Student类中定义方法
class Student
{
public void Add(int a,int b)
{
Console.WriteLine("两个数之和为:");
Console.WriteLine(a+b);
}
public void Sub(int a,int b)
{
Console.WriteLine("两个数之差为:");
Console.WriteLine(a-b);
}
public void Mul(int a,int b)
{
Console.WriteLine("两个数乘积为:");
Console.WriteLine(a*b);
}
public void Div(int a,int b)
{
Console.WriteLine("两个数之除为:");
Console.WriteLine(a/b);
}
}
Student stu = new Student();
while (true)
{
Console.WriteLine("请输入第一个数:");
string A = Console.ReadLine();
Console.WriteLine("请输入第二个数:");
string B = Console.ReadLine();
Console.Write("请选择计算符号:");
Console.WriteLine("1:加法;2:减法;3:乘法;4:除法;");
string C = Console.ReadLine();
if (C.Equals("1"))
{
stu.Add(int.Parse(A), int.Parse(B));
}
if (C.Equals("2"))
{
stu.Sub(int.Parse(A), int.Parse(B));
}
if (C.Equals("3"))
{
stu.Mul(int.Parse(A), int.Parse(B));
}
if (C.Equals("4"))
{
stu.Div(int.Parse(A), int.Parse(B));
}
Console.ReadLine();
}