编写第一个Python程序
git-clone
创建版本库: git-init
Python控制的小车
自制遥控机械臂
install-py
SQL: read committed
git-add-commit
git-status
git-rebase
git-pull-merge-push
git-rm
git-merge-conflict
SQL: read uncommitted
SQL: Repeatable Read
git-remote-add
git-push
GIT: 撤销修改
git-no-ff
git-push-by-friend