update

pbl.js

@@ -1014,15 +1014,17 @@ function addCourseInviteCode(courseId, inviteCode) {
     var _courses = courseId
     var _tid = inviteCode
     for (let i = 0; i < _tid.length; i++) {
-        var _userdata = [
+        let _userdata = [
             _courses,
             _tid[i].cid,
             _tid[i].ic,
         ];
         _userdata.unshift(_mysqlLabor[0], _mysqlLabor[1], "add_courseInviteCode");
-        mysql.usselect(_userdata, function(ret) {
-            // console.log(ret);
-        });
+        setTimeout(()=>{
+            mysql.usselect(_userdata, function(ret) {
+                // console.log(ret);
+            });
+        },i*100)
     }
 }