2.11.3 开发工具版本1.03.2006090 开发预览都没问题就是真机调试 出错 导致页面加载不出来。审核过不去。体验版完全没问题。

<canvas canvas-id="11" type="2d" id ="myCanvas" style='width:{{canvasWidth}}px; height:{{canvasHeight}}px'  

bindtouchstart='touchStart' bindtouchmove='touchMove' bindtouchend='touchEnd' 

disable-scroll='true'

force-use-old-canvas="true"

></canvas>

wx.createSelectorQuery()

    .select('#myCanvas')

    .fields({

      node: true,

      size: true,

    })

    .exec(this.init.bind(this))

 init(res){ 

    const that = this

    const width = res[0].width

    const height = res[0].height

    const canvas =  res[0].node

    const ctx = canvas.getContext('2d')

    const dpr = wx.getSystemInfoSync().pixelRatio

    canvas.width = width * dpr

    canvas.height = height * dpr

    ctx.scale(dpr, dpr)

    const renderLoop = () => {

      this.render(canvas, ctx)

      canvas.requestAnimationFrame(renderLoop)

    }

    canvas.requestAnimationFrame(renderLoop)   

  },