windows下修改hosts文件，添加固定的DNS解析
打开系统目录：c:/windows/system32/drivers/etc找到hosts文件，打开hosts文件并在最后面添加以下记录：
203.208.46.29—-203.208.46.90
这段ip是Google最新的北京服务器ip ，Google 其他项目都可以用这些ip
203.208.46.29 spreadsheets.google.com
203.208.46.29 maps-api-ssl.google.com
203.208.46.29 translate.google.com
203.208.46.29 0-focus-opensocial.googleusercontent.com
203.208.46.29 images6-focus-opensocial.googleusercontent.com
203.208.46.29 images5-focus-opensocial.googleusercontent.com
203.208.46.29 images4-focus-opensocial.googleusercontent.com
203.208.46.29 images3-focus-opensocial.googleusercontent.com
203.208.46.29 images2-focus-opensocial.googleusercontent.com
203.208.46.29 images1-focus-opensocial.googleusercontent.com
203.208.46.29 lh6.googleusercontent.com
203.208.46.29 lh5.googleusercontent.com
203.208.46.29 lh3.googleusercontent.com
203.208.46.29 lh2.googleusercontent.com
203.208.46.29 lh1.googleusercontent.com
203.208.46.29 lh4.googleusercontent.com
203.208.46.29 webcache.googleusercontent.com
203.208.46.29 mail.google.com
203.208.46.29 www.google.com.hk
203.208.46.29 www.google.com
203.208.46.29 picasaweb.google.com
203.208.46.29 labs.google.com
203.208.46.29 www.googlelabs.com
203.208.46.29 docs.google.com
203.208.46.29 plus.google.com
203.208.46.29 profiles.google.com
203.208.46.29 services.google.com
203.208.46.29 clients4.google.com
203.208.46.29 clients2.google.com
203.208.46.29 chrome.google.com
203.208.46.29 tools.google.com
203.208.46.29 talkgadget.google.com
203.208.46.29 ssl.gstatic.com
203.208.46.29 clients2.googleusercontent.com
203.208.46.29 clients1.googleusercontent.com
203.208.46.29 clients3.googleusercontent.com
203.208.46.29 clients4.googleusercontent.com
203.208.46.30 www.google.com
203.208.46.30 http://www.google.com.hk
203.208.46.30 picadaweb.google.com
203.208.46.30 s6.googleusercontent.com
203.208.46.30 s5.googleusercontent.com
203.208.46.30 s4.googleusercontent.com
203.208.46.30 s3.googleusercontent.com
203.208.46.30 s2.googleusercontent.com
203.208.46.30 s1.googleusercontent.com
203.208.46.30 plus.google.com
203.208.46.30 talkgadget.google.com
203.208.46.30 ditu.google.com
203.208.46.30 maps-api-ssl.google.com
203.208.46.30 mail.google.com
203.208.46.30 docs.google.com
203.208.46.30 pop.gmail.com
203.208.46.30 scholar.l.google.com
203.208.46.30 news.google.com
203.208.46.30 video.google.com
203.208.46.29 translate.google.com
203.208.46.30 profiles.google.com
