updata

src/modules/exam-module/src/ExamTopic.vue

@@ -343,12 +343,12 @@ export default {
           setTimeout(() => {
             document.getElementById('bottom-view').scrollTop = 0
             this.swiper.slideTo(i, 0, false)
-            this.currentNum = this.swiper.activeIndex + 1
             this.topicCard.isShow = false
             this.currentNum === this.questionsData.sheet.question_count
               ? this.nextBtnShow = false
               : this.nextBtnShow = true
             this.getIsSign()
+            this.currentNum = this.swiper.activeIndex + 1
           }, 200)
         }
       }