User-agent: Baiduspider
Disallow:
User-agent: YisouSpider
Disallow:
User-agent: Sogou
Disallow:
User-agent: 360Spider
Disallow:
User-agent: Bytespider
Disallow:
User-agent: Googlebot
Disallow:
User-agent: Bingbot
Disallow:

User-agent: *
Disallow: /