update

pbl.js

@@ -479,6 +479,10 @@ router.route('/addCourseWorks4').all((req, res, next) => {
     postmysql3(req, res, "addCourseWorks3");
 });
 //上传文件
+router.route('/addCourseWorks4s').all((req, res, next) => {
+    postmysql3(req, res, "addCourseWorks4s");
+});
+//上传文件
 router.route('/addCourseWorks5').all((req, res, next) => {
     postmysql(req, res, "addCourseWorks3");
 });