diff --git a/README.md b/README.md
index bd2edd625..a491fb94a 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,7 @@
 <p align="center">
     <img src="https://img.shields.io/npm/v/vant.svg?style=flat" alt="npm version" />
     <img src="https://travis-ci.org/youzan/vant.svg?branch=master" alt="Build Status" />
+    <img src="https://img.shields.io/npm/dt/vant.svg" alt="downloads" />
     <img src="https://img.shields.io/npm/dm/vant.svg" alt="downloads" />
     <img src="https://img.badgesize.io/https://unpkg.com/vant/lib/vant.min.js?compression=gzip&style=flat-square&label=JS%20gzip%20size" alt="JS Gzip Size" />
     <img src="https://img.badgesize.io/https://unpkg.com/vant/lib/index.css?compression=gzip&style=flat-square&label=CSS%20gzip%20size" alt="CSS Gzip Size" />
diff --git a/README.zh-CN.md b/README.zh-CN.md
index c53dc6f02..16cdc8584 100644
--- a/README.zh-CN.md
+++ b/README.zh-CN.md
@@ -6,6 +6,7 @@
 <p align="center">
     <img src="https://img.shields.io/npm/v/vant.svg?style=flat" alt="npm version" />
     <img src="https://travis-ci.org/youzan/vant.svg?branch=master" alt="Build Status" />
+    <img src="https://img.shields.io/npm/dt/vant.svg" alt="downloads" />
     <img src="https://img.shields.io/npm/dm/vant.svg" alt="downloads" />
     <img src="https://img.badgesize.io/https://unpkg.com/vant/lib/vant.min.js?compression=gzip&style=flat-square&label=JS%20gzip%20size" alt="JS Gzip Size" />
     <img src="https://img.badgesize.io/https://unpkg.com/vant/lib/index.css?compression=gzip&style=flat-square&label=CSS%20gzip%20size" alt="CSS Gzip Size" />
diff --git a/docs/src/WapApp.vue b/docs/src/WapApp.vue
index cea7c4909..b033c4be4 100644
--- a/docs/src/WapApp.vue
+++ b/docs/src/WapApp.vue
@@ -1,10 +1,10 @@
 <template>
   <div>
     <van-nav-bar
-      v-show="title && showNav"
+      v-show="title"
       class="van-doc-nav-bar"
       :title="title"
-      left-arrow
+      :left-arrow="showNav"
       @click-left="onBack"
     >
       <a