This is because, in the static case, the <dot notation> means two different resources, while in the dynamic case, it is the same resource.
这是因为,在静态情况下,<dot notation> 表示两种不同的资源,而在动态情况下,则是同一种资源。
It would be much better to simply prevent the programmer from referring to generic types in static fields, as is done in the case of static methods and classes.
象对静态方法和类所做的那样,只要防止程序员在静态字段中引用泛型类型,情况就会好很多。
The use case model is static; it doesn't show the sequence in which the use cases are performed.
用例模型是静态的,并不显示用例执行的顺序。
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