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接口描述

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文档抽取支持自定义配置字段，无需训练即可抽取文档字段信息，精准定位字段值，适用于合同、票据、订单等各类文档场景。如希望快速可视化体验效果，可登录智能文档分析平台，一键上传文档，在线测试；在线工具和API服务的额度共享互通。

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文档抽取API服务为异步接口，需要先调用提交请求接口获取taskId，然后调用获取结果接口进行结果轮询，建议提交请求后30秒开始轮询。提交请求接口QPS为2，获取结果接口QPS为10。

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在线调试

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您可以在 示例代码中心 中调试该接口，可进行签名验证、查看在线调用的请求内容和返回结果、示例代码的自动生成。

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提交请求接口

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请求说明

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请求示例

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HTTP 方法：POST

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请求URL： https://aip.baidubce.com/rest/2.0/brain/online/v1/extract/task

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URL参数：

\n\n\n\n\n\n\n\n\n\n\n\n\n\n
参数值
access_token通过API Key和Secret Key获取的access_token,参考“Access Token获取”
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Header如下：

\n\n\n\n\n\n\n\n\n\n\n\n\n\n
参数值
Content-Typeapplication/x-www-form-urlencoded
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Body中放置请求参数，参数详情如下：

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请求参数

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
参数是否必选类型说明
file和 fileURLs 二选一string文件的 base64编码，需去掉编码头，例如图片类型需去掉编码头（data:image/jpeg;base64,）
支持的文件类型：
-图片：jpg/jpeg/png/bmp/tif/tiff
-文档：doc/docx/pdf/xlsx/xls/ofd
支持的文件大小：仅支持上传一篇文件，文件大小不超过50M。图像最短边至少15px，最长边最大4096px
优先级：file>fileURLs，当file字段存在时，fileURLs字段失效
fileNamefile不为空时必传string文档名称，当传入file参数时，该字段必传，例如test.docx
fileURLs和file二选一string文件数据URL，URL长度不超过1024字节，支持单个URL传入，仅支持bos公网访问。其余文件准入标准与file一致。
优先级：file>fileURLs，当file字段存在时，fileURLs字段失效
manifestVersionId和 manifest 二选一string用户在智能文档分析平台配置的清单版本id
优先级：manifestVersionId>manifest，当manifestVersionId字段存在时，manifest字段失效
manifest和 manifestVersionId 二选一string抽取字段配置，每个抽取字段包含key、parentKey、description三个参数：
• key为抽取字段名称，是必传参数；
• parentKey为抽取字段的主字段，是非必传参数，不存在时传root或为空；
• description为抽取字段的补充说明，用于辅助大模型提升抽取效果，是非必传参数，不存在时为空。
以上三个参数支持中英文、数字、下划线、中划线、斜杠、冒号和括号，其中中横线、下划线、斜杠和冒号不能作为开头和结尾。key和parentKey字符数不超过30，description字符数不超过100。
key的数量不能超过100。
优先级：manifestVersionId>manifest，当manifestVersionId字段存在时，manifest字段失效
removeDuplicates否bool是否开启字段值去重。开启后，对单个字段内重复抽取的相同值进行去重，并默认输出首个值的位置信息
pageRange否string是否开启指定页抽取。开启后，可输入指定页码进行抽取，扣费额度也依据指定页码范围
输入格式：页码从1开始，使用英文逗号分隔单个页码，用连字符表示页码范围。例如，输入1,5-10,15，表示抽取第1页、第5至10页和第15页，共计扣减8页的额度
注意： 鉴于流式文档的特性，dox/docx/wps/xls/xlsx文件的页码解析不固定，建议使用pdf/ofd和图片等版式文档以确保页码解析的准确性
extractSeal否bool是否开启印章抽取。开启后，将抽取文档内的印章信息，但会相应增加任务耗时
eraseWatermark否bool是否开启水印去除。开启后，将去除文档内的水印、底纹、印章等视觉干扰，优化模型抽取效果，但会相应增加任务耗时
docCorrect否bool是否开启图像矫正。开启后，将矫正倾斜图片，但会相应增加任务耗时
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manifest参数示例：

