蓝桥杯算法提高- c++_ch02_02-题解（Java代码）简单易懂

解题思路:

注意事项:

参考代码:

 Scanner scanner=new Scanner(System.in);
    int a=scanner.nextInt();                 //定义两个数和符号
    int b=scanner.nextInt();
      char c=scanner.next().charAt(0);
      int sum=0;                           
      switch (c) {
      case '+':                              //根据符号不同 则算对应的算法
      sum=a+b; 
          System.out.println(sum);
          break;
      case '-':
      sum=a-b;
          System.out.println(sum);
          break;
      case '*':
      sum=a*b;
          System.out.println(sum);
          break;
      case '%':
      sum=a%b;
          System.out.println(sum);
          break;
          case '/':
          sum=a/b;
              System.out.println(sum);
              break;
      default:
          break;
      }