wx.createSelectorQuery()调用之后真机没反应？
<canvas id="c1" type="2d" style="display: inline-block; width: 300px; height: 300px;background:red"></canvas> js调用wx.createSelectorQuery().selectAll('#c1').node(res => { console.log(res) }).exec() res不打印。工具正常打印， 真机没打印。基础库是2.8.1
