public void AddShortCut(Keys[] keys, FuncDel func, object[] args)
{
if (IsCapturing)
{
MessageBox.Show("You cannot add another shortcut while the script is capturing shortcuts!");
}
else
{
if (keys.Length > 0)
{
bool nFound = false;
if (shortcuts.Count > 0)
{
foreach (ShortcutInfo shortcut in shortcuts)
{
if (shortcut.Shortcut.Length == keys.Length)
{
for (int i = 0; i < shortcut.Shortcut.Length; i++)
{
if (shortcut.Shortcut[i] != keys[i])
{
nFound = true;
break;
}
}
if (!nFound)
{
break;
}
}
}
}
else
{
nFound = true;
}
if (nFound)
{
ShortcutInfo si = new ShortcutInfo();
si.Callback = func;
si.Shortcut = keys;
si.Arguments = args;
shortcuts.Add(si);
}
else
{
MessageBox.Show("The shortcut \"" + String.Join("+", keys) + "\" already exists.");
}
}
}
}
static void Main(string[] args)
{
Func <double, double> fn = Math.Sin;
Console.WriteLine($"Value of Sin: {fn(30.0) }");
//user defined function for delegate
FuncDel funcDel = Math.Sin;
Console.WriteLine($"Value of Sin: {funcDel(30.0) }");
fn = Program.Square;
// calling user defined function
Console.WriteLine($"Square of a number: {fn(5.00)}");
Func <int, bool> evenOdd = Program.IsEven;
// calling user defined function
Console.WriteLine($"Given number is Even: {evenOdd(11)}");
Func <string, string, string, string> maxString = Program.Max;
// calling user defined function-Max
Console.WriteLine($"Largest String: {maxString("Sujeet", "Tin", "Zhing")}");
Func <double, double, double> sum = Program.Sum;
// calling user defined function-Sum
Console.WriteLine($"Addition : { sum(12.5, 2.4)}");
Func <double, double> delSq = Square;
Console.WriteLine(delSq(4));
Func <string, string, string, string> s4 = Max;
Console.WriteLine(s4("me", "she", "he"));
Console.WriteLine($"largest of three iS {s4("me", "she", "he")}");
Func <double, double, double> dSum = sum;
Console.WriteLine($"sum of two num is {dSum(5,6)}");
Action <double> sq2 = Square2;
sq2(5);
} // end Main()
private double calcS(FuncDel f, double a, double b, int split)
{
// Вычисление площади трапеций
double S = 0;
double dX = (b - a) / split;
double y1 = f(a);
for (int i = 0; i < split; i++)
{
double y2 = f(a + dX * (i + 1));
S += (y1 + y2) / 2.0f * dX;
y1 = y2;
}
return(S);
}
public double calculate(FuncDel f, double a, double b, double precision, out double fault, out int split)
{
double S1, S2;
split = 1;
S2 = calcS(f, a, b, split);
do
{
S1 = S2;
split *= 2;
S2 = calcS(f, a, b, split);
} while (Math.Abs(S2 - S1) > precision && split < 10000000);
fault = Math.Abs(S2 - S1); // оценка Рунге
return(S2);
}
//delegate double DelSquare(double number); // delgate declaration
static void Main(string[] args)
{
Func <double, double> fn = Math.Sin;
Console.WriteLine($"Value of Sin: {fn(30.0) }");
FuncDel funcDel = Math.Sin;
Console.WriteLine($"Value of Sin: {funcDel(30.0) }");
fn = Program.Square;
// calling user defined function
Console.WriteLine($"Square of a number: {fn(5.00)}");
// it is a built in template for delgates
Func <int, bool> evenOdd = Program.IsEven;
// calling user defined function
Console.WriteLine($"Given number is Even: {evenOdd(11)}");
Func <string, string, string, string> maxString = Program.Max;
// calling user defined function-Max
Console.WriteLine($"Largest String: {maxString("Sujeet", "Tin", "Zhing")}");
Func <double, double, double> sum = Program.Sum;
// calling user defined function-Sum
Console.WriteLine($"Addition : { sum(12.5, 2.4)}");
//DelSquare delsquare = Square; // create a delgate variable and assign a function to that.
Func <double, double> delsquare = Square;
Console.WriteLine(delsquare(4));
Func <string, string, string, string> delmax = Max;
Console.WriteLine(delmax("Sujeet", "Jonh", "Rick"));
Console.WriteLine("Largest of three strings: {0}", delmax("Sujeet", "Jonh", "Rick"));
Console.WriteLine($"Largest of three strings: { delmax("Sujeet", "Jonh", "Rick")}");
Action <double> delsqr2 = Square2;
} // end Main()
static void Main(string[] args)
{
FuncDel f1 = Func1;
Console.WriteLine(f1(5));
f1 += Func2;
Console.WriteLine(f1(5));
processFunc(4.5, f1);
FuncPrint <double, FuncDel> printDel = processFunc;
printDel += processFunc2;
printDel(6.5, f1);
Func <double, double> f2 = Func2;
f2 += Func1;
Console.WriteLine(f2(3));
}
public string CallFuncDel(FuncDel someFunc) => someFunc(Name, 5);
/// <summary>
/// 使用委托的无返回值的函数
/// </summary>
/// <param name="del">委托类型参数</param>
public void FuncFromDelegate(FuncDel del)
{
}
public Function(string name, FuncDel f)
{
Name = name;
Func = f;
}
static void processFunc2(double x, FuncDel f)
{
Console.WriteLine(f(x));
Console.WriteLine(f(x + 1));
}