Merge branch '3.x' of https://gitlab.yiring.com/basic/basic-uniapp-v3 into examples

src/pages/common/viewer/pdf.vue

@@ -45,6 +45,7 @@
                 :key="item.src"
                 :src="item.src"
                 width="750"
+                height="0"
                 :radius="0"
                 @tap="preview(index)"
             />