C#学习 SortedList

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SortedList是C#自带的一个数据结构，我的理解是SortedList相当于一个map，一一映射，假设一个条目是<key,course>,可以通过key查到这一条的index，然后调用GetByIndex(index)方法取得course的内容

创建一个SortedList

SortedList myCourses = new SortedList();

往SortedList里加入内容

static void populateList(SortedList list)        {            list.Add("CS101", "Introduction to Computer Science");            list.Add("CS102", "Data Structures and Algorithm Analysis");            list.Add("CS201", "Introduction to Databases");            list.Add("CS301", "Introduction to Object-Oriented Programming");        }

访问SortedList

static void displayList(SortedList list, string key)        {            int index;            string course;            index = list.IndexOfKey(key);    //返回从零开始的索引            course = (string)list.GetByIndex(index);            Console.WriteLine(course);        }

删除SortedList中的条目

static void removeListItem(SortedList list, string key)        {            int index;            string course;            index = list.IndexOfKey(key);            course = (string)list.GetByIndex(index);            list.Remove(key);            Console.WriteLine(course + " was removed from the list.");        }

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