fix

jd_prodev_subject.js

@@ -47,6 +47,7 @@ async function main() {
     $.code = '0'
     await subjectChallengeMain('recommend')
     // console.log($.listData)
+    if ($.listData) {
         for (const vo of $.listData) {
             console.log(vo.subjectTitle+" "+vo.taskMsg)
             let contentList = await task('channelBff_querySubject', { "page": 1, "pageSize": "15", "scene": "", "subjectId": vo.subjectId, "tabId": "-1", "tabType": "2", "topContentId": "", "topContents": "" })
@@ -104,6 +105,8 @@ async function main() {
     
         }
     }
+
+}
 function getUUID(format = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", UpperCase = 0) {
   return format.replace(/[xy]/g, function (c) {
     var r = (Math.random() * 16) | 0,