<block wx:for="{{tabs}}" wx:key="*this">
                    <view id="{{index}}" class="weui-navbar__item {{activeIndex == index ? 'weui-bar__item_on' : ''}}" bindtap="tabClick">
                        <view class="weui-navbar__title">{{item}}</view>
                    </view>
                </block>

tabclick 不好使！