口
+		newFrameBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				new MainFrame(false, frame.offset);
+			}
+		});
+		// 打开文件
+		openFileBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				boolean flag = false;
+				isSaved = checkIfSaved();
+				// 询问是否需要保存文件
+				if(!isSaved) {
+					if(needSave())
+						saveFile();
+					else flag = true;
+				}
+				
+				if(flag || isSaved) {
+					int select = fileChooser.showOpenDialog(frame);
+					if(select == JFileChooser.APPROVE_OPTION) {
+						haveSelectedFile = true;
+						file = fileChooser.getSelectedFile();
+						frame.setTitle(file.getName() + " - 记事本");
+						textArea.setText(readFile());
+						textArea.setCaretPosition(0);
+						System.out.println(textArea.getText());
+					}
+				}
+			}
+		});
+		// 保存文件
+		saveFileBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				// 保存文件后去除*号
+				if(saveFile() && haveSelectedFile) {
+					frame.setTitle(file.getName() + " - 记事本");
+				}
+				frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);					
+			}
+		});
+		
+		// 文件另存为
+		saveAsFileBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				while(true) {
+					if(fileChooser.showSaveDialog(frame) != JFileChooser.APPROVE_OPTION)
+						return;	// 如果取消保存则什么也不做
+					file = fileChooser.getSelectedFile();// 获取选中的文件
+					if(file.exists()) {
+						// 询问是否覆盖
+						int option = JOptionPane.showConfirmDialog(
+								frame,
+								"该文件已存在,是否覆盖原文件",
+								"确认", JOptionPane.YES_NO_OPTION);
+						if(option == JOptionPane.NO_OPTION) {
+							// 如果不想覆盖就再做选择
+							file = null;
+						}
+						else break;
+					}
+					else break;
+				}
+				haveSelectedFile = true;
+				saveFile();
+				frame.setTitle(file.getName() + " - 记事本");
+				frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);
+			}
+		});
+		
+		// 退出窗口
+		exitBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				isSaved = checkIfSaved();
+				// 询问是否需要保存文件
+				if(!isSaved) {
+					if(needSave())
+						saveFile();
+				}
+
+				System.exit(0);
+			}
+		});
+	}
+	
+}
diff --git a/src/java2022spring/MainFrame.java b/src/java2022spring/MainFrame.java
new file mode 100644
index 0000000000000000000000000000000000000000..7510aeb6c72b4ac6ca2332eb0969b2f9bca71483
--- /dev/null
+++ b/src/java2022spring/MainFrame.java
@@ -0,0 +1,157 @@
+package java2022spring;
+import java.awt.BorderLayout;
+import java.awt.Dimension;
+import java.awt.Font;
+import java.awt.Image;
+import java.awt.Toolkit;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+import java.io.*;
+import javax.swing.*;
+import javax.swing.event.CaretEvent;
+import javax.swing.event.CaretListener;
+
+
+public class MainFrame extends JFrame{
+	protected int offset = 0;		// 新建窗口偏移位置
+	protected JLabel posLabel;
+	protected String posText;
+	int fontSize = 16;
+	private JPanel posPane;
+	private JPanel contentPane;
+	private JMenuBar menuBar;
+	private JTextArea textArea;
+	private JScrollPane scrollPane;
+	private JFileChooser fileChooser = new JFileChooser();
+	private String fileName = "无标题";
+	
+	MainFrame(boolean isFirst, int offset) {
+		// 创建的新窗口偏移部分位置
+		if(!isFirst) this.offset = offset + 25;
+		setBounds(300 + this.offset, 100, 800, 600);
+		setTitle(fileName + " - 记事本");
+		//设置图标
+		Image myImage = Toolkit.getDefaultToolkit().getImage("resources/images/notepad.png");
+        this.setIconImage(myImage);
+		setLayout(new BorderLayout());
+		// 取消默认关闭操作, 在关闭前先判断文件是否需要保存
+		setDefaultCloseOperation(0);
+		
+		contentPane = new JPanel();
