bug fix

src/view/Manage/AssetManage/Component/AssetTree.jsx

 import React, { useEffect, useState, useRef } from 'react';
-import {Card, Spin, Tooltip, Tree, Modal, AutoComplete, Select} from 'antd';
+import {Card, Spin, Tooltip, Tree, Modal, AutoComplete, Select,Button} from 'antd';
 import { ReloadOutlined, SettingOutlined } from '@ant-design/icons';
 import { useContextMenu, Menu as RcMenu, Item as RcItem } from "react-contexify";
 import LocalStorage from 'local-storage';
@@ -607,11 +607,8 @@ const AssetTree = (props) => {
           }
           </Select>
           <Tooltip title="刷新目录">
-            <ReloadOutlined className='default' onClick={refreshTree} style={{ fontSize:16,cursor:'pointer',flex:1}} />
+            <Button type='text' onClick={refreshTree} icon={<ReloadOutlined />} />
           </Tooltip>
-          {/* <Tooltip title="自定义目录">
-            <SettingOutlined className='default' onClick={customDir} style={{ fontSize:16,cursor:'pointer',flex:1}} />
-          </Tooltip> */}
           <div style={{ flex: 3 }}></div>
         </div>
       }