参考的这个 

里边的白名单模式，整个规则下载下来 大概20多万条，电脑端还好，手机端感觉有点吃力。 
是不是理论上 可以 只保留部分 
rules:
  - RULE-SET,applications,DIRECT
  - DOMAIN,clash.razord.top,DIRECT
  - DOMAIN,yacd.haishan.me,DIRECT
  - RULE-SET,private,DIRECT
  - RULE-SET,reject,REJECT
  - RULE-SET,icloud,DIRECT
  - RULE-SET,apple,DIRECT
  - RULE-SET,google,PROXY
  - RULE-SET,proxy,PROXY
  - RULE-SET,direct,DIRECT
  - RULE-SET,lancidr,DIRECT
  - RULE...