fix: 默认头像

src/components/header/index.vue

@@ -15,7 +15,7 @@
                 </li>
                 <li><em></em></li>
                 <li v-if="user" class="uinfo" @click="showDrop = true">
-                    <img :src="user.head + '&x-oss-process=image/resize,m_fill,w_64,h_64/quality,q_70'" alt="" />
+                    <img :src="user.head.indexOf('/newHead.png') != -1 ? user.head : user.head + '&x-oss-process=image/resize,m_fill,w_64,h_64/quality,q_70'" alt="" />
                     <div class="menu">
                         <ul>
                             <li>