+		contentPane.setLayout(new BorderLayout());
+		setContentPane(contentPane);
+		// 文本框面板
+		textArea = new JTextArea();
+		textArea.setFont(new Font("华文中宋", Font.PLAIN, 16));
+		scrollPane = new JScrollPane(
+				textArea
+				,ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS
+				,ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS
+				);
+		contentPane.add(scrollPane, BorderLayout.CENTER);
+		
+		// 添加菜单
+		menuBar = new JMenuBar();
+		setJMenuBar(menuBar);
+		
+		/* 一级菜单区域 */
+		JMenu fileMenu = new FileMenu(this, textArea);
+		JMenu editMenu = new EditMenu(this, textArea);
+		JMenu formMenu = new formatMenu(this, textArea, scrollPane);
+		JMenu lookMenu = new JMenu("查看(V)");
+		JMenu helpMenu = new JMenu("帮助(H)");
+		menuBar.add(fileMenu);
+		menuBar.add(editMenu);
+		menuBar.add(formMenu);
+		menuBar.add(lookMenu);
+		menuBar.add(helpMenu);
+		
+		// "查看"菜单内容
+		JMenu changeSizeBtn = new JMenu("缩放(Z)");
+		changeSizeBtn.setMnemonic(java.awt.event.KeyEvent.VK_Z);
+		JCheckBox statusBarBtn = new JCheckBox("状态栏");
+		statusBarBtn.setSelected(true);
+		lookMenu.add(changeSizeBtn);
+		lookMenu.add(statusBarBtn);
+		
+		statusBarBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				if(statusBarBtn.isSelected())
+					posPane.setVisible(true);
+				else posPane.setVisible(false);
+			}
+		});
+		
+		JMenuItem largeBtn = new JMenuItem("放大(I)");
+		largeBtn.setMnemonic(java.awt.event.KeyEvent.VK_I);
+		largeBtn.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_PLUS,
+                java.awt.event.KeyEvent.CTRL_MASK));
+		JMenuItem smallBtn = new JMenuItem("缩小(O)");
+		smallBtn.setMnemonic(java.awt.event.KeyEvent.VK_O);
+		smallBtn.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_MINUS,
+                java.awt.event.KeyEvent.CTRL_MASK));
+		JMenuItem defaultBtn = new JMenuItem("恢复默认缩放");
+		defaultBtn.setAccelerator(KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_0,
+                java.awt.event.KeyEvent.CTRL_MASK));
+		changeSizeBtn.add(largeBtn);
+		changeSizeBtn.add(smallBtn);
+		changeSizeBtn.add(defaultBtn);
+		
+		largeBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				textArea.setFont(new Font("华文中宋", Font.PLAIN, fontSize += 2));
+			}
+		});
+		
+		smallBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				textArea.setFont(new Font("华文中宋", Font.PLAIN, fontSize -= 2));
+			}
+		});
+		
+		defaultBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				textArea.setFont(new Font("华文中宋", Font.PLAIN, fontSize = 16));
+			}
+		});
+		
+		// 帮助菜单内容
+		JMenuItem helpInfo = new JMenuItem("关于帮助(H)");
+		JMenuItem sendBack = new JMenuItem("发送反馈(F)");
+		JMenuItem notepadInfo = new JMenuItem("关于记事本(A)");
+		helpMenu.add(helpInfo);
+		helpMenu.add(sendBack);
+		helpMenu.addSeparator();
+		helpMenu.add(notepadInfo);
+		
+		// 窗口底部面板
+		posPane = new JPanel();
+		posPane.setLayout(new BorderLayout());
+		contentPane.add(posPane, BorderLayout.SOUTH);
+		posText = "第 1 行, 第 1 列  ";
+		posLabel = new JLabel(posText);
+		posPane.add(posLabel, BorderLayout.EAST);
+		
+		textArea.addCaretListener(new CaretListener() {        //记录行数和列数
+            public void caretUpdate(CaretEvent e) {
+                try {
+                    int caretPos = textArea.getCaretPosition();
+                    int row = textArea.getLineOfOffset(caretPos);
+                    int col = caretPos - textArea.getLineStartOffset(row);
+                    row += 1;
+                    col += 1;
+                    posLabel.setText("第 " + row + " 行, " + "第 " + col + " 列  ");