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\n JSON\n \n
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1[{\n2\t\"parentKey\": \"\",\n3    \"key\": \"生效范围\",\n4\t\"description\": \"指国家范围而非省份、城市或更细分的范围\"\n5}, {\n6\t\"parentKey\": \"商品信息\",\n7    \"key\": \"商品编号\",\n8\t\"description\": \"\"\n9}, {\n10\t\"parentKey\": \"商品信息\",\n11    \"key\": \"商品价格\",\n12\t\"description\": \"\"\n13}]
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请求代码示例

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提示一：使用示例代码前，请记得替换其中的示例Token、文档地址和清单。

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提示二：目前仅提供Python语言，如需其他语言示例可参考 示例代码中心 。

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\n Python\n \n
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1import base64\n2import requests\n3import os\n4'''\n5文档抽取-提交请求\n6'''\n7file_path = '[本地文件]'\n8manifest_version_id = '[清单id]'\n9request_host = \"https://aip.baidubce.com/rest/2.0/brain/online/v1/extract/task\"\n10encoded_string = ''\n11with open(file_path, 'rb') as file:\n12    file_base64 = base64.b64encode(file.read()).decode('utf-8')\n13# 优先级：manifestVersionId>manifest，当manifestVersionId字段存在时，manifest字段失效\n14data = {\n15    'file': file_base64,\n16    'fileName': os.path.basename(file_path),\n17    # 'manifestVersionId': manifest_version_id,\n18    'manifest': \"\"\"\n19                 [{\"key\":\"单位\", \"description\":\"工作单位一般出现在正文内容里前面带着单位2字\", \"parentKey\":\"root\"},\n20                 {\"key\":\"工作票号\", \"description\":\"工作票号不是编号一般由纯数字组成\", \"parentKey\":\"root\"}\n21                    ]\n22                \"\"\"\n23}\n24access_token = '[调用鉴权接口获取的token]'\n25request_url = request_host + \"?access_token=\" + access_token\n26headers = {'Content-Type': 'application/x-www-form-urlencoded'}\n27response = requests.post(request_url, headers=headers, data=data)\n28if response:\n29    print(response.json())
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返回说明

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返回参数

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
字段类型说明
log_idstring唯一的 log_id，用于问题定位
error_codeint错误码
error_msgstring错误描述信息
resultdict返回的结果列表
+ taskIdstring该请求生成的taskId，后续使用该taskId获取抽取结果
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返回示例\n成功返回示例：

\n\n
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\n JSON\n \n
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1{\n2    \"error_code\": 0,\n3    \"error_msg\": \"\",\n4    \"log_id\": \"088d6639-bafd-4007-be27-dcddbb651322\",\n5    \"result\": {\n6        \"taskId\": \"task-6tb7mgduz9rqaxzi\"\n7    }\n8}
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失败返回示例（详细的错误码说明见API文档-错误码）：

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\n JSON\n \n
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1{\n2    \"error_code\": 283016,\n3    \"error_msg\": \"parameters value error:清单字段名称格式错误\",\n4    \"log_id\": \"debb76a0-8015-4647-be19-f76c5a0f2892\",\n5    \"result\": None\n6}
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获取结果接口

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请求说明

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请求示例

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HTTP 方法：POST\n请求URL：https://aip.baidubce.com/rest/2.0/brain/online/v1/extract/query_task

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URL参数：

\n\n\n\n\n\n\n\n\n\n\n\n\n\n
参数值
access_token通过API Key和Secret Key获取的access_token,参考“Access Token获取”
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Header如下：

\n\n\n\n\n\n\n\n\n\n\n\n\n\n
参数值
Content-Typeapplication/x-www-form-urlencoded
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Body中放置请求参数，参数详情如下：

