The pseudo code in Listing 1 shows a simplified SQL query that retrieves employee names for all active employees and lists them with the English names of their organizations.
清单1中的伪代码是一个简化的SQL查询，它获取所有活跃职员的姓名并列出他们及英语的组织名称。
2
You can add a pressed button state with CSS by styling the activepseudo-class of the link in question.
你可以通过配置CSS中链接的active伪类来添加一个按下的按钮状态。
3
Other, less-widely supported pseudo-classes include: first-child, : link, : visited, : active, and: focus and: lang. Note that a pseudo-class can be applied to a specific element type, like this.