diff --git a/index.php b/index.php
index 04cbc13..c5cc33b 100644
--- a/index.php
+++ b/index.php
@@ -14,6 +14,10 @@ $c = strip_tags($c);
 if( !file_exists('./config.php') ) {
 	exit('<h3>配置文件不存在，请将config.simple.php复制一份并命名为config.php</h3>');
 }
+//检查数据库是否存在，不存在则复制数据库
+if( !file_exists('./db/onenav.db3') ) {
+	copy('db/onenav.simple.db3','db/onenav.db3');
+}
 
 //载入配置文件
 require("./config.php");
diff --git a/templates/admin/add_link.php b/templates/admin/add_link.php
index 683b0e9..7737d86 100644
--- a/templates/admin/add_link.php
+++ b/templates/admin/add_link.php
@@ -19,7 +19,7 @@
     </div>
   </div>
   <div class="layui-form-item">
-    <label class="layui-form-label">选择框</label>
+    <label class="layui-form-label">所属分类</label>
     <div class="layui-input-block">
       <select name="fid" lay-verify="required" lay-search>
         <option value=""></option>
diff --git a/templates/admin/static/embed.js b/templates/admin/static/embed.js
index bfb5afb..f154efb 100644
--- a/templates/admin/static/embed.js
+++ b/templates/admin/static/embed.js
@@ -264,6 +264,7 @@ layui.use(['element','table','layer','form'], function(){
   });
   //识别链接信息
   form.on('submit(get_link_info)', function(data){
+    //是用ajax异步加载
     $.post('/index.php?c=api&method=get_link_info',data.field.url,function(data,status){
       //如果添加成功
       if(data.code == 0) {