所以我在我的 .gitignore 文件中添加了一个文件夹。

一旦我做了git status它告诉我

# On branch latest
nothing to commit (working directory clean)

但是，当我尝试更改分支时，我得到以下信息：

My-MacBook-Pro:webapp marcamillion$ git checkout develop
error: The following untracked working tree files would be overwritten by checkout:
    public/system/images/9/thumb/red-stripe.jpg
    public/system/images/9/original/red-stripe.jpg
    public/system/images/8/thumb/red-stripe-red.jpg
    public/system/images/8/original/red-stripe-red.jpg
    public/system/images/8/original/00-louis_c.k.-chewed_up-cover-2008.jpg
    public/system/images/7/thumb/red-stripe-dark.jpg
    public/system/images/7/original/red-stripe-dark.jpg
    public/system/images/7/original/DSC07833.JPG
    public/system/images/6/thumb/red-stripe-bw.jpg
    public/system/images/6/original/website-logo.png
    public/system/images/6/original/red-stripe-bw.jpg
    public/system/images/5/thumb/Guy_Waving_Jamaican_Flag.jpg
    public/system/images/5/original/logocompv-colored-squares-100px.png
    public/system/images/5/original/Guy_Waving_Jamaican_Flag.jpg
    public/system/images/4/thumb/DSC_0001.JPG
    public/system/images/4/original/logo.png
    public/system/images/4/original/DSC_0001.JPG
    public/system/images/4/original/2-up.jpg
    public/system/images/3/thumb/logo2.gif
    public/system/images/3/original/logo2.gif
    public/system/images/3/original/Guy_Waving_Jamaican_Flag.jpg
    public/system/images/3/original/11002000962.jpg
    public/system/images/2/thumb/Profile Pic.jpg
    public/system/images/2/original/Profile Pic.jpg
    public/system/images/2/original/02 Login Screen.jpg
    public/system/images/1/original/Argentina-2010-World-Cup.jpg
Please move or remove them before you can switch branches.
Aborting

这是我的 .gitignore 文件的样子：

.bundle
.DS_Store
db/*.sqlite3
log/*.log
tmp/**/*
public/system/images/*
public/system/avatars/*

我怎样才能让它工作，这样我就可以在不删除这些文件的情况下切换分支？

如果我进行更改，会影响这些文件吗？换句话说，如果我之后回到这个分支，直到我最近的提交，一切都会完美吗？

我不想丢失这些文件，我只是不想跟踪它们。