\n

请求参数

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
参数是否必选类型说明
taskId是string发送提交请求时返回的taskId
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请求代码示例

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提示一：使用示例代码前，请记得替换其中的示例Token、taskId。

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提示二：目前仅提供Python语言，如需其他语言示例可参考 示例代码中心 。

\n\n
\n
\n
\n Python\n \n
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\n 
1import requests\n2'''\n3文档抽取-获取结果\n4'''\n5\n6request_host = \"https://aip.baidubce.com/rest/2.0/brain/online/v1/extract/query_task\"\n7data = {\n8    \"taskId\": \"[调用提交请求接口获取的task_id]\"\n9}\n10access_token = \"[调用鉴权接口获取的token]\"\n11request_url = request_host + \"?access_token=\" + access_token\n12\n13headers = {'Content-Type': 'application/x-www-form-urlencoded'}\n14response = requests.post(request_url, data=data, headers=headers)\n15if response:\n16\tprint(response.json())
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返回说明

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返回参数

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
字段类型说明
log_iduint64唯一的log id，用于问题定位
error_codeint错误码
error_msgstring错误描述信息
resultdict返回的结果列表
+ taskIdstring任务ID
+ statusstring任务状态，Pending：排队中；Running：运行中；Success：成功；Failed：失败
+ reasonstring任务失败描述信息
+ createdAtstring任务创建时间
+ startedAtstring任务开始时间
+ finishedAtstring任务结束时间
+ durationstring任务执行时长
+ extendInfosdict高级选项配置
++ removeDuplicatesbool是否开启字段值去重
++ extractSealbool是否开启印章抽取
++ eraseWatermarkbool是否开启水印去处
++ docCorrectbool是否开启图像矫正
++ pageRangebool是否开启指定页抽取
+ extractLabelInfo[]dict清单字段配置信息，status为Success时返回
++ keystring抽取字段名称
++ parentKeystring抽取字段的主字段
++ descriptionstring抽取字段的补充说明
+ extractResult[]dict文档抽取结果列表
++ docIdstring文档ID
++ docNamestring文档名称
++ pdfUrlstring源文件转换为PDF后的文档bos下载链接，status为Success时返回，有效期为30分钟
++ datadict抽取字段和结果信息
+++singleKeydict单个字段抽取结果列表
++++{字段名称}[]dict单个字段的字段名称
+++++wordstring单个字段的抽取结果
+++++valuePositions[]dict抽取内容位置信息
++++++box[4][2]int抽取结果的四角点坐标框，[[x1,y1],[x2,y2],[,x3,y3],[x4,y4]]，分别对应坐标框四个点的坐标
++++++cbox[4]int抽取结果的坐标框，「x, y, w, h」(x, y)为坐标点坐标，w为box宽度，h为box高度（以页面坐标为原点）
++++++pageNoint页号
+++comboKeydict组合字段抽取结果列表
++++{组合名称}[]dict组合字段的组合名称
+++++{字段名称}dict组合字段的字段名称
++++++valuePositions[]dict抽取内容位置信息
+++++++box[4][2]int四角点坐标框，[[x1,y1],[x2,y2],[,x3,y3],[x4,y4]]，分别对应坐标框四个点的坐标
+++++++cbox[4]int坐标框，「x, y, w, h」(x, y)为坐标点坐标，w为box宽度，h为box高度（以页面坐标为原点）
+++++++pageNoint页号
+++seal[]dict印章字段抽取结果
++++majorstring印章主字段识别内容
++++minorstring印章子字段识别内容
++++valuePositions[]dict抽取内容位置信息
+++++box[4][2]int四角点坐标框，[[x1,y1],[x2,y2],[,x3,y3],[x4,y4]]，分别对应坐标框四个点的坐标
+++++cbox[4]int坐标框，「x, y, w, h」(x, y)为坐标点坐标，w为box宽度，h为box高度（以页面坐标为原点）
+++++pageNoint页号
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返回示例

