Cloud Natural Language 文档
Cloud Natural Language API 为开发者提供自然语言理解技术，包括情感分析、实体分析、实体情感分析、内容分类和语法分析。此 API 是较大的 Cloud Machine Learning API 系列的一部分。
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如需了解 Natural Language 支持的语言，请参阅语言支持。
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最后更新时间 (UTC)：2025-08-11。
[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["很难理解","hardToUnderstand","thumb-down"],["信息或示例代码不正确","incorrectInformationOrSampleCode","thumb-down"],["没有我需要的信息/示例","missingTheInformationSamplesINeed","thumb-down"],["翻译问题","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC)：2025-08-11。"],[],[],null,["# Cloud Natural Language documentation\n====================================\n\n[Read product documentation](/natural-language/docs/basics)\nThe Cloud Natural Language API provides natural language understanding\ntechnologies to developers, including sentiment analysis, entity analysis,\nentity sentiment analysis, content classification, and syntax analysis.\nThis API is part of the larger Cloud Machine Learning API family.\n[Learn more](/natural-language/docs/basics)\n\n\nFor information on which languages are supported by the Natural Language,\nsee [Language Support](/natural-language/docs/languages).\n| **Note:** Need a customized solution? [AutoML Natural Language](/natural-language/automl/docs) enables you to create a custom machine learning model for classifying content.\n[Get started for free](https://console.cloud.google.com/freetrial) \n\n#### Start your proof of concept with $300 in free credit\n\n- Get access to Gemini 2.0 Flash Thinking\n- Free monthly usage of popular products, including AI APIs and BigQuery\n- No automatic charges, no commitment \n[View free product offers](/free/docs/free-cloud-features#free-tier) \n\n#### Keep exploring with 20+ always-free products\n\n\nAccess 20+ free products for common use cases, including AI APIs, VMs, data warehouses,\nand more.\n\nDocumentation resources\n-----------------------\n\nFind quickstarts and guides, review key references, and get help with common issues. \nformat_list_numbered\n\n### Guides\n\n-\n\n [Quickstart: Setup the Natural Language](/natural-language/docs/setup)\n\n-\n\n [Quickstart: Perform sentiment analysis by using the gcloud CLI](/natural-language/docs/sentiment-analysis-gcloud)\n\n-\n\n [Quickstart: Perform sentiment analysis by using client libraries](/natural-language/docs/sentiment-analysis-client-libraries)\n\n-\n\n [Analyzing Sentiment](/natural-language/docs/analyzing-sentiment)\n\n-\n\n [Analyzing Entities](/natural-language/docs/analyzing-entities)\n\n-\n\n [Classifying Content](/natural-language/docs/classifying-text)\n\n-\n\n [Analyzing Syntax](/natural-language/docs/analyzing-syntax)\n\n-\n\n [Analyzing Entity Sentiment](/natural-language/docs/analyzing-entity-sentiment)\n\nfind_in_page\n\n### Reference\n\n-\n\n [Language Support](/natural-language/docs/languages)\n\n-\n\n [Content Categories](/natural-language/docs/categories)\n\n-\n\n [Natural Language Client Libraries](/natural-language/docs/reference/libraries)\n\n-\n\n [REST API](/natural-language/docs/reference/rest)\n\n-\n\n [Service APIs Overview](/natural-language/docs/reference/service_apis_overview)\n\n-\n\n [RPC API](/natural-language/docs/reference/rpc)\n\n-\n\n [Locations](/natural-language/docs/locations)\n\n-\n\n [Apache Airflow / Cloud Composer operators](/natural-language/docs/integrations)\n\ninfo\n\n### Resources\n\n-\n\n [Pricing](/natural-language/pricing)\n\n-\n\n [Quotas and limits](/natural-language/quotas)\n\n-\n\n [Release notes](/natural-language/docs/release-notes)\n\n-\n\n [Billing questions](/natural-language/docs/billing-questions)\n\n-\n\n [Getting support](/natural-language/docs/getting-support)\n\nRelated videos\n--------------\n\n### Try Natural Language for yourself\n\nCreate an account to evaluate how our products perform in real-world scenarios. \nNew customers also get $300 in free credits to run, test, and deploy workloads. \n[Try Natural Language free](https://console.cloud.google.com/freetrial)"]]
