diff --git a/src/renderer/src/AixPPTist/src/api/watcher.ts b/src/renderer/src/AixPPTist/src/api/watcher.ts
index f5d91cb..236c0e8 100644
--- a/src/renderer/src/AixPPTist/src/api/watcher.ts
+++ b/src/renderer/src/AixPPTist/src/api/watcher.ts
@@ -23,7 +23,6 @@ export default () => {
   const resource = sessionStore.get('curr.resource') // apt 资源
   const smarttalk = sessionStore.get('curr.smarttalk') // 备课资源
   const execPlay = useExecPlay() // 播放控制
-  
   // 监听幻灯片内容变化
   watch(() => slidesStore.slides, (newVal, oldVal) => {
     PPTApi.updateSlides(newVal, oldVal) // 更新幻灯片内容
@@ -39,7 +38,14 @@ export default () => {
   watch(() => slidesStore.slideIndex, (newVal, oldVal) => {
     PPTApi.updateWorkList()
   })
-  
+  // 监听幻灯片下画布尺寸比例变化
+  watch(() => slidesStore.viewportRatio, (newVal, oldVal) => {
+    const width = slidesStore.viewportSize
+    const widthandration={width, ratio:newVal}
+    const data = { id: resource.id,  parentContent: JSON.stringify(widthandration)}
+    PPTApi.updateSlide(data)
+  })
+
   // 消息监听ws
   // console.log('监听器已开启', ChatWs)
   if (!!ChatWs.ws) {