As you might guess from looking at the sequence of visitor method calls, some of these calls effectively open a new context for an embedded type signature component.
通过观察访问器方法调用序列,您或许已经猜到,其中部分调用有效地为嵌入的类型签名组件打开了一个新的上下文。
Open the assembly diagram, if it is not already open, and drag a new SCA component with no implementation type onto the canvas.
打开组装关系图(如果尚未打开),将没有实现类型的新s CA组件拖动到画布上。
You therefore need to build a new type of component called PamphletISBN.
因此您需要构建一个名为PamphletISBN的新类型的组件。
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