<picker-view indicator-style="height: 50px;" style="width: 100%; height: 200px;"  bindchange="bindChange">       <picker-view-column>         <view>1</view>       </picker-view-column>     </picker-view>

刚开始地图还是好好的 自己就莫名其妙的报了这个错误 Cannot read property 'getExtension' of null