static void Main(string[] args)
{
calculator calc = new calculator();
calc.operations.Add('+', add);
calc.operations.Add('-', sub);
calc.operations.Add('*', mul);
calc.operations.Add('/', div);
calc.operations.Add('%', mod);
while (true)
{
calc.Left = inputdouble("Enter a Left Number:");
while (true)
{
char c = inputchar("Enter a valid operation +-*/% :", calc);
calc.SetOperation(c);
calc.Right = inputdouble("Enter a Right Number: ");
calc.invoke();
Console.WriteLine($"Left is now: {calc.Left}");
}
}
calc.Left = 10;
calc.SetOperation('+');
calc.Right = 20;
calc.invoke();
Console.WriteLine(calc.Left);
}
static void Main(string[] args)
{
calculator n = new calculator();
//qoute method
//while true
int c = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("{0}的阶乘是：{1}", c, n.fact(c));
Console.ReadKey();
}
static char inputchar(string message, calculator calc)
{
while (true)
{
Console.Write(message);
string input;
input = Console.ReadLine();
if (0 < input.Length)
{
if (calc.ValidOp(input[0]))
{
return(input[0]);
}
}
Console.WriteLine("Your response was invalid");
}
}
static void Main(string[] args)
{
user use = new user();
try
{
use.X = '%';
}
catch
{
Console.WriteLine("输入的除法运算符有误，应为‘/’");
}
calculator cal = new calculator();
Console.Write("要进行什么运算：1、整数加减乘除，2、字符串的运算");
m = int.Parse(Console.ReadLine());
if (m == 1)
{
use.input();
switch (use.X)
{
case '+': Console.WriteLine("{0}", use.A + "+" + use.B + "=" + cal.add(use.A, use.B)); break;
case '-': Console.WriteLine("{0}", use.A + "-" + use.B + "=" + cal.Subtract(use.A, use.B)); break;
case '*': Console.WriteLine("{0}", use.A + "*" + use.B + "=" + cal.multiplication(use.A, use.B)); break;
case '/': Console.WriteLine("{0}", use.A + "/" + use.B + "=" + cal.division(use.A, use.B)); break;
default: Console.WriteLine("计算机中无次运算符"); break;
}
Equals(use);
}
else
{
use.sinput();
switch (use.X)
{
case '+': Console.WriteLine("{0}", cal.add(use.Xx, use.Yy)); break;
case '-': Console.WriteLine("{0}", cal.Subtract(use.Xx, use.Yy)); break;
default: Console.WriteLine("计算机中无次运算符"); break;
}
}
}
