可以试一下用promise来做：

const promixify = (api) => {

  return (options, …params) => {

    return new Promise((resolve, reject) => {

      api(Object.assign({}, options, { success: resolve, fail: reject }), …params)

    })

  }

}

const getImageInfo = promixify(wx.getImageInfo)

const images = [‘img1.jpg’, ‘img2.jpg’, ‘img3.jpg’]

Promise.all(

  images.map(img => getImageInfo({ src: img }))

).then((imageInfos) => {

  console.log(imageInfos)

})