录音组件改为只有输入时显示重做按钮

src/views/book/courseware/preview/components/record_input/RecordInputPreview.vue

@@ -28,6 +28,7 @@
         />
       </div>
       <PreviewOperation
+        v-if="isEnable(data.is_enable_input)"
         :is-show-answer="isShowAnswers"
         :is-show-retry="isEnable(data.is_enable_input)"
         @showAnswerAnalysis="showAnswerAnalysis"