运用switch语句编写出这个程序

#include <stdio.h>  
#include <stdlib.h>
  
int main()  
{  
    int x,y,z;  
    char op;  
          
        printf("输入格式:数字 运算符 数字: \n");  
        scanf("%d%c%d",&x,&op,&y);  
        switch(op)  
        {  
        case '+': 
            z=x+y;  
            printf("=%d\n",z); 
            break;  
        case '-':
            z=x-y;  
            printf("=%d\n",z); break;  
        case '*':
            z=x*y;  
            printf("=%d\n",z); break;  
        case '/': 
            z=x/y;  
            printf("=%d\n",z); break;  
        case '%':
            z=x%y;  
            printf("=%d\n",z); break;  
        }  
    return 0;
}