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成功返回示例：

\n\n
\n
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\n JSON\n \n
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\n 
1{\n2\t\"error_code\": 0,\n3\t\"error_msg\": \"\",\n4\t\"log_id\": \"8ca3c6cf-f9d3-485c-96ee-dedcd9fb9a54\",\n5\t\"result\": {\n6\t\t\"taskId\": \"task-vrs7269yugakeg3g\",\n7\t\t\"status\": \"Success\",\n8\t\t\"createdAt\": \"2024-11-13 02:49:58 +0000 UTC\",\n9\t\t\"startedAt\": \"2024-11-13 02:50:01 +0000 UTC\",\n10\t\t\"finishedAt\": \"2024-11-13 02:50:38 +0000 UTC\",\n11\t\t\"duration\": 37,\n12\t\t\"reason\": \"\",\n13\t\t\"extractLabelInfo\": [{\n14\t\t\t\"key\": \"案号\",\n15\t\t\t\"parentKey\": \"root\",\n16\t\t\t\"description\": \"\"\n17\t\t}, {\n18\t\t\t\"key\": \"保全金额\",\n19\t\t\t\"parentKey\": \"root\",\n20\t\t\t\"description\": \"\"\n21\t\t}, {\n22\t\t\t\"key\": \"申请人地址\",\n23\t\t\t\"parentKey\": \"申请人\",\n24\t\t\t\"description\": \"\"\n25\t\t}, {\n26\t\t\t\"key\": \"申请人联系方式\",\n27\t\t\t\"parentKey\": \"申请人\",\n28\t\t\t\"description\": \"\"\n29\t\t}, {\n30\t\t\t\"key\": \"被申请人\",\n31\t\t\t\"parentKey\": \"root\",\n32\t\t\t\"description\": \"\"\n33\t\t}, {\n34\t\t\t\"key\": \"被申请人联系方式\",\n35\t\t\t\"parentKey\": \"被申请人\",\n36\t\t\t\"description\": \"\"\n37\t\t}, {\n38\t\t\t\"key\": \"申请人\",\n39\t\t\t\"parentKey\": \"root\",\n40\t\t\t\"description\": \"\"\n41\t\t}],\n42\t\t\"extractResult\": [{\n43\t\t\t\"docId\": \"doc-pzvd73huishsjp29\",\n44\t\t\t\"docName\": \"跨页楼地址.pdf\",\n45\t\t\t\"pdfUrl\": \"https://model-extract-dev-bj.bj.bcebos.com/paas_extract_doc/50042791/doc-pzvd73huishsjp29/doc-pzvd73huishsjp29.pdf?authorization=bce-auth-v1%2FALTAK7IDj758EUbA1igu04rHAh%2F2024-11-13T02%3A50%3A39Z%2F1800%2Fhost%2F3b892fe167f095a5cc63b82b3d69cc9c72d7ee0ae65fde511d1c2a719456e7d8\",\n46\t\t\t\"data\": {\n47\t\t\t\t\"singleKey\": {\n48\t\t\t\t\t\"保全金额\": [{\n49\t\t\t\t\t\t\"valuePositions\": [{\n50\t\t\t\t\t\t\t\"box\": [\n51\t\t\t\t\t\t\t\t[128, 423],\n52\t\t\t\t\t\t\t\t[186, 423],\n53\t\t\t\t\t\t\t\t[186, 442],\n54\t\t\t\t\t\t\t\t[128, 442]\n55\t\t\t\t\t\t\t],\n56\t\t\t\t\t\t\t\"cbox\": [128, 423, 58, 19],\n57\t\t\t\t\t\t\t\"pageNo\": 4\n58\t\t\t\t\t\t}, {\n59\t\t\t\t\t\t\t\"box\": [\n60\t\t\t\t\t\t\t\t[390, 238],\n61\t\t\t\t\t\t\t\t[446, 238],\n62\t\t\t\t\t\t\t\t[446, 256],\n63\t\t\t\t\t\t\t\t[390, 256]\n64\t\t\t\t\t\t\t],\n65\t\t\t\t\t\t\t\"cbox\": [390, 238, 56, 18],\n66\t\t\t\t\t\t\t\"pageNo\": 4\n67\t\t\t\t\t\t}],\n68\t\t\t\t\t\t\"word\": \"45000元\"\n69\t\t\t\t\t}]\n70\t\t\t\t},\n71\t\t\t\t\"comboKey\": {\n72\t\t\t\t\t\"申请人\": [{\n73\t\t\t\t\t\t\"申请人地址\": {\n74\t\t\t\t\t\t\t\"valuePositions\": [{\n75\t\t\t\t\t\t\t\t\"box\": [\n76\t\t\t\t\t\t\t\t\t[378, 107],\n77\t\t\t\t\t\t\t\t\t[501, 107],\n78\t\t\t\t\t\t\t\t\t[501, 126],\n79\t\t\t\t\t\t\t\t\t[378, 126]\n80\t\t\t\t\t\t\t\t],\n81\t\t\t\t\t\t\t\t\"cbox\": [378, 107, 123, 19],\n82\t\t\t\t\t\t\t\t\"pageNo\": 1\n83\t\t\t\t\t\t\t}, {\n84\t\t\t\t\t\t\t\t\"box\": [\n85\t\t\t\t\t\t\t\t\t[73, 140],\n86\t\t\t\t\t\t\t\t\t[189, 140],\n87\t\t\t\t\t\t\t\t\t[189, 158],\n88\t\t\t\t\t\t\t\t\t[73, 158]\n89\t\t\t\t\t\t\t\t],\n90\t\t\t\t\t\t\t\t\"cbox\": [73, 140, 116, 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\n
\n
\n
\n \n

