static void Main(string[] args)
{
//var intList = new List<int>();
//var racers = new List<Racer>();
List <int> intList = new List <int>(10); //创建一个容量为10个元素的集合
intList.Capacity = 20; //使用Capacity属性可以获取和设置集合的容量
Console.WriteLine(intList.Count); //只要不把元素添加到列表中，元素个数就是0
intList.TrimExcess(); //如果将元素添加到列表中，且不希望添加更多的元素，就可以调用TrimExcess（）方法，去除不需要的容量
//1.集合初始值设定项
var IntList = new List <int>()
{
1, 2
};
var stringList = new List <string>()
{
"one", "two"
};
//2.添加元素
intList.Add(1);
intList.Add(2);
stringList.Add("three");
stringList.Add("four");
var jinghui = new Racer(3, "jinghui", "chen", "China", 14);
var jiaer = new Racer(9, "jiaer", "hong", "Japan", 14);
var wudi = new Racer(34, "wudi", "tong", "USA", 12);
var racers = new List <Racer>(20)
{
jinghui, jiaer, wudi
}; //添加到集合中
racers.Add(new Racer(24, "yaoyao", "yu", "Hongkong", 91));
racers.Add(new Racer(27, "wenzi", "liu", "Canada", 20));
racers.AddRange(new Racer[]
{
new Racer(14, "niki", "li", "Austria", 25),
new Racer(21, "guanrong", "tong", "France", 51)
});//AddRange()方法，可以一次给集合添加多个元素
//3.插入元素
racers.Insert(5, new Racer(6, "xinxin", "xie", "China", 3));//5为指定的位置
//4.访问元素
Racer r1 = racers[3];
for (int i = 0; i < racers.Count; i++)
{
Console.WriteLine(racers[i]);
}
//5.删除元素
Console.WriteLine();
racers.RemoveAt(7);//利用索引，传递要删除的元素
int index = 5;
int count = 2;
racers.RemoveRange(index, count);//第一个参数指定了开始删除的元素索引，第二个参数指定了要删除的元素个数
foreach (Racer r in racers)
{
Console.WriteLine(r);
}
//6.搜索元素
Console.WriteLine();
int index1 = racers.IndexOf(jinghui);
Console.WriteLine(index1);
int index2 = racers.FindIndex(new FindCounty("USA").FindCountryPredicate);
Console.WriteLine(index2);
int index3 = racers.FindIndex(r => r.Country == "China");
Console.WriteLine(index3);
List <Racer> bigWinners = racers.FindAll(r => r.Wins >= 20);//">="是符合wins大于等于20的人
foreach (Racer r in bigWinners)
{
Console.WriteLine("{0:A}", r);
}
//7.排序
Console.WriteLine();
racers.Sort(new RacerComparer(RacerComparer.CompareType.Country));
racers.ForEach(Console.WriteLine);
//8.类型转换
List <Person> persons = racers.ConvertAll <Person>(
r => new Person(r.FirstName + " " + r.LastName));//创建并返回了一个新的Person对象（对FirstName，LastName进行转换）
/*Console.WriteLine();
* var dm = new DocumentManager();
* ProcessDocuments.Static(dm);
* for (int i = 0; i < 10; i++)
* {
* var doc = new Document("Doc" + i.ToString(), "content");
* dm.AddDocument(doc);
* Console.WriteLine("Added document{0}", doc.Title);
* Thread.Sleep(new Random().Next(20));
* }*/
Console.WriteLine();
var zhan = new Stack <char>();
zhan.Push('a');
zhan.Push('b');
zhan.Push('c');
Console.WriteLine("First diedai:");
foreach (char r in zhan)
{
Console.Write(r);
}
Console.WriteLine();
Console.WriteLine("Second diedai:");
while (zhan.Count > 0)
{
Console.Write(zhan.Pop());
}
Console.WriteLine();
Console.WriteLine();
var books = new SortedList <string, string>();
books.Add("Professional WPF Programming", "978–0–470–04180–2");
books.Add("Professional ASP.NET MVC 3", "978–1–1180–7658–3");
books["Beginning Visual C# 2010"] = "978–0–470-50226-6";
books["Professional C# 4 and .NET 4"] = "978–0–470–50225–9";
foreach (KeyValuePair <string, string> book in books)
{
Console.WriteLine("{0}, {1}", book.Key, book.Value);
}
foreach (string title in books.Keys)//Keys属性返回IList<TKey>
{
Console.WriteLine(title);
}
foreach (string isbn in books.Values)//Values属性返回IList<TValue>
{
Console.WriteLine(isbn);
}
{
string zhis;
string keys = "Professional C# 7.0";
if (!books.TryGetValue(keys, out zhis))
{
Console.WriteLine("{0} not found", keys);
}
}//调用TryGetValue（）方法，尝试获得指定键的值，如果有该key则返回true，没有则表示指定键对应的值不存在
/*Console.WriteLine();
* var employees = new Dictionary<EmployeeId, Employee>(31);
