git-flow is a set of extensions git, git basis have on the environment also need to download the git-flow expansion
Install extensions
Linux apt-get install git-flow macOS brew install git-flow-avh windows wget -q -O - --no-check-certificate https://raw.github.com/petervanderdoes/gitflow-avh/develop/contrib/gitflow-installer.sh install stable | bash
Original link: https://danielkummer.github.io/git-flow-cheatsheet/index.zh_CN.html