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+```javascript
+const axios = require('axios');
+const cheerio = require('cheerio');
+const fs = require('fs');
+const { JSDOM } = require('jsdom');
+
+// 初始化空数组，用于存储BV号、CID号和弹幕内容
+let bvList = [];
+let cidList = [];
+let chatList = [];
+```
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