<view class='choice_city'wx:for="{{nearby_address}}" wx:for-item="item" wx:key="item">
        <view>
                <text>{{item.title}}</text>
                <text class='address'>{{item.address}}</text>
        </view>
</view> 

var arr = res.data;
       for(var i = 0;i<arr.length;i++){
             var item = arr[i];
             item.title=item.title;
             item.address=item.address;
       }

that.setData({
      nearby_address:arr,
})