User-agent: 
Disallow: /
User-agent: BaiDuSpider
Disallow: /
User-agent: Baiduspider+(+http://help.baidu.jp/system/05.html)  
Disallow: /
User-agent: Baiduspider+(+http://www.baidu.com/search/spider.htm)
Disallow: /
User-agent: Baiduspider+(+http://www.baidu.com/search/spider_jp.html)
Disallow: /
User-agent: Mozilla/3.0 (compatible)
Disallow: /
User-agent: Mozilla/4.0 (compatible; Advanced Email Extractor v2.xx)
Disallow: /
User-agent: Mozilla/4.0 (compatible; NaverBot/1.0; http://help.naver.com/delete_main.asp)
Disallow: /
User-agent: Mozilla/5.0 (compatible; Yahoo! Slurp China; http://misc.yahoo.com.cn/help.html)
Disallow: /
User-agent: Sogou Orion spider/3.0(+http://www.sogou.com/docs/help/webmasters.htm#07)
Disallow: /
User-agent: Sogou web spider/3.0(+http://www.sogou.com/docs/help/webmasters.htm#07)
Disallow: /
User-agent: YodaoBot/1.0(http://www.yodao.com/help/webmaster/spider/;)
Disallow: /
User-agent: sogou develop spider
Disallow: /
User-agent: sogou spider
Disallow: /
User-agent: sohu agent
Disallow: /
User-agent: *
Crawl-delay: 1.00