Git可以设置全局忽略名单，适用于所有的项目。
- 在用户目录（就windows来说是：C:/Users/用户名）下创建.gitignore_global文件
- 执行如下命令
$ git config --global core.excludesfile .gitignore_global
- 编辑.gitignore_global文件
"#"是.gitignore_global中的注释行
\# Compiled source
*.pyc
*.com
*.class
*.dll
*.exe
*.o
*.so
\# Packages #
\# it's better to unpack these files and commit the raw source
\# git has its own built in compression methods
*.7z
*.dmg
*.gz
*.iso
*.jar
*.rar
*.tar
*.zip
\# Logs and databases
*.log
*.sql
*.sqlite
\# OS generated files
.DS_Store*
ehthumbs.db
Icon?
Thumbs.db