失败返回示例（详细的错误码说明见API文档-错误码）：

\n\n
\n
\n
\n JSON\n \n
\n
\n 
1{\n2    \"error_code\": 0,\n3    \"error_msg\": \"\",\n4    \"log_id\": \"7ea4d878-ed81-49de-88cc-5f910c6b8d1b\",\n5    \"result\": {\n6        \"taskId\": \"task-utbgdcp6hqx96d3b\",\n7        \"status\": \"Failed\",\n8        \"createdAt\": \"2024-07-29 07:09:41 +0000 UTC\",\n9        \"startedAt\": \"\",\n10        \"finishedAt\": \"\",\n11        \"duration\": 0,\n12        \"reason\": \"no valid doc\",\n13        \"extractResult\": [\n14            {\n15                \"docId\": \"doc-g34h4tsyv7zpsz05\",\n16                \"docName\": \"4b252fcf49f9a7a7042e63e6b6fefbcc1000007.png\",\n17                \"data\": {}\n18            }\n19        ]\n20    }\n21}
\n
\n
\n
\n \n

前端SDK渲染

\n

辅助用户在网页中便捷地调用文档比对服务，实现与当前智能文档分析平台-文档抽取在线工具一致的前端渲染和交互界面。

\n

使用说明

\n

示例URL： https://textmind-sdk.bce.baidu.com/textmind/sdk/textExtract/{taskId}?access_token={access_token}

\n

URL参数：

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
参数值
access_token通过API Key和Secret Key获取的access_token,参考“Access Token获取”
taskId发送提交请求时返回的taskId
\n

iframe引入方式

\n

提示一：使用示例代码前，请记得替换其中的示例Token、taskId。

\n\n
\n
\n
\n Plain Text\n \n
\n
\n 
1<iframe\n2    src="https://textmind-sdk.bce.baidu.com/textmind/sdk/textExtract/{taskId}?access_token={access_token}"\n3/>
\n
\n
\n
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