Merge pull request 'fix：个人中心修改学科问题；' (#68) from yws_dev into main

Reviewed-on: #68

src/renderer/src/views/profile/userInfo.vue

@@ -162,8 +162,8 @@ setTimeout(() => {
 function submit() {
   proxy.$refs.userRef.validate((valid) => {
     if (valid) {
-      userStore.user.edusubject = sessionStore.get('edusubject')
-      userStore.user.edustage = sessionStore.get('edustage')
+      userStore.user.edusubject = sessionStore.get('edusubject') ? sessionStore.get('edusubject') : userStore.user.edusubject
+      userStore.user.edustage = sessionStore.get('edustage') ? sessionStore.get('edustage') : userStore.user.edustage
       updateUserInfo(userStore.user).then((response) => {
         if(response.code == 200){
           userStore.login({username:userStore.user.userName,password:userStore.user.plainpwd}).then(() => {