static void Main0()
{
var intList0 = new List <int>()
{
1, 2
};
var stringList = new List <string>()
{
"小洋粉", "大洋粉"
}; // 编译器会将初始值设定项 转换为 每一项的Add()方法;
var intList1 = new List <int>(10)
{
3, 5, 7, 4
};
var racers0 = new List <Racer>();
var graham = new Racer(7, "Graham", "Hill", "UK", 14);
var emerson = new Racer(13, "Emerson", "Fittipaldi", "Brazil", 14);
var mario = new Racer(16, "Mario", "Andretti", "USA", 12);
var racers1 = new List <Racer>(20)
{
graham, emerson, mario
};
racers1.Add(new Racer(24, "Michael", "Schumacher", "Germany", 91));
racers1.Add(new Racer(24, "Mika", "Hakkinen", "Finland", 20));
racers1.AddRange(new Racer[]
{
new Racer(14, "Niki", "Lauda", "Austria", 25),
new Racer(21, "Alain", "Prost", "France", 51)
});
racers1.Insert(3, new Racer(6, "Phil", "Hill", "USA", 3));
////////////////////////////////////
///
foreach (var e in racers1)
{
WriteLine(e.ToString("a"));
}
racers1.Sort(new RacerComparer(CompareType.Country));
WriteLine(":::::::::");
foreach (var e in racers1)
{
WriteLine(e.ToString("a"));
}
WriteLine(":::::::::");
racers1.Sort();
Racer racer = racers1.Find(r => r.Id == 21);
WriteLine(racer.ToString("a"));
int index1 = racers1.FindIndex(4, r => r.FirstName == "Mika");
WriteLine(index1);
int index0 = racers1.FindIndex(new FindCountry("Fittipaldi").FindCountryPredicate);
WriteLine(index0);
Racer r1 = racers1[3];
WriteLine(r1);
for (int i = 0; i < racers1.Count; i++)
{
WriteLine(racers1[i]);
}
WriteLine(":::::::::::::");
racers1.RemoveAt(3);
bool a = racers1.Remove(graham);
WriteLine(a);
racers1.RemoveRange(0, 5);
foreach (var r in racers1)
{
WriteLine(r.ToString("a"));
}
stringList.Add("痒痒粉");
stringList.Add("痒痒粉");
stringList.Add("痒痒粉");
stringList.Add("痒痒粉");
foreach (var e in stringList)
{
WriteLine(e);
}
Console.WriteLine(intList1.Capacity);
Console.WriteLine(intList1.Count);
Console.WriteLine(intList1[1]);
intList1.TrimExcess();
Console.WriteLine(intList1.Capacity);
}
public bool FindCountryPredicate(Racer racer) => racer?.LastName == _country;