用java进行的尝试

解题思路:

注意事项:

参考代码:

import java.util.Scanner;

public class Main{

public static void main(String[] args){

Scanner myScanner = new Scanner(System.in);

    int a = myScanner.nextInt();

    int b = myScanner.nextInt();

    char c = myScanner.next().charAt(0);

    switch(c){

    case '+':System.out.println(a+b);break;

    case '-':System.out.println(a-b);break;

    case '*':System.out.println(a*b);break;

    case '/':System.out.println(a/b);break;

    case '%':System.out.println(a%b);break;

    }

    System.out.printf("\n");

}

}