def create_word_cloud(keyword_counts):
    """
    生成词云图。
    :param keyword_counts: 关键词及其出现次数的字典
    """
    wc = WordCloud(font_path='simhei.ttf', background_color='white', width=800, height=600)
    wc.generate_from_frequencies(keyword_counts)
    plt.imshow(wc, interpolation='bilinear')
    plt.axis("off")
    plt.title("Top Danmakus Related to AI Technology in 2024 Paris Olympics")
    plt.show()