python调用腾讯云接口，实现财务发票混贴模式下，批量识别并转存excel表格的功能

一、腾讯云文字识别OCR接口：通用票据识别（高级版），识别效果图（转载于腾讯云官网）：

二、准备工作

1、安装python，本文用PyCharm演示代码。

2、注册腾讯云（需要实名认证），获取API访问密匙：SecretId和SecretKey：

3、申请腾讯云免费使用额度，每月可免费识别1000张混贴财务发票：

4、阅读api接口参数说明文档：

5、准备文件夹用于存放待识别的混贴发票

三、python代码调试

1、以下代码用于识别发票大类type为3的增值税发票，发票子类型包括增值税纸质专票、增值税纸质普票、增值税电子专票、增值税电子普票、区块链电子发票、增值税电子普通发票(通行费)：

import json
import base64
import os
import pandas
from tencentcloud.common import credential
from tencentcloud.common.profile.client_profile import ClientProfile
from tencentcloud.common.profile.http_profile import HttpProfile
from tencentcloud.common.exception.tencent_cloud_sdk_exception import TencentCloudSDKException
from tencentcloud.ocr.v20181119 import ocr_client, models

PNG_path = r'C:\Users\Administrator\Desktop\invoices'  # 文件夹路径
list01 = os.listdir(PNG_path)

cred = credential.Credential("SecretId", "SecretKey")
httpProfile = HttpProfile()
httpProfile.endpoint = "ocr.tencentcloudapi.com"
clientProfile = ClientProfile()
clientProfile.httpProfile = httpProfile
client = ocr_client.OcrClient(cred, "ap-guangzhou", clientProfile)
req = models.RecognizeGeneralInvoiceRequest()

SingleInvoiceInfos = []
SingleInvoiceInfos2 = []
newary = []

for ids in list01:
    print(ids)
    try:
        with open(os.path.join(PNG_path, ids), 'rb') as fp:
            file_content = fp.read()
            image_base64 = base64.b64encode(file_content)
        params = {
            "ImageBase64": str(image_base64, encoding="utf-8"),
        }
        req.from_json_string(json.dumps(params))
        resp = client.RecognizeGeneralInvoice(req)

        result1 = json.loads(resp.to_json_string())
        # print(result1)

        for item in result1['MixedInvoiceItems']:
            if item['Type'] == 3:
                VatInvoiceName = item['SubType']
                # print(item['SingleInvoiceInfos'][VatInvoiceName])
                # SingleInvoiceInfos.append(item['SingleInvoiceInfos'])
                # print(item['SingleInvoiceInfos'])
                newary.append({'发票文件名': ids,
                               '发票类别-腾讯云':VatInvoiceName,
                               '发票种类': item['SingleInvoiceInfos'][VatInvoiceName]['Title'],
                               '发票代码': item['SingleInvoiceInfos'][VatInvoiceName]['Code'],
                               '发票号码': item['SingleInvoiceInfos'][VatInvoiceName]['Number'],
                               '开票日期': item['SingleInvoiceInfos'][VatInvoiceName]['Date'],
                               '校验码': item['SingleInvoiceInfos'][VatInvoiceName]['CheckCode'],
                               '合计金额': item['SingleInvoiceInfos'][VatInvoiceName]['PretaxAmount'],
                               '合计税额': item['SingleInvoiceInfos'][VatInvoiceName]['Tax'],
                               '价税合计（小写）': item['SingleInvoiceInfos'][VatInvoiceName]['Total'],
                               '价税合计（大写）': item['SingleInvoiceInfos'][VatInvoiceName]['TotalCn'],
                               '购买方名称': item['SingleInvoiceInfos'][VatInvoiceName]['Buyer'],
                               '购买方纳税人识别号': item['SingleInvoiceInfos'][VatInvoiceName]['BuyerTaxID'],
                               '购买方地址及电话': item['SingleInvoiceInfos'][VatInvoiceName]['BuyerAddrTel'],
                               '购买方银行及账户': item['SingleInvoiceInfos'][VatInvoiceName]['BuyerBankAccount'],
                               '销售方名称': item['SingleInvoiceInfos'][VatInvoiceName]['Seller'],
                               '销售方纳税人识别号': item['SingleInvoiceInfos'][VatInvoiceName]['SellerTaxID'],
                               '销售方地址及电话': item['SingleInvoiceInfos'][VatInvoiceName]['SellerAddrTel'],
                               '销售方银行及账户': item['SingleInvoiceInfos'][VatInvoiceName]['SellerBankAccount'],
                               '收款人': item['SingleInvoiceInfos'][VatInvoiceName]['Receiptor'],
                               '复核人': item['SingleInvoiceInfos'][VatInvoiceName]['Reviewer'],
                               '开票人': item['SingleInvoiceInfos'][VatInvoiceName]['Issuer'],
                               '备注': item['SingleInvoiceInfos'][VatInvoiceName]['Remark']})

    except TencentCloudSDKException as err:
        print(err)

print(newary)

newsdf = pandas.DataFrame(newary,
                          columns=['发票文件名', '发票类别-腾讯云', '发票种类', '发票代码', '发票号码', '开票日期', '校验码', '合计金额', '合计税额', '价税合计（小写）', '价税合计（大写）', '购买方名称',
                                   '购买方纳税人识别号', '购买方地址及电话', '购买方银行及账户', '销售方名称', '销售方纳税人识别号', '销售方地址及电话', '销售方银行及账户',
                                   '收款人', '复核人', '开票人', '备注'])
newsdf.to_excel('增值税发票信息统计' + '-' + '腾讯云API接口-发票与其他单据混贴' + '.xlsx')

2、发票识别数据转存excel后，最终结果如下图：