不用感觉不舒服,如果你注意到嵌套类(StringValue)从一个与包容类(String)无关的类(RCObject)继承而来的话。它第一眼看上去是有些古怪,但完全合理。
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在大学,我不属于我花了一年两年,我的专业无关的类,但我没有后悔我本科的经验。
I spent one year at a college where I did not belong and two years taking classes irrelevant for my major, but I have no regrets about my undergraduate experience.
伪类的表示方法是在名称前面加一个冒号。伪类与特定元素无关,而是根据文档中发生的情况应用样式。
Designated by a colon preceding the name, pseudo-classes are independent of particular elements and instead look at what's happening within the document.
因此,在这一步,我将会侧重于业务方面的,与技术无关的分析类。在讨论设计的时候再讨论涉及技术的部分。
So, in this article I am going to concentrate on the business-level, technology-agnostic analysis classes, and leave alone almost all technology issues until we discuss design.
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