链接：https://developers.weixin.qq.com/miniprogram/dev/api-backend/open-api/ocr/ocr.bankcard.html https://developers.weixin.qq.com/miniprogram/dev/api-backend/open-api/ocr/ocr.idcard.html https://developers.weixin.qq.com/miniprogram/dev/api-backend/open-api/ocr/ocr.drivingLicense.html
