The Index contains an alphabeticlist of all classes, interfaces, constructors, methods, and fields.
索引包含一个字母顺序的所有类，接口，构造器，方法，字段的列表。
2
It provides an alphabetic listing with controls to jump to a specific letter page in the contact list as shown in figure 13.
它提供了一个带有控件的字母清单，可以跳到联系人页面中特定字母的页面，如图13所示。
3
If the element has a type attribute, use its value to figure out how the number of each list item should be formatted (Roman numerals, Arabic numerals, or alphabetic characters).