代理下载android sdk

点击桌面左下角开始菜单中的搜索，把以下路径，复制到搜索窗口中，c:\windows\system32\drivers\etc，点击立即搜索 ，就找到hosts文件，其实是一个纯文本的文件，1、用记事本打开2、将如下信息添加至最后3、保存关闭Host 

附：

下边贴上使用Google各种服务在修改hosts文件时需要添加的内容。
#Hosts文件开始，这句不需要复制
#Google Service
#Chrome 网上应用
203.208.46.146 chrome.google.com
203.208.46.146 clients0.google.com
203.208.46.146 clients1.google.com
203.208.46.146 clients2.google.com
203.208.46.146 clients3.google.com
203.208.46.146 clients4.google.com
203.208.46.146 www.googleusercontent.com
203.208.46.146 lh0.googleusercontent.com
203.208.46.146 lh1.googleusercontent.com
203.208.46.146 lh2.googleusercontent.com
203.208.46.146 lh3.googleusercontent.com
203.208.46.146 lh4.googleusercontent.com
203.208.46.146 lh5.googleusercontent.com
203.208.46.146 lh6.googleusercontent.com
203.208.46.146 clients1.googleusercontent.com
203.208.46.146 clients2.googleusercontent.com

#网页快照
203.208.46.146 webcache.googleusercontent.com

#Google SSL
203.208.46.146 encrypted.google.com
203.208.46.146 encrypted.google.com.hk

#Google Docs
203.208.46.146 docs.google.com
203.208.46.146 docs0.google.com
203.208.46.146 docs1.google.com
203.208.46.146 docs2.google.com
203.208.46.146 docs3.google.com
203.208.46.146 spreadsheets.google.com
203.208.46.146 spreadsheets0.google.com
203.208.46.146 spreadsheets1.google.com
203.208.46.146 spreadsheets2.google.com
203.208.46.146 spreadsheets3.google.com

#Gmail
203.208.46.146 mail.google.com
203.208.46.146 chatenabled.mail.google.com #Gmail中Gtalk聊天服务

#Google 搜索
203.208.46.146 www.google.com

#Google preview
203.208.46.146 www.googlepreview.com

#Google 翻译
203.208.46.146 translate.google.com
203.208.46.146 translate.googleapis.com

#Google 搜索建议（IE9）
203.208.46.146 clients5.google.com

#Google Code
203.208.46.146 code.google.com

#Picasa 网络相册
203.208.46.146 picasaweb.google.com
203.208.46.146 lh0.ggpht.com
203.208.46.146 lh1.ggpht.com
203.208.46.146 lh2.ggpht.com
203.208.46.146 lh3.ggpht.com
203.208.46.146 lh4.ggpht.com
203.208.46.146 lh5.ggpht.com
203.208.46.146 lh6.ggpht.com
203.208.46.146 lh7.ggpht.com
203.208.46.146 lh8.ggpht.com
203.208.46.146 lh8.ggpht.com
203.208.46.146 lh9.ggpht.com
203.208.46.146 lh6.google.com

#Google 个人资料
203.208.46.146 profiles.google.com
203.208.46.146 browsersync.google.com

#Google+
203.208.46.146 talkgadget.google.com #Google+中的聊天服务
203.208.46.146 ssl.gstatic.com
203.208.46.146 images-pos-opensocial.googleusercontent.com
203.208.46.146 images1-focus-opensocial.googleusercontent.com
203.208.46.146 images2-focus-opensocial.googleusercontent.com
203.208.46.146 images3-focus-opensocial.googleusercontent.com
203.208.46.146 images4-focus-opensocial.googleusercontent.com
203.208.46.146 images5-focus-opensocial.googleusercontent.com
203.208.46.146 images6-focus-opensocial.googleusercontent.com
203.208.46.146 plus.google.com

#Download 下载
203.208.46.146 dl.google.com
203.208.46.146 dl-ssl.google.com

#Groups
203.208.46.146 groups.google.com

#Google URL Shortener
203.208.46.146 goo.gl

#Google App Engine
203.208.46.146 appengine.google.com

#Android Developer
74.125.113.121 developer.android.com
#Hosts文件结束，这句不需要复制