bug fix

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

@@ -226,7 +226,7 @@ const UpdateDirectoryModal = (props) => {
           >
             <Radio.Group>
               <Radio value='theme'>栏目</Radio>
-              <Radio value='directory' disabled={ dirId===null }>目录</Radio>
+              <Radio value='directory' disabled={ !dirId }>目录</Radio>
             </Radio.Group>
           </Form.Item>
         }