diff --git a/README.md b/README.md
index f87e289..1ca6f2a 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,7 @@
 
 1. `npm install md-editor-v3 --save`
 2. 在 src/components/MainEditor.vue 组件里使用 md-editor-v3 组件
+3. 实现保存功能；自定义工具栏实现显示/隐藏目录以及发布等功能
 
 ### 调试应用
 
diff --git a/src/App.vue b/src/App.vue
index 08dc946..182c63a 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -12,7 +12,7 @@
         <template #right>
             <div ref="splitRight" class="split-right">
                 <MainEditor ref="mainEditor" v-model:markdownCode="markdownCode"
-                    :save="writeFileContent">
+                    v-model:leftSidebarState="leftSidebarState" :save="writeFileContent">
                 </MainEditor>
             </div>
         </template>
@@ -36,24 +36,35 @@ async function greet() {
 }
 
 // 使用 Split 组件动态控制页面左右布局
-const split = ref(0.2);
+const defaultSplit = 0.15; // 默认左侧边栏和右侧区域的比例为 1.5:8.5
+const split = ref(defaultSplit);
 const splitTrigger = useTemplateRef('splitTrigger');
 const splitRight = useTemplateRef('splitRight');
 const splitRightWidth = ref(0);
-const hiddenSplitLeft = ref("");
+const hiddenSplitLeft = ref('');
+const leftSidebarState = ref('open');
 watch(split, (newSplit) => {
     splitRightWidth.value = splitRight.value.offsetWidth;
     // 当 split 小于某个值时，隐藏左边布局
     if (newSplit < 0.05) {
-        if (hiddenSplitLeft.value == "") {
-            hiddenSplitLeft.value = "hidden"
+        leftSidebarState.value = 'close';
+        if (hiddenSplitLeft.value == '') {
+            hiddenSplitLeft.value = 'hidden';
         }
     } else {
-        if (hiddenSplitLeft.value == "hidden") {
-            hiddenSplitLeft.value = ""
+        leftSidebarState.value = 'open';
+        if (hiddenSplitLeft.value == 'hidden') {
+            hiddenSplitLeft.value = '';
         }
     }
 })
+watch(leftSidebarState, (state) => {
+    if (state == 'open') {
+        split.value = defaultSplit;
+    } else {
+        split.value = 0;
+    }
+})
 
 // 监听根目录路径。如果之前已经选过目录，初始界面直接加载该目录
 const rootFolderPath = ref(localStorage.getItem('rootPathOfFolderTree') || "");
diff --git a/src/components/MainEditor.vue b/src/components/MainEditor.vue
index f58c069..c5e7715 100644
--- a/src/components/MainEditor.vue
+++ b/src/components/MainEditor.vue
@@ -2,7 +2,27 @@
     <Split v-model="split">
         <template #left>
             <MdEditor ref="editorRef" v-model="editorState.text" :id="editorState.id" :theme="editorState.theme"
-                :style="{ height: editorState.height }" :toolbars="editorState.toolbars" :toolbarsExclude="['github']">
+                :style="{ height: editorState.height }" :toolbars="editorState.toolbars" :toolbarsExclude="['github']"
+                @onSave="onSave" @onHtmlChanged="getPreviewedHTML">
+                <template #defToolbars>
+                    <NormalToolbar :title="leftSidebarState == 'open' ? '隐藏文件树' : '显示文件树'" @onClick="toggleLeftSideBar">
+                        <template #trigger>
+                            <Icon v-if="leftSidebarState == 'open'" type="ios-arrow-dropleft" size="22" />
+                            <Icon v-else type="ios-arrow-dropright" size="22" />
+                        </template>
+                    </NormalToolbar>
+                    <NormalToolbar :title="split == 1 ? '显示目录' : '隐藏目录'" @onClick="toggleCatalog">
+                        <template #trigger>
+                            <Icon :class="split == 1 ? '' : 'md-editor-toolbar-active'" type="ios-list-box-outline"
+                                size="22" />
+                        </template>
+                    </NormalToolbar>
+                    <NormalToolbar title="发布文章" @onClick="publish">
+                        <template #trigger>
+                            <Icon class="md-editor-icon" type="md-cloud-upload" size="22" />
+                        </template>
+                    </NormalToolbar>
+                </template>
             </MdEditor>
         </template>
         <template #trigger>
@@ -18,7 +38,7 @@
 
 <script setup>
 import 'md-editor-v3/lib/style.css';
-import { MdEditor, MdCatalog } from 'md-editor-v3';
+import { MdEditor, MdCatalog, NormalToolbar } from 'md-editor-v3';
 import { ref, reactive, watch } from "vue";
 import { Message } from 'view-ui-plus'
 
@@ -28,6 +48,11 @@ const props = defineProps({
         required: false,
         default: ''
     },
+    leftSidebarState: {
+        type: String,
+        required: false,
+        default: 'open'
+    },
     save: {
         type: Function,
         required: false,
@@ -39,10 +64,12 @@ const props = defineProps({
 
 const emit = defineEmits([
     'update:markdownCode',
+    'update:leftSidebarState',
 ]);
 
 // 定义布局，主要用于在右边显示文章目录
-const split = ref(0.8);
+const split = ref(1);
+const defaultCatalogSplit = 0.2; // 默认目录和编辑器的比例为 8:2
 const hiddenSplitRight = split.value == 1 ? ref('hidden') : ref('');
 watch(split, (newSplit) => {
     if (newSplit > 0.95) {
@@ -65,6 +92,9 @@ const editorState = reactive({
     height: '100vh',
     text: props.markdownCode,
     toolbars: [
+        0,
+        1,
+        '-',
         'bold',
         'underline',
         'italic',
@@ -89,6 +119,7 @@ const editorState = reactive({
         'revoke',
         'next',
         'save',
+        2,
         '=',
         'prettier',
         'pageFullscreen',
@@ -110,6 +141,41 @@ watch(() => editorState.text, (newCode) => {
     emit('update:markdownCode', newCode);
 })
 
+const toggleLeftSideBar = () => {
+    if (props.leftSidebarState == 'open') {
+        emit('update:leftSidebarState', 'close');
+    } else {
+        emit('update:leftSidebarState', 'open');
+    }
+}
+
+const toggleCatalog = () => {
+    if (split.value < 1) {
+        split.value = 1;
+    } else {
+        split.value = 1 - defaultCatalogSplit;
+    }
+}
+
+const onSave = (v, h) => {
+    // 调用 save 方法保存代码（参数 v 为 markdown code）
+    props.save(v);
+
+    // 使用 h 可以在保存时直接获取 html
+    // h.then((html) => {
+    //     console.log(html);
+    // });
+};
+
+const getPreviewedHTML = (html) => {
+    console.log(html);
+}
+
+const publish = () => {
+    // TODO 调用接口将 markdown 源码或者 HTML 代码发布到云端
+    Message.warning('抱歉，该功能暂未开放');
+}
+
 // 对父组件暴露数据或方法
 defineExpose({})
 </script>