diff --git a/src/views/course/Courseware.vue b/src/views/course/Courseware.vue
index b8832dea..b41acd18 100644
--- a/src/views/course/Courseware.vue
+++ b/src/views/course/Courseware.vue
@@ -197,7 +197,7 @@
         <el-button type="primary" @click="saveUpload()">保存</el-button>
       </span>
     </el-dialog>
-    <el-dialog title="预览课件" :close-on-click-modal="false" width="800px" :visible.sync="coursewareShow" custom-class="g-dialog">
+    <el-dialog v-if="coursewareShow" title="预览课件" :close-on-click-modal="false" width="800px" :visible.sync="coursewareShow" custom-class="g-dialog">
       <div>
         <div class="courseware-title">{{ fileInfo.name }}</div>
         <div class="courseware-icon">
@@ -233,7 +233,7 @@
       </div>
       <span slot="footer"><el-button type="primary" @click="coursewareShow = false">关闭</el-button></span>
     </el-dialog>
-    <el-dialog title="编辑课件" :close-on-click-modal="false" :visible.sync="editCoursewareShow" custom-class="g-dialog">
+    <el-dialog v-if="editCoursewareShow" title="编辑课件" :close-on-click-modal="false" :visible.sync="editCoursewareShow" custom-class="g-dialog">
       <div>
         <el-form ref="form" :model="form" label-width="80px">
           <!-- <el-form-item label="资源归属">