diff --git a/src/components/FancyTree/index.vue b/src/components/FancyTree/index.vue
index 34923af..62d825f 100644
--- a/src/components/FancyTree/index.vue
+++ b/src/components/FancyTree/index.vue
@@ -103,7 +103,7 @@
     watch: {
       directoryTreeData(newVal){
         this.directoryTreeData = newVal
-        this.loadTreeData(this.directoryTreeData)
+        this.loadTreeData(this.directoryTreeData,true)
       }
     },
     computed: {
diff --git a/src/components/preview/SimTextPreview.vue b/src/components/preview/SimTextPreview.vue
index c8f154f..6e13902 100644
--- a/src/components/preview/SimTextPreview.vue
+++ b/src/components/preview/SimTextPreview.vue
@@ -977,6 +977,7 @@
               background-color: $fancytreeTitleActiveColor;
               border-color: $fancytreeTitleActiveColor;
             }
+
           }
         }
 
@@ -1133,6 +1134,7 @@
                 background-color: #202021;
                 border: unset;
               }
+
             }
           }
         }
@@ -1180,4 +1182,7 @@
       }
     }
   }
+  >>> .fancytree-expander {
+    margin-top: 5px;
+  }
 </style>
diff --git a/src/router/index.js b/src/router/index.js
index 7dcf11e..54040b6 100644
--- a/src/router/index.js
+++ b/src/router/index.js
@@ -166,18 +166,18 @@ export const constantRoutes = [
     ]
   },
 
-  {
-    path: '/demo',
-    component: Layout,
-    children: [
-      {
-        path: 'index',
-        name: 'demo',
-        component: () => import('@/views/demo/index'),
-        meta: { title: 'demo', icon: 'example' }
-      }
-    ]
-  },
+  // {
+  //   path: '/demo',
+  //   component: Layout,
+  //   children: [
+  //     {
+  //       path: 'index',
+  //       name: 'demo',
+  //       component: () => import('@/views/demo/index'),
+  //       meta: { title: 'demo', icon: 'example' }
+  //     }
+  //   ]
+  // },
 
   {
     path: '/markdown',