We will precede or follow general principles and aphorisms with examples that illustrate them: examples drawn not from toy demonstration programs but rather from real working code that is in use every day.

• 在普遍规律、箴言的之前或之后，我们将给出解释性的例子：例子不是来自玩具般的演示程序，而是来自每天都在使用的、真实的运行代码。