git diff命令详解

git diff命令详解

git diff命令存在三种常用的形式，或者说更多。不定期更新

1. git diff

   git diff命令是将working directory和staging area进行对比。所以基准是staging area.
   - 代表在staging area的基础上少了什么
   +代表在staging area的基础上多了什么

2. git diff --staged 或者
   git diff --cached

   这两条命令为staging area与last commit比较。基准是last commit.

3. git diff HEAD

   因为HEAD始终指向当前分支，所以该命令表示working directory与当前分支的last commit做比较。基准是last commit in current branch