package exp6;

import java.util.Scanner;

public class Calculator {
    public static void main(String[] args) {
        double a, b;
        String opType;
        Scanner in =new Scanner(System.in);

        System.out.print("请输入第一个数: ");
        a = in.nextDouble();
        System.out.print("请输入第二个数: ");
        b = in.nextDouble();
        System.out.print("请选择运算(+-*/): ");
        opType = in.next();
        in.close();

        Operation op = OperationFactory.createOperate(opType);
        op.setNumber(a, b);
        
        System.out.println("结果是: "+op.result());
    }
}