static void Test1()
{
//10+5 = 15
Console.WriteLine("Enter string");
string str = Console.ReadLine();
char Sign = ' ';
try
{
if (str.Contains('+'))
{
Sign = '+';
}
else if (str.Contains('-'))
{
Sign = '-';
}
else if (str.Contains('*'))
{
Sign = '*';
}
else if (str.Contains('/'))
{
Sign = '/';
}
else
{
Sign = ' ';
}
string[] numbers = str.Split(Sign, StringSplitOptions.RemoveEmptyEntries);
double a = double.Parse(numbers[0]);
double b = double.Parse(numbers[1]);
MathMethod mathod = null;
MyMath algebra = new MyMath();
switch (Sign)
{
case '+':
mathod = new MathMethod(algebra.Sum); // старий запис
//Console.WriteLine(a+b);
break;
case '-':
mathod = algebra.Sub;
break;
case '*':
mathod = MyMath.Mult;
break;
case '/':
mathod = MyMath.Div;
break;
}
//Console.WriteLine(mathod(a, b));
Console.WriteLine(mathod?.Invoke(a, b));
Console.WriteLine("-------------------------------------------------");
MathMethod math = null;
math = MyMath.Mult; // ДОДАЄМО МЕТОДИ
math += MyMath.Div;
math += algebra.Sub;
math += algebra.Sum;
Console.WriteLine(math?.Invoke(a, b));
math -= algebra.Sum; // видаляємо методи
foreach (MathMethod fun in math.GetInvocationList())
{
Console.WriteLine(fun(a, b));
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
throw;
}
}
static void Test3()
{
//10+5 = 15
Console.WriteLine("Enter string");
string str = Console.ReadLine();
char Sign = ' ';
try
{
if (str.Contains('+'))
{
Sign = '+';
}
else if (str.Contains('-'))
{
Sign = '-';
}
else if (str.Contains('*'))
{
Sign = '*';
}
else if (str.Contains('/'))
{
Sign = '/';
}
else
{
Sign = ' ';
}
string[] numbers = str.Split(Sign, StringSplitOptions.RemoveEmptyEntries);
double av = double.Parse(numbers[0]);
double bv = double.Parse(numbers[1]);
MathMethod mathod = null;
switch (Sign)
{
case '+':
mathod = (a, b) => a + b;
break;
case '-':
mathod = (a, b) => a - b;
break;
case '*':
mathod = (a, b) => a * b;
break;
case '/':
mathod = (a, b) => a / b;
break;
}
//Console.WriteLine(mathod(a, b));
Console.WriteLine(mathod?.Invoke(av, bv));
ShowMethod sm = d => Console.WriteLine($"d={d}");
Show show = () => Console.WriteLine($"Hello");
show += () => Console.WriteLine($"By");
sm(159.36);
show();
}
catch (Exception e)
{
Console.WriteLine(e.Message);
throw;
}
}