var canvas,ctx;
const query = wx.createSelectorQuery()
        query.select('#tutorial')
        .fields({ node: true, size: true })
        .exec((res) => {
            canvas = res[0].node
            ctx = Effect.canvas.getContext('2d')
        })
const imageData = ctx.getImageData(0,0,canvas.width,canvas.height)
console.log("imageData.data instanceof",imageData.data instanceof Uint8Array,imageData.data instanceof Uint8ClampedArray)

手机端，开发工具都是（右侧）是正常的输出

pc上调试输出是左侧，都是false