+                }
+                catch(Exception ex) { }
+            }});
+		
+		setVisible(true);
+		validate();
+	}
+	
+	public static void main(String[] args) {
+		new MainFrame(true, 0);
+	}
+}
diff --git a/src/java2022spring/Test.java b/src/java2022spring/Test.java
deleted file mode 100644
index 24deb29bfc0e5f50fdedcd21b504e77b529d48b6..0000000000000000000000000000000000000000
--- a/src/java2022spring/Test.java
+++ /dev/null
@@ -1,7 +0,0 @@
-package java2022spring;
-
-public class Test {
-	public static void main(String[] args) {
-		System.out.println("Hello world!");
-	}
-}
diff --git a/src/java2022spring/formatMenu.java b/src/java2022spring/formatMenu.java
new file mode 100644
index 0000000000000000000000000000000000000000..d9c483e518f953b67e6d6c41027a119a3b1259ec
--- /dev/null
+++ b/src/java2022spring/formatMenu.java
@@ -0,0 +1,202 @@
+package java2022spring;
+
+import java.awt.BorderLayout;
+import java.awt.Color;
+import java.awt.Dimension;
+import java.awt.Font;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+import javax.swing.BorderFactory;
+import javax.swing.JButton;
+import javax.swing.JCheckBox;
+import javax.swing.JDialog;
+import javax.swing.JFrame;
+import javax.swing.JInternalFrame;
+import javax.swing.JLabel;
+import javax.swing.JList;
+import javax.swing.JMenu;
+import javax.swing.JMenuItem;
+import javax.swing.JPanel;
+import javax.swing.JScrollPane;
+import javax.swing.JTextArea;
+import javax.swing.ListModel;
+import javax.swing.ScrollPaneConstants;
+import javax.swing.border.Border;
+import javax.swing.event.ListSelectionEvent;
+import javax.swing.event.ListSelectionListener;
+
+public class formatMenu extends JMenu{
+	JTextArea textArea;
+	JFrame frame;
+	JScrollPane scrollPane;
+	
+	formatMenu(JFrame frame, JTextArea textArea, JScrollPane scrollPane) {
+		super("格式(O)");
+		this.textArea = textArea;
+		this.frame = frame;
+		this.scrollPane = scrollPane;
+		initFormatMenu();
+	}
+	
+	public void initFormatMenu() {
+		JCheckBox autoNextBtn = new JCheckBox("自动换行(W)");
+		JMenuItem fontBtn = new JMenuItem("字体(F)");
+		fontBtn.setMnemonic(java.awt.event.KeyEvent.VK_F);
+		
+		add(autoNextBtn);
+		add(fontBtn);
+		
+		// 自动换行事件
+		autoNextBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				if(autoNextBtn.isSelected()) {
+					textArea.setLineWrap(true);
+					scrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
+				}
+				else {
+					textArea.setLineWrap(false);
+					scrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);
+				}
+			}
+		});
+		
+		// 字体窗口事件
+		fontBtn.addActionListener(new ActionListener() {
+			public void actionPerformed(ActionEvent e) {
+				new FontFrame();
+			}
+		});
+	}
+	
+	
+	class FontFrame extends JDialog {
+		String family = "华文中宋";
+		int size = 16;
+		String[] familyKinds = {"Times New Roman", "Consolas", "等线", "黑体", "华文中宋", "楷体", "隶书", "宋体", "微软雅黑"};
+		Integer[] sizeKinds = {8, 9, 10, 11, 12, 14, 16, 18, 20, 22, 24, 36};
+		JLabel instance;
+		
+		FontFrame() {
+			super(frame, "字体", true);
+			setSize(280, 340);
+			setLayout(null);	// 设置为绝对布局
+			setResizable(false);
+			setLocationRelativeTo(frame);
+			
+			final JList<String> familyList = new JList<String>();
+			final JList<Integer> sizeList = new JList<Integer>();
+			familyList.setListData(familyKinds);
+			sizeList.setListData(sizeKinds);
+			// 设置默认选项
+			familyList.setSelectedIndex(4);
+			sizeList.setSelectedIndex(6);
+			
+			// 菜单标签
+			JPanel headText1 = new JPanel();
+			JPanel headText2 = new JPanel();
