case條件選擇語(yǔ)句
case條件選擇語(yǔ)句? 具體例題
qq_落花微夢(mèng)如雨_03608775
2018-03-20
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2018-03-22
#include <stdio.h>
int main( )
{
double a, b;
? char op;
? scanf("%lf%c%lf", &a, &op, &b);
? switch (op)
? {
? ? ? case ?'+':
? ? printf("%lf + %lf = %lf\n", a, b, a + b);
? break;
? case ?'-':
? ? printf("%lf - %lf = %lf\n", a, b, a - b);
? break;?
? case ?'*':
printf("%lf * %lf = %lf\n", a, b, a * b);
? break;
? case ?'/':
? if (b != 0)
? printf("%lf / %lf = %lf\n", a, b, a / b);
? else
? ? printf("除數(shù)不能是0! \n");
? break;
? }
}