用switch 語句實現簡單的計算器功能(要求從鍵盤輸入操作數和運算符)。
例如:輸入: 3 * 4
輸出:12
#include <stdio.h>
int main()
{
int a,b;
int result;
char ch;
printf ("please input:");
scanf ("%d %c %d",&a,&ch,&b);
switch (ch)
{
case '+':
result = a + b;
break;
case '-':
result = a - b;
break;
case '*':
result = a * b;
break;
case '/':
result = a / b;
break;
default :
printf ("lllegal operator!\n");
break;
}
printf ("out:%d\n",result);
return 0;
}