组件： canvas type="2d" class="canvas" API 使用如下： const query = wx.createSelectorQuery() wx.getImageInfo({ src:"https://xxx.jpg", success: function(picRes) { query.select('.canvas')   .fields({ node: true, size: true })   .exec((res) => { var canvas = res[0].node var context = canvas.getContext('2d') context.drawImage(picRes.path, 100, 100, 100, 100) })   } ) } }) 报错如下图 望解答 [图片]