diff --git a/src/main/java/org/jcnc/jnotepad/controller/event/handler/menubar/OpenDirectory.java b/src/main/java/org/jcnc/jnotepad/controller/event/handler/menubar/OpenDirectory.java
index fb8c1f1820d4b167fac11af7a63e43865e4be2a0..6b4eb98351ded4a249a05d6810aa71c7f582ff05 100644
--- a/src/main/java/org/jcnc/jnotepad/controller/event/handler/menubar/OpenDirectory.java
+++ b/src/main/java/org/jcnc/jnotepad/controller/event/handler/menubar/OpenDirectory.java
@@ -17,9 +17,11 @@ import org.jcnc.jnotepad.views.manager.DirectorySidebarManager;
 import java.io.File;
 
 /**
- * @author : cccqyu
- * @createTime 2023/10/2  1:29
- * @description 当用户选择打开文件夹时，将创建一个左侧树型结构目录。
+ * 打开文件夹處理器
+ *
+ * <p>当用户选择打开文件夹时，将创建一个左侧树型结构目录。</p>
+ *
+ * @author cccqyu
  */
 public class OpenDirectory implements EventHandler<ActionEvent> {
 
diff --git a/src/main/java/org/jcnc/jnotepad/controller/event/handler/setting/DirTreeBtn.java b/src/main/java/org/jcnc/jnotepad/controller/event/handler/setting/DirTreeBtn.java
index 335a3a5ef6966bf98a0ad79065db9b6f0bd15362..82436b7032718f2d0dbe7c1fe25039574b673dc9 100644
--- a/src/main/java/org/jcnc/jnotepad/controller/event/handler/setting/DirTreeBtn.java
+++ b/src/main/java/org/jcnc/jnotepad/controller/event/handler/setting/DirTreeBtn.java
@@ -4,10 +4,13 @@ import javafx.event.ActionEvent;
 import javafx.event.EventHandler;
 import org.jcnc.jnotepad.views.manager.DirectorySidebarManager;
 
+
 /**
- * @author : cccqyu
- * @createTime 2023/10/2  17:24
- * @description 文件树按钮事件的事件处理程序。
+ * 文件树按钮
+ *
+ * <p>文件树按钮事件的事件处理程序。</p>
+ *
+ * @author cccqyu
  */
 public class DirTreeBtn implements EventHandler<ActionEvent> {
 
diff --git a/src/main/java/org/jcnc/jnotepad/model/entity/DirFileModel.java b/src/main/java/org/jcnc/jnotepad/model/entity/DirFileModel.java
index e67c6bf4c938ebce36b5714118933e0acf95a6f7..9dd30e0d92f9f679662f0cc143984cd5a9ff7d5f 100644
--- a/src/main/java/org/jcnc/jnotepad/model/entity/DirFileModel.java
+++ b/src/main/java/org/jcnc/jnotepad/model/entity/DirFileModel.java
@@ -2,10 +2,13 @@ package org.jcnc.jnotepad.model.entity;
 
 import java.util.List;
 
+
 /**
- * @author : cccqyu
- * @createTime 2023/10/2  20:31
- * @description 文件夹实体类
+ * 文件夹实体类
+ *
+ * <p>用于存储文件夹结构</p>
+ *
+ * @author cccqyu
  */
 public class DirFileModel {
     private String path;
@@ -22,11 +25,7 @@ public class DirFileModel {
     public List<DirFileModel> getChildFile() {
         return childFile;
     }
-
-    public void setChildFile(List<DirFileModel> childFile) {
-        this.childFile = childFile;
-    }
-
+    
     public String getPath() {
         return path;
     }
diff --git a/src/main/java/org/jcnc/jnotepad/ui/dialog/factory/DirectoryChooserFactory.java b/src/main/java/org/jcnc/jnotepad/ui/dialog/factory/DirectoryChooserFactory.java
index dbe4005c15fdea49ee8106f8d57b2d8c5f76f119..a90dec7d4118499d628def123d391efbe5a3b617 100644
--- a/src/main/java/org/jcnc/jnotepad/ui/dialog/factory/DirectoryChooserFactory.java
+++ b/src/main/java/org/jcnc/jnotepad/ui/dialog/factory/DirectoryChooserFactory.java
@@ -4,10 +4,13 @@ import javafx.stage.DirectoryChooser;
 
 import java.io.File;
 
