优化

components/tab/tab.wxml

@@ -1,5 +1,5 @@
 <!--components/tab/tab.wxml-->
-<view class="Tab">
+<scroll-view scroll-x class="Tab">
   <view wx:for="{{tabList}}" class="{{'tabItem ' + (type == item.type ? 'active' : '')}}" wx:key="type">
     <view class="item" bindtap="click" data-type="{{item.type}}" data-title="{{item.name}}"
       data-isUpdate="{{item.isUpdate}}"
@@ -8,4 +8,4 @@
       {{item.name}}
     </view>
   </view>
-</view>
+</scroll-view>

components/tab/tab.wxss

@@ -1,7 +1,5 @@
 /* components/tab/tab.wxss */
 .Tab{
-  overflow-y: hidden;
-  overflow-x: scroll;
   white-space: nowrap;
   font-size: 16px;
   font-weight: 400;

pages/home/home.wxml

@@ -3,7 +3,7 @@
   <view class="activity">
     <view class="actbtn">
       <picker bindchange="bindPickerChange" value="{{select}}" range="{{activityList}}">
-          <button style="color: #fff;width:100%;background-color: #1989fa" class="mini-btn" type="default" size="mini">{{activityList[select]}}</button>
+          <button style="color: #fff;width:90%;background-color: #1989fa;" class="mini-btn" type="default" size="mini">{{activityList[select]}}</button>
       </picker>
     </view>
     <view class="btnGrounp">

pages/home/home.wxss

@@ -16,17 +16,21 @@
   top: 100px;
 }
 
-.activity{
+.activity {
   width: 750rpx;
 }
-.activity .actbtn{
+
+.activity .actbtn {
   width: 160rpx;
   vertical-align: middle;
   padding: 14px 0;
   display: inline-block;
+  vertical-align: middle;
 }
-.activity .btnGrounp{
+
+.activity .btnGrounp {
   width: 590rpx;
   vertical-align: middle;
   display: inline-block;
+  vertical-align: middle;
 }