缩小图游比例

pages/map/index.wxml

@@ -1,7 +1,7 @@
 <!--pages/map/index.wxml-->
 <!-- <search bind:onload="search"></search> -->
 <title title="图游"></title>
-<map class="map" id="map" style="height:100%" wx:if="{{areas.length>0}}" longitude="{{areas[areaIndex]?areas[areaIndex].lon:longitude}}" latitude="{{areas[areaIndex]?areas[areaIndex].lat:latitude}}" show-location markers="{{list}}" bindmarkertap="onTapMarker" bindregionchange="changeRegion">
+<map class="map" id="map" style="height:100%" wx:if="{{areas.length>0}}" longitude="{{areas[areaIndex]?areas[areaIndex].lon:longitude}}" latitude="{{areas[areaIndex]?areas[areaIndex].lat:latitude}}" show-location markers="{{list}}" bindmarkertap="onTapMarker" bindregionchange="changeRegion" scale='13'>
 </map>
 <view style="height:{{topHeight}}px"></view>
 <picker mode="selector" value="{{areaIndex}}" range="{{areas}}" range-key="area_title" bindchange="changeArea">