林中誠 程式設計 20121106 練習一 #include

#include

int main()
{
int a,b,g;
int e;

int aaa(int, int);
int sss(int, int);
int mmm(int, int);
int ddd(int, int);

printf("1. 加\n");
printf("2. 減\n");
printf("3. 乘\n");
printf("4. 除\n");
printf("---------------\n");

printf("請輸入二個數:");
scanf("%d %d",&a,&b);
printf("choose Function:");
scanf("%d",&e);

switch(e)
{
case 1:
g=aaa(a,b);
printf("The result is = %d\n",g);
break;

case 2:
g=sss(a,b);
printf("The result is = %d\n",g);
break;

case 3:
g=mmm(a,b);
printf("The result is = %d\n",g);
break;

case 4:
g=ddd(a,b);
printf("The result is = %d\n",g);
break;
default:
printf("選項錯誤 %d\n",g);
}

system("pause");
return 0;
}





int aaa(int x,int y)
{
return(x+y);
}

int sss(int x,int y)
{
return(x-y);
}

int mmm(int x,int y)
{
return(x*y);
}

int ddd(int x,int y)
{
return(x/y);
}
林中誠 程式設計 20121106 練習二 #include

#include

int main()
{
int a,b,g;
int e;


int aaa(int, int);
int sss(int, int);
int mmm(int, int);
int ddd(int, int);

printf("1. 加\n");
printf("2. 減\n");
printf("3. 乘\n");
printf("4. 除\n");
printf("---------------\n");

printf("請輸入二個數:");
scanf("%d %d",&a,&b);
printf("choose Function:");
scanf("%d",&e);

if (e==1)
{
g=aaa(a,b);
printf("The result is = %d",g);
}
else if (e==2)
{
g=sss(a,b);
printf("The result is = %d",g);
}
else if (e==3)
{
g=mmm(a,b);
printf("The result is = %d",g);
}
else if (e==4)
{
g=ddd(a,b);
printf("The result is = %d",g);
}
else
printf("輸入錯誤 %d\n",e);


system("pause");
return 0;
}





int aaa(int x,int y)
{
return(x+y);
}

int sss(int x,int y)
{
return(x-y);
}

int mmm(int x,int y)
{
return(x*y);
}

int ddd(int x,int y)
{
return(x/y);
}