加入了返回，改进了用户控制

src/upload/upload.js

@@ -8,6 +8,7 @@ import { images } from '../resources.json';
 
 import './upload.css';
 import UserControl from '../components/UserControl/UserControl';
+import { Link } from '../components/SingleRouter/SingleRouter';
 
 export class UploadContainer extends Component {
   constructor(props) {
@@ -67,6 +68,11 @@ export class UploadContainer extends Component {
           <div className="sdu">
             <img src={images.icon} className="sdu-logo" alt="logo" />
             <img src={images.name} className="sdu-name" alt="" />
+            <div className="nav">
+              <div className="nav-item">
+                <Link to="/" className="nav-link">首页</Link>
+              </div>
+            </div>
           </div>
           <UserControl pageAuthLevel={1} />
         </div>