diff --git a/README.md b/README.md
index 03be44e..0e88e6a 100644
--- a/README.md
+++ b/README.md
@@ -43,3 +43,9 @@ This template should help get you started developing with Tauri + Vue 3 in Vite.
 
 1. `npm run tauri add fs`
 2. `npm run tauri add dialog`
+
+## 支持读本地目录，读写本地文件
+
+1. 新建 SelectFolder.vue 用于打开本地目录
+2. 在 App.vue 使用组件 SelectFolder 和 MarkdownEditor.vue
+3. 使用 plugin-fs 插件读写本地文件内容
diff --git a/src-tauri/capabilities/default.json b/src-tauri/capabilities/default.json
index 724be5d..bfb4265 100644
--- a/src-tauri/capabilities/default.json
+++ b/src-tauri/capabilities/default.json
@@ -9,6 +9,22 @@
     "core:default",
     "opener:default",
     "fs:default",
-    "dialog:default"
+    "dialog:default",
+    {
+      "identifier": "fs:scope",
+      "allow": [
+        {
+          "path": "$HOME/**"
+        }
+      ]
+    },
+    {
+      "identifier": "fs:allow-app-write",
+      "allow": [
+        {
+          "path": "$HOME/**"
+        }
+      ]
+    }
   ]
 }
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diff --git a/src/App.vue b/src/App.vue
index b8801dc..de9895f 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -1,7 +1,12 @@
 <script setup>
 import { ref } from "vue";
 import { invoke } from "@tauri-apps/api/core";
+import { readTextFile, writeTextFile } from '@tauri-apps/plugin-fs';
+import MarkdownEditor from './components/MarkdownEditor.vue'
+import SelectFolder from './components/SelectFolder.vue'
 
+const markdownRef = ref(null);
+const filePath = ref("");
 const greetMsg = ref("");
 const name = ref("");
 
@@ -9,30 +14,46 @@ async function greet() {
   // Learn more about Tauri commands at https://tauri.app/develop/calling-rust/
   greetMsg.value = await invoke("greet", { name: name.value });
 }
+
+async function showFileTree(tree) {
+  console.log(tree)
+}
+
+async function readFileContent() {
+  try {
+    console.log('文件读取成功:', markdownRef.value.setMarkdownCode(await readTextFile(filePath.value)))
+  } catch (err) {
+    console.error('文件读取失败:', err);
+  }
+}
+
+async function writeFileContent() {
+  console.log('文件新的内容:', markdownRef.value.getMarkdownCode())
+  try {
+    console.log('文件更新成功:', await writeTextFile(filePath.value, markdownRef.value.getMarkdownCode()))
+  } catch (err) {
+    console.error('文件更新失败:', err);
+  }
+}
 </script>
 
 <template>
   <main class="container">
-    <h1>Welcome to Tauri + Vue</h1>
+    <div class="row">
+      <SelectFolder @folder-selected="showFileTree" />
+    </div>
 
     <div class="row">
-      <a href="https://vitejs.dev" target="_blank">
-        <img src="/vite.svg" class="logo vite" alt="Vite logo" />
-      </a>
-      <a href="https://tauri.app" target="_blank">
-        <img src="/tauri.svg" class="logo tauri" alt="Tauri logo" />
-      </a>
-      <a href="https://vuejs.org/" target="_blank">
-        <img src="./assets/vue.svg" class="logo vue" alt="Vue logo" />
-      </a>
+      <input id="file-path-input" v-model="filePath" placeholder="Enter a file path..." />
+      <button @click="readFileContent">读取指定文件</button>
+      <button @click="writeFileContent">更新指定文件</button>
     </div>
-    <p>Click on the Tauri, Vite, and Vue logos to learn more.</p>
 
-    <form class="row" @submit.prevent="greet">
-      <input id="greet-input" v-model="name" placeholder="Enter a name..." />
-      <button type="submit">Greet</button>
-    </form>
-    <p>{{ greetMsg }}</p>
+    <MarkdownEditor ref="markdownRef"
+      width='1000px'
+      height='1000px'
+      markdownCode="# hello tauri"
+    />
   </main>
 </template>
 
diff --git a/src/components/SelectFolder.vue b/src/components/SelectFolder.vue
new file mode 100644
index 0000000..588046e
--- /dev/null
+++ b/src/components/SelectFolder.vue
@@ -0,0 +1,76 @@
+<template>
+    <button @click="selectFolder">选择目录</button>
+</template>
+
+<script>
+import { join } from '@tauri-apps/api/path';
+import { open } from '@tauri-apps/plugin-dialog';
+import { readDir } from '@tauri-apps/plugin-fs';
+
+// 文件树示例
+let folderTreeData = {
+    "path": "root-path/root",
+    "name": "root",
+    "nodes": [
+        {
+            "path": "root-path/root/folder1",
+            "name": "folder1",
+            "nodes": [
+                {
+                    "path": "root-path/root/folder1/folder1-file2",
+                    "name": "folder1-file2.txt.md",
+                    "suffix": "md",
+                },
+            ]
+        },
+        {
+            "path": "root-path/root/file3",
+            "name": "file3.txt",
+            "suffix": "txt",
+        },
+    ]
+}
+
+async function readDirRecursively(parent, path) {
+    // 拼接得到当前文件夹路径
+    const folderPath = await join(parent, path);
+    let folderTreeNode = {
+        "path": folderPath,
+        "name": folderPath.split('/').pop(),
+        "nodes": []
+    }
+
+    // 遍历该文件夹下所有实体
+    const entries = await readDir(folderPath);
+    for (const entry of entries) {
+        const entryPath = await join(folderPath, entry.name);
+        if (entry.isDirectory) {
+            folderTreeNode.nodes.push(await readDirRecursively(folderPath, entry.name))
+        } else {
+            const fileSuffix = entry.name.split('.').pop()
+            folderTreeNode.nodes.push({
+                "path": entryPath,
+                "name": entry.name,
+                "suffix": fileSuffix,
+            })
+        }
+    }
+    return folderTreeNode
+}
+
+export default {
+    methods: {
+        async selectFolder() {
+            const filePath = await open(
+            {
+                filters: [{ name: 'All Files', extensions: ['.'] }],
+                directory: true
+            });
+            if (filePath) {
+                folderTreeData = await readDirRecursively(filePath, '')
+                this.$emit('folder-selected', folderTreeData);
+            }
+        }
+    }
+}
+</script>
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