static void Main(string[] args)
{
char opt;
do
{
Console.WriteLine("Welcom to Rainbow School");
Console.WriteLine("1 - store a new teacher data");
Console.WriteLine("2 - retrieve teacher data");
Console.WriteLine("3 - update teacher data");
Console.WriteLine("Select Option : ");
int choice = int.Parse(Console.ReadLine());
Opration opration = new Opration();
switch (choice)
{
case 1:
opration.writeData();
Console.ReadKey();
break;
/////////////
case 2:
opration.retrieveData();
Console.ReadKey();
break;
/////////////
case 3:
opration.updateData();
Console.ReadKey();
break;
default:
Console.WriteLine("Invalid Choice!!");
break;
}
Console.Write("Do you wish to Continue?(yes/No) : ");
opt = char.Parse(Console.ReadLine());
} while(opt == 'y' || opt == 'Y');
Console.Write("Thank You");
}
static void Main(string[] args)
{
Console.Write("请输入数字A：");
string numA = Console.ReadLine();
Console.Write("请输入运算符：");
string oparate = Console.ReadLine();
Console.Write("请输入数字B：");
string numB = Console.ReadLine();
double result = 0.0;
Opration opration = Factory.CreateOprate(oparate);
opration.NumberA = Convert.ToDouble(numA);
opration.NumberB = Convert.ToDouble(numB);
result = opration.GetResult();
Console.WriteLine("结果：" + result);
Console.ReadKey();
}