Part 2 focuses on the common use of drill-down lists as a navigation method, and Part 3 focuses on forms, groupings, and other more advanced topics.

第2部分集中讲解将下钻列表作为导航方法的常见用途，第3部分集中讲解表单、分组及其他更高级的特性。

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We could then double-click a method in this summary to drill down into the Coverage Fileview, showing just which lines were hit or missed in that method.

我们能够双击一个在总结中的方法来进入Coverage Fileview，仅仅显示在那个方法中哪些代码行被访问或者被遗漏。

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This is different from the drill-down method because with zooming, the map is typically not rebuilt or reorganized for each level of magnification.

这种方法由于使用了缩放而不同于drill - down，对于每一个级别的放大操作，地图通常不用重建或重组。

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