*
* var idTony = new EmployeeId("C3755");
* var tony = new Employee(idTony, "Tony Stewart", 379025.00m);
* employees.Add(idTony, tony);
* Console.WriteLine(tony);
*
* var idCarl = new EmployeeId("F3547");
* var carl = new Employee(idCarl, "Carl Edwards", 403466.00m);
* employees.Add(idCarl, carl);
* Console.WriteLine(carl);
*
* var idKevin = new EmployeeId("C3386");
* var kevin = new Employee(idKevin, "Kevin Harwick", 415261.00m);
* employees.Add(idKevin, kevin);
* Console.WriteLine(kevin);//用Add（）方法创建员工对象和ID
*
* var idMatt = new EmployeeId("F3323");
* var matt = new Employee(idMatt, "Matt Kenseth", 1589390.00m);
* employees[idMatt] = matt;
* Console.WriteLine(matt);//使用索引器，将键和值添加到字典中
*
* var idBrad = new EmployeeId("D3234");
* var brad = new Employee(idBrad, "Brad Keselowski", 322295.00m);
* employees[idBrad] = brad;
* Console.WriteLine(brad);
* while(true)
* {
* Console.WriteLine("Enter employee id(x to exit)>");
* var userInput = Console.ReadLine();
* userInput = userInput.ToUpper();
* if (userInput == "X") break;
* EmployeeId id;
* try
* {
* id = new EmployeeId(userInput);
* Employee employee;
* if(!employees.TryGetValue(id,out employee))
* {
* Console.WriteLine("Employee with id {0} does not exist", id);
* }
* else
* {
* Console.WriteLine(employee);
* }
* }
* catch (EmployeeIdException ex)
* {
* Console.WriteLine(ex.Message);
* }
*
* }*/
Console.WriteLine();
var xuanshou = new List <Racer>();
xuanshou.Add(new Racer(26, "Jacques", "Villeneuve", "Canada", 11));
xuanshou.Add(new Racer(18, "Alan", "Jones", "Australia", 12));
xuanshou.Add(new Racer(11, "Jackie", "Stewart", "United Kingdom", 27));
xuanshou.Add(new Racer(15, "James", "Hunt", "United Kingdom", 10));
xuanshou.Add(new Racer(5, "Jack", "Brabham", "Australia", 14));
var lookupRacers = xuanshou.ToLookup(r => r.Country);
foreach (Racer r in lookupRacers["Australia"])
{
Console.WriteLine(r);
}
Console.WriteLine();
var companyTeams = new HashSet <string>()
{
"Ferrari", "McLaren", "Mercedes"
};
var traditionalTeams = new HashSet <string>()
{
"Ferrari", "McLaren"
};
var privateTeams = new HashSet <string>()
{
"Red Bull", "Lotus", "Toro Rosso", "Force India", "Sauber"
};
if (privateTeams.Add("Williams"))
{
Console.WriteLine("Williams added");
}
if (!companyTeams.Add("McLaren"))
{
Console.WriteLine("McLaren was already in this set");
}
if (traditionalTeams.IsSubsetOf(companyTeams))
{
Console.WriteLine("traditionalTeams is subset of companyTeams");
}
if (companyTeams.IsSupersetOf(traditionalTeams))
{
Console.WriteLine("companyTeams is a superset of traditionalTeams");
}
traditionalTeams.Add("Williams");
if (privateTeams.Overlaps(traditionalTeams))
{
Console.WriteLine("At least one team is the same with the traditional " +
"and private teams");
}
var allTeams = new SortedSet <string>(companyTeams);
allTeams.UnionWith(privateTeams);
allTeams.UnionWith(traditionalTeams);
Console.WriteLine();
Console.WriteLine("all teams");
foreach (var team in allTeams)
{
Console.WriteLine(team);
}//UnionWith()方法可继续填充
allTeams.ExceptWith(privateTeams);
Console.WriteLine();
Console.WriteLine("no private team left");
foreach (var team in allTeams)
{
Console.WriteLine(team);
}//ExceptWith（）方法从allTeams集中删除所有privateTeams
Console.WriteLine();
var data = new ObservableCollection <string>();
data.CollectionChanged += Data_CollectionChanged;
data.Add("One");
data.Add("Two");
data.Insert(1, "Three");
data.Remove("One");
Console.WriteLine();
BitArrayDemo();
Console.WriteLine();
BitVectorDemo();
Console.WriteLine();
ListSample();
}
public bool FindCountryPredicate(Racer racer)
{
//Contract.Requires<ArgumentNullException>(racer != null);
return(racer.Country == country);
}
