GIT: 撤销修改

git-push

git-rm

git-clone

创建版本库: git-init

git-add-commit

git-merge-conflict

git-remote-add

git-pull-merge-push

git-no-ff

git-rm-tag

git-push-by-friend

用Visual Studio Code搭建Node.js开发环境

编写第一个Python程序

SQL: read uncommitted

Python控制的小车

Python定义函数并调用

install-py