完整学习git三 查看暂存区目录树 git diff

1显示暂存区中的目录树

　　git ls-files

　　git ls-tree

 git diff 魔法

1工作区与暂存区比较

　　git diff

2工作区与HEAD比较

　　git diff HEAD

3暂存区与HEAD比较

　　git diff --cached

　　git diff --cached HEAD