小程序hidden控制echarts显示隐藏

在后台写了tapindex1控制hidden 但是只有第一个图表可以显示，后面的图表看调试器的wxml是有大小的，但是不显示

            <view class="container" hidden="{{tapindex1!=0}}">
                <ec-canvas id="mychart-dom-line1" canvas-id="mychart-line" ec="{{ ec }}"></ec-canvas>
            </view>
            <view class="container" hidden="{{tapindex1!=1}}">
                <ec-canvas id="mychart-dom-line2" canvas-id="mychart-line" ec="{{ ec2 }}"></ec-canvas>
            </view>
            <view class="container" hidden="{{tapindex1!=2}}">
                <ec-canvas id="mychart-dom-line3" canvas-id="mychart-line" ec="{{ ec3 }}"></ec-canvas>
            </view>
            <view class="container" hidden="{{tapindex1!=3}}">
                <ec-canvas id="mychart-dom-line4" canvas-id="mychart-line" ec="{{ ec4 }}"></ec-canvas>
            </view>
            <view class="container" hidden="{{tapindex1!=4}}">
                <ec-canvas id="mychart-dom-line5" canvas-id="mychart-line" ec="{{ ec5 }}"></ec-canvas>
            </view>
            <view class="container" hidden="{{tapindex1!=5}}">
            <ec-canvas id="mychart-dom-line6" canvas-id="mychart-line" ec="{{ ec6 }}"></ec-canvas>
            </view>
            <view class="container" hidden="{{tapindex1!=6}}">
                <ec-canvas id="mychart-dom-line7" canvas-id="mychart-line" ec="{{ ec7 }}"></ec-canvas>
            </view>

是不是这个原因