Types str list tuple dict Types Python is a dynamically typed language, meaning that variables do not have a type and therefore do not have to be declared. Values, on t...
select Using an iterator-based select for lower memory use Rendering rows using represent Shortcuts Fetching a Row Recursive select s Serializing Rows in views orderby , g...
python开发框架 框架的基本概念 python框架 Tornado 安装Tornado “One does not live by bread alone,but by every word that comes from the mouth of God”—(MATTHEW4:4) python开发框架 不管是python,还是...
Ruby on Rails 简介 什么是网站开发框架(Web framework)? ORM URL路由 什么是Ruby on Rails? 为何选择Rails? Rails 不是什么 什么是Ruby? 动态语言的好处 为何选择Ruby? Ruby on Rails 简介 “Life’s too short to build s...
Validators Text format validators IS_ALPHANUMERIC IS_LOWER IS_UPPER IS_EMAIL IS_MATCH IS_LENGTH IS_URL IS_SLUG IS_JSON Date and time validators IS_TIME IS_DATE...