upload url

public/react/src/modules/courses/busyWork/NewWork.js

@@ -3,7 +3,8 @@ import { Input, InputNumber, Form, Button, Checkbox, Upload, Icon, message, Moda
 import axios from 'axios'
 import '../css/busyWork.css'
 import '../css/Courses.css'
-import { WordsBtn, getUrl, ConditionToolTip, appendFileSizeToUploadFile, appendFileSizeToUploadFileAll } from 'educoder'
+import { WordsBtn, getUrl, ConditionToolTip, appendFileSizeToUploadFile, appendFileSizeToUploadFileAll
+    , getUploadActionUrl } from 'educoder'
 import TPMMDEditor from '../../tpm/challengesnew/TPMMDEditor';
 import CBreadcrumb from '../common/CBreadcrumb'
 
@@ -331,7 +332,7 @@ class NewWork extends Component{
       // https://github.com/ant-design/ant-design/issues/15505
       // showUploadList={false}，然后外部拿到 fileList 数组自行渲染列表。
       // showUploadList: false,
-      action: `${getUrl()}/api/attachments.json`,
+      action: `${getUploadActionUrl()}`,
       onChange: this.handleContentUploadChange,
       onRemove: (file) => this.onAttachmentRemove(file, 'contentFileList'),
       beforeUpload: (file) => {