static void Main(string[] args)
{
People p = new People();
Calcuror c = new Calcuror();
p.Use(c);
}
public void Use(Calcuror c)
{
Console.Write("请输入第一个数字:");
double number1;
number1 = double.Parse(Console.ReadLine());
Console.Write("请输入第二个数字:");
double number2;
number2 = double.Parse(Console.ReadLine());
Console.Write("请输入运算符:");
char oper;
oper = char.Parse(Console.ReadLine());
c.Calculate(number1, number2, oper);
}