https://developers.weixin.qq.com/miniprogram/dev/api/media/video/wx.chooseMedia.html

示例代码有错误

success(res) {
    console.log(res.tempFiles.tempFilePath)
    console.log(res.tempFiles.size)
  }
这个应该是
console.log(res.tempFiles[0].tempFilePath)
console.log(res.tempFiles[0].size)