diff --git a/.gitignore b/.gitignore
index ed8ebf5..b187fbd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
-__pycache__
\ No newline at end of file
+__pycache__
+*.txt
\ No newline at end of file
diff --git a/inject.js b/inject.js
index b47d05b..e09156e 100644
--- a/inject.js
+++ b/inject.js
@@ -186,7 +186,35 @@ Object.assign(native, {
     return handler('quit', {}, null)
   },
   fs: {
-    read(filepath) {}
+    read(filepath) {
+      return handler('fs', { action: 'read', filepath })
+    },
+    write(filepath, content = '', append = false) {
+      return handler('fs', {
+        action: 'write',
+        filepath,
+        content,
+        append
+      })
+    },
+    exists(filepath) {
+      return handler('fs', { action: 'exists', filepath })
+    },
+    isfile(filepath) {
+      return handler('fs', { action: 'isfile', filepath })
+    },
+    isdir(filepath) {
+      return handler('fs', { action: 'isdir', filepath })
+    },
+    remove(filepath) {
+      return handler('fs', { action: 'remove', filepath })
+    },
+    rename(filepath, target) {
+      return handler('fs', { action: 'rename', filepath, target })
+    },
+    copy(filepath, target) {
+      return handler('fs', { action: 'copy', filepath, target })
+    }
   },
   image(filepath) {
     return handler('image', { value: filepath }).then(r => new NativeImage(r))
diff --git a/main.py b/main.py
index 5a14429..35920e5 100755
--- a/main.py
+++ b/main.py
@@ -1,6 +1,6 @@
 #!/usr/bin/python3 
 
-import gi, json, os
+import gi, json, os, shutil
 
 
 gi.require_version("Gtk", "3.0")
@@ -173,7 +173,48 @@ class WebKitWindow(Gtk.Window):
 
     match event:
       case 'fs':
-        pass
+        filepath = params['filepath']
+        if params['action'] == 'read':
+          file = open(filepath)
+          output = file.read()
+
+        if params['action'] == 'write':
+          try:
+            file = open(filepath, 'a' if params['append'] else 'w')
+            output = file.write(params['content'])
+          finally:
+            if file:
+              file.close()
+
+        if params['action'] == 'exists':
+          output = os.path.exists(filepath)
+
+        if params['action'] == 'list':
+          file = open(filepath)
+          output = file.read()
+
+        if params['action'] == 'remove':
+          if os.path.isfile(filepath):
+            output = os.remove(filepath)
+          elif os.path.isdir(filepath):
+            output = os.removedirs(filename)
+
+        if params['action'] == 'rename':
+          if os.path.exists(filepath):
+            output = shutil.move(filepath, params['target'])
+
+        if params['action'] == 'copy':
+          if os.path.exists(filepath):
+            output = shutil.copy2(filepath, params['target'])
+
+        if params['action'] == 'isfile':
+          output = os.path.isfile(filepath)
+   
+        if params['action'] == 'isdir':
+          output = os.path.isdir(filepath)
+       
+
+        
 
       case 'clipboard':
         # 读文本
@@ -304,14 +345,6 @@ class WebKitWindow(Gtk.Window):
           output = self.is_visible()
         
 
-
-        
-
-
-
-
-      case _:
-        output = {"foo": 123, "bar": (11,22,33)}
     # 有回调则返回结果
     if callback :
       self.call_js(callback, output)
diff --git a/webview/app.js b/webview/app.js
index 9f38ed2..22560ff 100644
--- a/webview/app.js
+++ b/webview/app.js
@@ -10,7 +10,8 @@ import { html, css, Component } from 'wkit'
 class App extends Component {
   static props = {
     input: '',
-    img: ''
+    img: '',
+    content: ''
   }
 
   static styles = css`
@@ -28,7 +29,7 @@ class App extends Component {
 
       <a target="_blank" href="about:blank">打开控制台</a>
 
-      <div class="output">loading...</div>
+      <div class="output">${this.content || 'loading...'}</div>
 
       <input value=${this.input} />
 
@@ -50,6 +51,35 @@ class App extends Component {
       >
         unregisterall
       </button>
+      <button
+        @click=${async function () {
+          let data = await native.fs.read('/code/gtk/webkit/demo.txt')
+          console.log(data)
+          this.content = data
+        }}
+      >
+        cat file
+      </button>
+      <button
+        @click=${async function () {
+          await native.fs.write(
+            '/code/gtk/webkit/demo.txt',
+            'hello world 222\n'
+          )
+        }}
+      >
+        echo >> file
+      </button>
+      <button
+        @click=${async function () {
+          await native.fs.copy(
+            '/code/gtk/webkit/demo3.txt',
+            '/code/gtk/webkit/demo2.txt'
+          )
+        }}
+      >
+        rename
+      </button>
       <img style="width:100px;border:1px solid #09f;" src=${this.img} />
       <textarea @paste=${this.pasteImg}></textarea>
     `