转自：http://foreverdo.diandian.com/post/2012-09-20/40038034798

How to make .gitignore works?

Just got the answer from the IRC channel.

Running command:

    git rm -r --cached .(delete all cached file)
此处注意啊  末尾有个 空格+点

This removes everything from the index, then just run:

    git add .

此处注意啊  末尾有个 空格+点

Commit it:

    git commit -m ".gitignore is now working"