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```javascript
async function main () {
// 爬取第1页到第10页的视频BV号
for ( let i = 1 ; i <= 10 ; i ++ ) {
await getBv ( i );
}
console . log ( "BV列表长度:" , bvList . length );
// 将BV号写入本地文件
fs . writeFileSync ( 'bv.txt' , bvList . join ( '\n' ), 'utf-8' );
// 对于每个BV号，
bvList . forEach ( bv => {
getCid ( bv );
});
console . log ( "CID列表长度:" , cidList . length );
// 将CID号写入本地文件
fs . writeFileSync ( 'cid.txt' , cidList . join ( '\n' ), 'utf-8' );
// 对于每个
CID号 ， 爬取弹幕内容
cidList . forEach ( cid => {
getChat ( cid );
});
console . log ( "弹幕内容列表长度:" , chatList . length );
// 将弹幕内容写入本地文件
fs . writeFileSync ( 'chat.txt' , chatList . join ( '\n' ), 'utf-8' );
}
main ();
```
