다른님들이 switch에 문제잇고 오타나서 그래서 고쳣는데 안돼요
에러:parse error before 'first'
warning: data definition has no type or strorage class
parse error before 'resdisp'
warning: data definition has no type or strorage class
#include <stdio.h>
viod first();
double add();
double sub();
double mul();
double div();
viod resdisp(double);
int main()
{
int selection;
double result;
first();
scanf("%d", &selection);
switch(selection) {
case1 : result = add();
break;
case2 : result = sub();
break;
case3 : result = mul();
break;
case4 : result = div();
break;
}
resdisp(result);
return 0;
}
viod first()
{
printf("=======SACE ACADEMY=========\n\n");
printf("1번\n\n");
printf("2번\n\n");
printf("3번\n\n");
printf("4번\n\n");
printf("SACEACADEMY 의 권한으로 사용합니다 만든이 나.");
}
double add()
{
double a, b, res;
printf("두개숫자입력:");
scanf("%lf%lf", &a, &b);
res=a+b;
return res;
}
double sub()
{
double a, b, res;
printf("두개숫자입력:");
scanf("%lf%lf", &a, &b);
res=a-b;
return res;
}
double mul()
{
double a, b, res;
printf("두개숫자입력:");
scanf("%lf%lf", &a, &b);
res=a*b;
return res;
}
double div()
{
double a, b, res;
printf("두개숫자입력:");
scanf("%lf%lf", &a, &b);
res=a/b;
return res;
}
viod resdisp(double val)
{
printf("결과는 %lf입니다 한재문 최고.", val);
} |
3204, 
1/161 
pmj0914