+
 /**
- * @author : cccqyu
- * @createTime 2023/10/2  1:49
- * @description 文件夹选择对话框工厂,该工厂接口用于创建文件夹选择对话框，包括原始和详细两种类型。
+ * 文件夹选择对话框工厂
+ *
+ * <p>文件夹选择对话框工厂,该工厂接口用于创建文件夹选择对话框，包括原始和详细两种类型。</p>
+ *
+ * @author cccqyu
  */
 public interface DirectoryChooserFactory {
     /**
diff --git a/src/main/java/org/jcnc/jnotepad/ui/dialog/factory/impl/BasicDirectoryChooserFactory.java b/src/main/java/org/jcnc/jnotepad/ui/dialog/factory/impl/BasicDirectoryChooserFactory.java
index 20fb5745819ad26f8ed92bf5adb3c05d4a04b38a..acf4298ed2e127ed9d7eec779d947afc8145a6f6 100644
--- a/src/main/java/org/jcnc/jnotepad/ui/dialog/factory/impl/BasicDirectoryChooserFactory.java
+++ b/src/main/java/org/jcnc/jnotepad/ui/dialog/factory/impl/BasicDirectoryChooserFactory.java
@@ -6,9 +6,11 @@ import org.jcnc.jnotepad.ui.dialog.factory.DirectoryChooserFactory;
 import java.io.File;
 
 /**
- * @author : cccqyu@outlook.com
- * @createTime 2023/10/2  1:54
- * @description 基本文件夹选择对话框
+ * 文件夹选择对话框
+ *
+ * <p>基本文件夹选择对话框的封装</p>
+ *
+ * @author cccqyu
  */
 public class BasicDirectoryChooserFactory implements DirectoryChooserFactory {
 
diff --git a/src/main/java/org/jcnc/jnotepad/views/manager/DirectorySidebarManager.java b/src/main/java/org/jcnc/jnotepad/views/manager/DirectorySidebarManager.java
index 3dc35b515d2048a3be1a5f6f90a95a6d0b755a61..50da325b72ef564fd2a08abde2ad64d7463b2adc 100644
--- a/src/main/java/org/jcnc/jnotepad/views/manager/DirectorySidebarManager.java
+++ b/src/main/java/org/jcnc/jnotepad/views/manager/DirectorySidebarManager.java
@@ -1,5 +1,6 @@
 package org.jcnc.jnotepad.views.manager;
 
+import javafx.scene.control.SplitPane;
 import javafx.scene.control.TreeItem;
 import org.jcnc.jnotepad.common.manager.ApplicationCacheManager;
 import org.jcnc.jnotepad.common.util.FileUtil;
@@ -12,9 +13,11 @@ import java.io.File;
 import java.util.List;
 
 /**
- * @author : cccqyu
- * @createTime 2023/10/2  20:33
- * @description 文件树管理类
+ * 文件树管理类
+ *
+ * <p>管理文件树，处理文件树操作</p>
+ *
+ * @author cccqyu
  */
 public class DirectorySidebarManager {
 
@@ -37,20 +40,31 @@ public class DirectorySidebarManager {
 
     private static final DirectorySidebarPane DIRECTORY_SIDEBAR_PANE = DirectorySidebarPane.getInstance();
 
