1. 运行 %systemroot%\System32\drivers\etc
2. 打开hosts文件
3. 添加以下内容：
209.85.147.109 pop.gmail.com
209.85.147.109 smtp.gmail.com
66.102.7.19 mail.google.com
209.85.225.101 docs.google.com
209.85.225.102 groups.google.com
74.125.127.139 spreadsheets.google.com
74.125.127.100 services.google.com
74.125.127.100 writely.google.com
