diff --git a/src/pages/index/components/banner/index.vue b/src/pages/index/components/banner/index.vue
index 9fc34bc..e397f05 100644
--- a/src/pages/index/components/banner/index.vue
+++ b/src/pages/index/components/banner/index.vue
@@ -20,7 +20,7 @@ const ctx = reactive({
 function previewImage(item) {
   uni.previewImage({
     current: item.url,
-    urls: this.pic.list.map(item => item.url),
+    urls: ctx.pic.list.map(item => item.url),
     indicator: 'default',
     loop: true
   })