+
+    private static final double lastDividerPosition = 0.3;
+
     /**
      * 控制文件树显示
      */
     public void controlShow() {
-        boolean isVisible = DIRECTORY_SIDEBAR_PANE.isVisible();
-        // 设置自身显示
-        DIRECTORY_SIDEBAR_PANE.setVisible(!isVisible);
-        if (isVisible) {
-            // 布局中移除
-            MAIN_BORDER_PANE.setLeft(null);
+        // 获取分割面板
+        SplitPane center = (SplitPane) MAIN_BORDER_PANE.getCenter();
+        // 获取分割条位置
+        double dividerPosition = center.getDividerPositions()[0];
+        // 保留分割条位置一位小数
+        String formattedNumber = String.format("%.1f", dividerPosition);
+        double roundedNumber = Double.parseDouble(formattedNumber);
+
+        // 分割条位置不等于 代表展开
+        if (roundedNumber != 0.0) {
+            // 收缩分割条 收缩文件树
+            center.setDividerPositions(0.0);
+
         } else {
-            MAIN_BORDER_PANE.setLeft(DIRECTORY_SIDEBAR_PANE);
-        }
+            // 展开分割条，文件树
+            center.setDividerPositions(lastDividerPosition);
 
+        }
     }
 
     /**
@@ -59,12 +73,11 @@ public class DirectorySidebarManager {
      * @param bool 打开
      */
     public void controlShow(boolean bool) {
-        // 设置自身显示
-        DIRECTORY_SIDEBAR_PANE.setVisible(bool);
-        if (!MAIN_BORDER_PANE.getChildren().contains(DIRECTORY_SIDEBAR_PANE)) {
-            MAIN_BORDER_PANE.setLeft(DIRECTORY_SIDEBAR_PANE);
+        if (bool) {
+            // 获取分割面板
+            SplitPane center = (SplitPane) MAIN_BORDER_PANE.getCenter();
+            center.setDividerPositions(lastDividerPosition);
         }
-
     }
 
     /**
diff --git a/src/main/java/org/jcnc/jnotepad/views/manager/MainBorderPaneManager.java b/src/main/java/org/jcnc/jnotepad/views/manager/MainBorderPaneManager.java
index a527423605f7664edb1fa1e7f4fde8e56dba1a86..bf0e08c5b11c36a7b9d14e2c551db36a88a588a2 100644
--- a/src/main/java/org/jcnc/jnotepad/views/manager/MainBorderPaneManager.java
+++ b/src/main/java/org/jcnc/jnotepad/views/manager/MainBorderPaneManager.java
@@ -1,6 +1,8 @@
 package org.jcnc.jnotepad.views.manager;
 
+import javafx.scene.control.SplitPane;
 import org.jcnc.jnotepad.views.root.center.main.MainBorderPane;
+import org.jcnc.jnotepad.views.root.center.main.center.directory.DirectorySidebarPane;
 import org.jcnc.jnotepad.views.root.center.main.center.tab.CenterTabPane;
 
 /**
@@ -12,7 +14,10 @@ public class MainBorderPaneManager {
     private static final MainBorderPaneManager INSTANCE = new MainBorderPaneManager();
 
     private static final MainBorderPane MAIN_BORDER_PANE = MainBorderPane.getInstance();
+    private static final DirectorySidebarPane DIRECTORY_SIDEBAR_PANE = DirectorySidebarPane.getInstance();
 
+    // 默认分割条位置
+    private static final double defaultDividerPositions = 0.3;
     private MainBorderPaneManager() {
 
