# 删除 untracked files
git clean -f
# 连 untracked 的目录也一起删掉
git clean -fd
# 连 gitignore 的untrack 文件/目录也一起删掉 (慎用,一般这个是用来删掉编译出来的 .o之类的文件用的)
git clean -xfd
# 在用上述 git clean 前,墙裂建议加上 -n 参数来先看看会删掉哪些文件,防止重要文件被误删
git clean -nxfd
git clean -nf
git clean -nfd
# Restore a file has been modified (modifications withdraw uncommitted):
git Checkout File-name
For example: git checkout src / com / android /.../ xxx.java
For example java files are modified, one need not withdraw, you can use
$ git checkout *.java
Undo all changes
$ git checkout