Merge branch 'feature-tianyong'

src/views/courseware-play/index.tsx

@@ -207,7 +207,7 @@ export default defineComponent({
             url:
               item.type === 'SONG'
                 ? 'https://oss.dayaedu.com/ktqy/1698420034679a22d3f7a.png'
-                : item.type === 'PPT' ? 'https://oss.dayaedu.com/ktqy/12/1701914331665.png' 
+                : item.type === 'PPT' ? 'https://oss.dayaedu.com/ktqy/12/1701931810284.png' 
                 : item.coverImg
           };
         });