{ "@metadata": { "authors": [ "Yfdyh000", "Liuxinyu970226" ] }, "textextracts-desc": "提供纯文本或有限的HTML页面内容提取", "apihelp-query+extracts-param-sentences": "返回的句子数量。", "apihelp-query+extracts-example-1": "获得175个字符的内容" }