分析情緒應用程式

這個基本的 Natural Language API 應用程式會對文字執行情緒分析。

深入探索

如需包含這個程式碼範例的詳細說明文件，請參閱下列內容：

程式碼範例

Python

如要瞭解如何安裝及使用 Natural Language 的用戶端程式庫，請參閱Natural Language 用戶端程式庫。 詳情請參閱 Natural Language Python API 參考說明文件。

如要向 Natural Language 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

"""Demonstrates how to make a simple call to the Natural Language API."""

import argparse

from google.cloud import language_v1



def print_result(annotations):
    score = annotations.document_sentiment.score
    magnitude = annotations.document_sentiment.magnitude

    for index, sentence in enumerate(annotations.sentences):
        sentence_sentiment = sentence.sentiment.score
        print(f"Sentence {index} has a sentiment score of {sentence_sentiment}")

    print(f"Overall Sentiment: score of {score} with magnitude of {magnitude}")
    return 0




def analyze(movie_review_filename):
    """Run a sentiment analysis request on text within a passed filename."""
    client = language_v1.LanguageServiceClient()

    with open(movie_review_filename) as review_file:
        # Instantiates a plain text document.
        content = review_file.read()

    document = language_v1.Document(
        content=content, type_=language_v1.Document.Type.PLAIN_TEXT
    )
    annotations = client.analyze_sentiment(request={"document": document})

    # Print the results
    print_result(annotations)




if __name__ == "__main__":
    parser = argparse.ArgumentParser(
        description=__doc__, formatter_class=argparse.RawDescriptionHelpFormatter
    )
    parser.add_argument(
        "movie_review_filename",
        help="The filename of the movie review you'd like to analyze.",
    )
    args = parser.parse_args()

    analyze(args.movie_review_filename)

後續步驟

如要搜尋及篩選其他 Google Cloud 產品的程式碼範例，請參閱Google Cloud 範例瀏覽器。