+			JLabel familyLbl = new JLabel("字体(F):");
+			JLabel sizeLbl = new JLabel("大小(S):");
+			headText1.add(familyLbl);
+			headText2.add(sizeLbl);
+			headText1.setBounds(0, 5, 64, 24);
+			headText2.setBounds(190, 5, 64, 24);
+			add(headText1);
+			add(headText2);
+			
+			// 滚动菜单
+			JScrollPane familyPane = new JScrollPane(
+					familyList,
+					ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS,
+					ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
+			JScrollPane sizePane = new JScrollPane(
+					sizeList,
+					ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS,
+					ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER
+					);
+			familyPane.setBounds(10, 30, 180, 120);
+			sizePane.setBounds(200, 30, 65, 120);
+			add(familyPane);
+			add(sizePane);
+			
+			// 选中事件
+			familyList.addListSelectionListener(new ListSelectionListener() {
+	            @Override
+	            public void valueChanged(ListSelectionEvent e) {
+	            	// 获取目标索引
+	                int index = familyList.getSelectedIndex();
+	                // 获取数据的
+	                ListModel<String> listModel = familyList.getModel();
+	                
+	                family = listModel.getElementAt(index);
+	                instance.setFont(new Font(family, Font.PLAIN, size));
+	                
+	                System.out.println(family);
+	            }
+	        });
+			
+			sizeList.addListSelectionListener(new ListSelectionListener() {
+	            @Override
+	            public void valueChanged(ListSelectionEvent e) {
+	            	// 获取目标索引
+	                int index = sizeList.getSelectedIndex();
+	                // 获取数据的
+	                ListModel<Integer> listModel = sizeList.getModel();
+	                
+	                size = listModel.getElementAt(index);
+	                instance.setFont(new Font(family, Font.PLAIN, size));
+	                System.out.println(size);
+	            }
+	        });
+			
+			// 示例
+			JPanel instancePane = new JPanel();
+			JLabel textLbl = new JLabel("示例:");
+			JPanel instanceBox = new JPanel();
+			instance = new JLabel("AaBbCcDd");
+			instance.setFont(new Font("华文中宋", Font.PLAIN, 16));
+			
+			instancePane.setBounds(10, 160, 200, 75);
+			add(instancePane);
+			instancePane.setLayout(null);
+			textLbl.setBounds(0, 0, 200, 24);
+			instanceBox.setBounds(0, 30, 200, 75-24);
+			instancePane.add(textLbl);
+			instancePane.add(instanceBox);
+			instanceBox.setLayout(new BorderLayout());
+			instanceBox.add(instance, BorderLayout.CENTER);
+			
+			// 按钮
+			JPanel btnPane = new JPanel();
+			JButton confirmBtn = new JButton("确定");
+			JButton cancelBtn = new JButton("取消");
+			confirmBtn.setFont(new Font("华文中宋", Font.PLAIN, 16));
+			cancelBtn.setFont(new Font("华文中宋", Font.PLAIN, 16));
+			confirmBtn.setPreferredSize(new Dimension(70,20));
+			cancelBtn.setPreferredSize(new Dimension(70,20));
+			
+			btnPane.setLayout(new BorderLayout());
+			btnPane.add(confirmBtn, BorderLayout.WEST);
+			btnPane.add(cancelBtn, BorderLayout.EAST);
+			btnPane.setBounds(40, 260, 180, 30);
+			add(btnPane);
+			
+			// 按钮事件
+			confirmBtn.addActionListener(new ActionListener() {
+				public void actionPerformed(ActionEvent e) {
+					textArea.setFont(new Font(family, Font.PLAIN, size));
+					dispose();
+				}
+			});
+			
+			cancelBtn.addActionListener(new ActionListener() {
+				public void actionPerformed(ActionEvent e) {
+					dispose();
+				}
+			});
+			
+			setVisible(true);
+			validate();
+		}
+	}
+}