修复了可以上传多文件的bug

src/components/Page/UploadFile.js

@@ -70,6 +70,7 @@ class UploadFile extends Component {
                             beforeUpload={this.beforeUpload}
                             name={'upload'}
                             multiple={false}
+                            maxCount={1}
                         >
                             <p className="ant-upload-drag-icon">
                                 <InboxOutlined/>