事实上，一个UML2.0原型被定义成好像它仅仅只是一个现有uml元类的子集，并带有关联的属性(代表加有标签的值的标签)，操作和限制。

In effect, a UML 2.0 stereotype is defined as if it were simply a subclass of an existing UML metaclass, with associated attributes (representing tags for tagged values), operations, and constraints.

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然后，还需要在cmdlineparser类上定义一个类级别的变量，定义用于代表选项的实际字符串值。

Second, you need to define a class-level variable on the CmdLineParser class as well that defines the actual string value to represent the option. You can do this by adding this line.

youdao