如您所见，清单4比起清单3样本代码明显减少。

As you can see, Listing 4 has much less boilerplate code than Listing 3.

youdao

该许可证甚至允许您在本代码的基础上建造商业性可用的新产品。

The license even lets you build commercially exploitable new products based on the code.

youdao

说明：ds2401增强型硅序列号是一款低成本的电子注册码，本代码应用了该元件的使用。

Enhanced DS2401 silicon serial number is a low-cost electronic key, the code applied to the use of the components.

youdao

Because what you don't see in this file is any code a that actually says put a letter of the alphabet at the top left hand corner of the screen and then put the next character to the right in other words, I'm taking for granted at this moment in time that my computer knows how to print something to the screen.

就是这些你在本文件中看不到的一些代码,实现了将首字母,放在屏幕的左上角,然后把其他字母加在其右边，我想当然地认为,我的电脑知道如何打印相应信息到屏幕上。

哈佛公开课 - 计算机科学课程节选