git init: in a given folder to initialize git that is below this folder to add a .git folder
git add:. When a file is modified to move the file to the cache all sequence changes
git commit -m "TXT" to change the file into the upload sequence and annotate
git branch XXX: Creating a branch
git branch -a: to see how many branches there
git checkout XXX(this is branch)： switch to selected branch
git log -oneline: log only shows one line for each state ID number is the ID number of the total first few
git checkout ID (short) time to view the file ID number of state
git revert ID (short) just delete the ID number corresponding to commit
Everything changes after the hard delete this ID number - git reset ID (short)
git pull <url> from the file copy down github
git push <url> upload files to github