优化生成封面图

src/views/Editor/Toolbar/ElementTemplateData.vue

@@ -177,7 +177,7 @@
 
     <!-- 生成封面图 -->
     <div style="opacity: 0;position: fixed;left: 100px;top: 0;overflow: auto;z-index: -1;" 
-    v-if="toolbarState=='elTemplateData'&&model&&model==1&&slides.length>0&&slideIndex>=0">
+    v-if="model==1&&slideIndex>=0">
         <div class="export-img-dialog">
           <div class="thumbnails-view">
             <div class="thumbnails FeatureImgRef" ref="FeatureImgRef">
@@ -375,6 +375,7 @@
         isCoverImgStore.setIsCoverImg(true)
         let datas = await exportFeatureImg(FeatureImgRef.value, 'jpeg', 1, false,0)
         if(datas){
+            let t =new Date().getTime()
             let name = new Date().getTime()+".jpg"
             const file = dataURLtoFile(datas, name)
             let url = ''
@@ -383,7 +384,7 @@
             }else {
                 namePath = CoverImgPath[CoverImgPath.length-1]
             }
-            url = await AliyunUpload.UploadAsync(file,`Feature/${namePath}`)
+            url = await AliyunUpload.UploadAsync(file,`Feature/${namePath}?t=${t}`)
             coverImgStore.setCoverImg(url)
             isCoverImgStore.setIsCoverImg(false)
             queryObj.value.CoverImg = CoverImg.value