static void Main(string[] args)
{
newDelegate newDelegate = add;
newDelegate("asad", 17);
Task.Delay(5000).Wait();
Console.WriteLine("----- 5second delayed--");
Console.ReadKey();
}
static void Main(string[] args)
{
myGenericArray <int> intArray = new myGenericArray <int>(5);
for (int i = 0; i < 5; i++)
{
intArray.SetItem(i, i * 5);
}
for (int i = 0; i < 5; i++)
{
Console.WriteLine(intArray.GetItem(i));
}
intArray.genericMethod <String>("hello Generic Method");
myGenericArray <char> charArray = new myGenericArray <char>(5);
for (int i = 0; i < 5; i++)
{
charArray.SetItem(i, (char)(i + 97));
}
for (int i = 0; i < 5; i++)
{
Console.WriteLine(charArray.GetItem(i));
}
//myGenericArray<string> strArray = new myGenericArray<String>(5);
//for (int i = 0; i < 5; i++)
//{
// strArray.SetItem(i, "Hello world"+i.ToString());
//}
//for (int i = 0; i < 5; i++)
//{
// Console.WriteLine(strArray.GetItem(i));
//}
int a = 1;
int b = 2;
swap <int>(ref a, ref b);
Console.WriteLine("a:{0},b:{1}", a, b);
newDelegate <int> d1 = new newDelegate <int>(mutiply);
d1(5);
newDelegate <string> d2 = new newDelegate <string>(sayHello);
d2("hello Dennis");
Console.WriteLine("num:{0}", num);
Console.WriteLine("d2:{0}", str);
Console.ReadLine();
}
static void Main(string[] args)
{
// //新建一个IList<type>类型的集合.
IList <string> list = new List <string>()
{
"Amey", "Emmitt", "Ena", "Epps", "Enid", "Loomis"
};
// List<string> list = new List<string>(){"Amey", "Emmitt", "Ena", "Epps", "Enid", "Loomis"};
////上面两句效果好像是一样的
list.Add("Lorna");
GetHelp.Display2("list", list);
//使用lamda表达式筛选
var list1 = list.Where(m => m == "Amey");
GetHelp.Display2("list1", list1);
//用匿名委托筛选
var list2 = list.Where(delegate(string s)
{
if (s == "Amey")
{
return(true);
}
else
{
return(false);
}
});
GetHelp.Display2("list2", list2);
// 使用自定义委托
newDelegate newDelegate1 = new newDelegate(GetHelp.mathName);
newDelegate1 += GetHelp.mathName2;
var list3 = list.Where(m => newDelegate1(m));
GetHelp.Display2("list3", list3);
//预定义委托 Fun<type,bool>
Func <string, bool> newFunc2 = GetHelp.mathName;
var list4 = list.Where(m => newFunc2(m));
GetHelp.Display2("list4", list4);
//xu modify
Func <string, bool> newFunc3 = GetHelp.mathName;
var list5 = list.Where(GetHelp.mathName);
GetHelp.Display2("list5", list5);
}
/// <summary>
/// CSharpTutorialUtilityEdition(C#教程实用版)
/// 1.15.1 delegate 委托
/// 相当于C#中的函数指针;
/// </summary>
static void Main(string[] args)
{
MyClass p = new MyClass();
//用new建立委托类MyDelegate对象,d中村中非静态的方法InstanceMethod()的地址
//参数是被委托的方法d();
newDelegate d = new newDelegate(p.InstanceMethod);
d();
d = new newDelegate(MyClass.StaticMethod); //参数是被委托的方法
d(); //调用静态方法
}
private void button2_Click(object sender, EventArgs e)
{
readData = "Connecting to Chat Server ...";
msg();
clientSocket.Connect(txtIP.Text, int.Parse(txtPort.Text));
serverStream = clientSocket.GetStream();
byte[] outStream = System.Text.Encoding.ASCII.GetBytes(txtName.Text + "$");
serverStream.Write(outStream, 0, outStream.Length);
serverStream.Flush();
myDelegate = new newDelegate(disconnect);
Thread ctThread = new Thread(getMessage);
ctThread.IsBackground = true;
ctThread.Start();
button2.Enabled = false;
}
static void Main(string[] args)
{
CarQuerries carQuerries = new CarQuerries();
carQuerries.ExecuteQueries();
carQuerries.SaveToXml();
carQuerries.ReadFromXml();
var processList = Process.GetProcesses().ToList();
Console.WriteLine("memory used by processes: " + processList.GetTotalMemory());
Func <int, bool> IsLeapYear = (x) => DateTime.IsLeapYear(x);
instance += x => Console.WriteLine("year {0} is {1}", x, IsLeapYear(x) ? "leap" : "not leap");
instance(2019);
Console.WriteLine("Is 2019 a leap year? " + IsLeapYear(2019));
MyGenericCollection <Car> carTest = new MyGenericCollection <Car>();
carTest.Add(new Car("Mini")
{
Sales2014 = 1241, Sales2015 = 1235
});
carTest.Add(new Car("BMW")
{
Sales2014 = 1241, Sales2015 = 1235
});
carTest.Add(new Car("AAA")
{
Sales2014 = 1241, Sales2015 = 1235
});
Console.WriteLine("car.Make index 30: " + carTest.Get(30).Make);
Console.WriteLine("car.Make index 3: " + carTest.Get(3).Make);
Console.WriteLine("is list empty? " + carTest.IsEmpty());
Console.ReadLine();
}
