Readers should use these sections as a personal checklist: If you do not understand a term, restudy the corresponding part of the chapter.

• 书中很早就开始介绍标准库，示例也已经重新改写，充分利用了标准库设施。我们也对语言主题叙述的先后次序进行了重新编排，使讲解更加流畅。