// 把本地路径的图片转成 base64
export function pathToBase64(path) {
  return new Promise((resolve, reject) => {
    uni.getFileSystemManager().readFile({
      filePath: path,
      encoding: 'base64',
      success: (res) => {
        resolve(`data:image/png;base64,${res.data}`)
      },
      fail: (err) => reject(err)
    })
  })
}