用c语言编写四则运算,急呀!越简单越好答:include <stdio.h> void main(){ int a,b;char op;scanf("%d%c%d",&a,&op,&b);switch(op){ case '-':printf("%d%c%d=%d\n",a,op,b,a-b);break;case '+':printf("%d%c%d=%d\n",a,op,b,a+b);break;case '/':if(b==0)printf("error\n");else printf("%d%c%d...
从键盘输入一个简单的四则运算表达式答:include "stdio.h"void main(){ int a,b;printf("\nplease input two int number:\n");scanf("%d %d",&a,&b);printf("%d+%d=%d",a,b,a+b);printf("%d-%d=%d",a,b,a-b);printf("%d*%d=%d",a,b,a*b);printf("%d/%d=%f",a,b,a/b);getch();} ...