97 lines
3.0 KiB
C#
97 lines
3.0 KiB
C#
using System;
|
|
|
|
/*
|
|
* пишем калькулятор C#
|
|
*/
|
|
class Program
|
|
{
|
|
static void Main()
|
|
{
|
|
while (true)
|
|
{
|
|
Console.Clear();
|
|
double a, b, result;
|
|
string action;
|
|
try
|
|
{
|
|
//if else
|
|
Console.WriteLine(value: "Введите первое число");
|
|
a = double.Parse(Console.ReadLine());
|
|
Console.WriteLine(value: "Введите первое число");
|
|
b = double.Parse(Console.ReadLine());
|
|
Console.WriteLine(value: "Действие + - % * /");
|
|
action = Console.ReadLine();
|
|
result = 0;
|
|
|
|
if (action == "+")
|
|
{
|
|
result = a + b;
|
|
}
|
|
else if (action == "-")
|
|
{
|
|
result = a - b;
|
|
}
|
|
else if (action == "%")
|
|
{
|
|
result = a % b;
|
|
}
|
|
else if (action == "*")
|
|
{
|
|
result = a * b;
|
|
}
|
|
else if (action == "/")
|
|
{
|
|
if (b == 0)
|
|
result = 0;
|
|
else
|
|
result = a / b;
|
|
}
|
|
else
|
|
{
|
|
Console.WriteLine(Environment.NewLine + "Я не знаю!");
|
|
}
|
|
Console.WriteLine("Результат if else: " + result);
|
|
|
|
//switch
|
|
Console.WriteLine(Environment.NewLine + "Введите действие + - * % /" + Environment.NewLine);
|
|
|
|
ConsoleKey consoleKey = Console.ReadKey().Key;
|
|
switch (consoleKey)
|
|
{
|
|
case ConsoleKey.Add:
|
|
case ConsoleKey.OemPlus:
|
|
result = a + b;
|
|
break;
|
|
case ConsoleKey.Subtract:
|
|
case ConsoleKey.OemMinus:
|
|
result = a - b;
|
|
break;
|
|
case ConsoleKey.Multiply:
|
|
result = a * b;
|
|
break;
|
|
case ConsoleKey.Divide:
|
|
if (b == 0)
|
|
result = 0;
|
|
else
|
|
result = a / b;
|
|
break;
|
|
case ConsoleKey.D5:
|
|
result = a % b;
|
|
break;
|
|
default:
|
|
Console.WriteLine(Environment.NewLine + "Я не знаю!");
|
|
break;
|
|
}
|
|
|
|
Console.WriteLine(Environment.NewLine + "Результат switch: " + result);
|
|
}
|
|
catch (Exception)
|
|
{
|
|
Console.WriteLine("Ошибка!");
|
|
continue;
|
|
}
|
|
|
|
Console.ReadLine();
|
|
}
|
|
}
|
|
} |