     }
@@ -22,7 +27,13 @@ public class MainBorderPaneManager {
     }
 
     public void initMainBorderPane() {
-        // 文本框
-        MAIN_BORDER_PANE.setCenterComponent(CenterTabPane.getInstance());
+        // 文件树和文本框的布局
+        SplitPane splitPane = new SplitPane();
+        splitPane.getItems().add(0, DIRECTORY_SIDEBAR_PANE);
+        splitPane.getItems().add(1, CenterTabPane.getInstance());
+        splitPane.setDividerPositions(defaultDividerPositions);
+
+        // 将文件树以及文本框设置在布局中部
+        MAIN_BORDER_PANE.setCenterComponent(splitPane);
     }
 }
diff --git a/src/main/java/org/jcnc/jnotepad/views/root/center/main/center/directory/DirectorySidebarPane.java b/src/main/java/org/jcnc/jnotepad/views/root/center/main/center/directory/DirectorySidebarPane.java
index 823951ccb7d3307d53e79bc5910c1139bd636da2..6ac1d0bc1edf3298d3346aec7991e4d44a9971aa 100644
--- a/src/main/java/org/jcnc/jnotepad/views/root/center/main/center/directory/DirectorySidebarPane.java
+++ b/src/main/java/org/jcnc/jnotepad/views/root/center/main/center/directory/DirectorySidebarPane.java
@@ -1,9 +1,7 @@
 package org.jcnc.jnotepad.views.root.center.main.center.directory;
 
-import javafx.event.EventHandler;
 import javafx.scene.control.TreeItem;
 import javafx.scene.control.TreeView;
-import javafx.scene.input.MouseEvent;
 import org.jcnc.jnotepad.controller.event.handler.menubar.OpenFile;
 import org.jcnc.jnotepad.model.entity.DirFileModel;
 
@@ -12,31 +10,28 @@ import java.util.Objects;
 
 
 /**
- * @author : cccqyu
- * @createTime 2023/10/2  20:34
- * @description TreeView封装
+ * 目录树ui
+ *
+ * <p>TreeView封装</p>
+ *
+ * @author cccqyu
  */
 public class DirectorySidebarPane extends TreeView<DirFileModel> {
 
     private static final DirectorySidebarPane INSTANCE = new DirectorySidebarPane();
 
     private DirectorySidebarPane() {
-        this.setVisible(false);
-
-        this.setOnMouseClicked(new EventHandler<MouseEvent>() {
-            @Override
-            public void handle(MouseEvent mouseEvent) {
-                if (mouseEvent.getClickCount() == 2) {
-                    TreeItem<DirFileModel> item = DirectorySidebarPane.this.getSelectionModel().getSelectedItem();
-                    if (Objects.isNull(item)) return;
-                    File file = new File(item.getValue().getPath());
-
-                    if(!file.isFile()){
-                        return;
-                    }
-                    new OpenFile().openFile(file);
-
+        this.setOnMouseClicked(mouseEvent -> {
+            if (mouseEvent.getClickCount() == 2) {
+                TreeItem<DirFileModel> item = DirectorySidebarPane.this.getSelectionModel().getSelectedItem();
+                if (Objects.isNull(item)) return;
+                File file = new File(item.getValue().getPath());
+
+                if (!file.isFile()) {
+                    return;
                 }
+                OpenFile.openFile(file);
+
             }
         });
     }
diff --git a/src/main/java/org/jcnc/jnotepad/views/root/left/sidebar/tools/ToolVerticalBox.java b/src/main/java/org/jcnc/jnotepad/views/root/left/sidebar/tools/ToolVerticalBox.java
index 7caf9155a4fc83427c64302f80ea63cfa77a3a18..8f2f74cf305a884d4bacf33e51105a03c404647d 100644
--- a/src/main/java/org/jcnc/jnotepad/views/root/left/sidebar/tools/ToolVerticalBox.java
+++ b/src/main/java/org/jcnc/jnotepad/views/root/left/sidebar/tools/ToolVerticalBox.java
@@ -5,9 +5,11 @@ import javafx.scene.layout.VBox;
 import org.jcnc.jnotepad.ui.module.AbstractVerticalBox;
 
 /**
- * @author : cccqyu
- * @createTime 2023/10/2  20:40
- * @description 垂直布局
+ * 垂直布局类
+ *
+ * <p>用于toolbar的垂直布局</p>
+ *
+ * @author cccqyu
  */
 public class ToolVerticalBox extends AbstractVerticalBox {
     /**