|部落格班級 | https://edu.cnblogs.com/campus/ahgc/AHPU-SE-19/ |
|作業要求 | https://edu.cnblogs.com/campus/ahgc/AHPU-SE-19/homework/11376|
|作業目標 | 寫一個能自動生成小學四則運算題目的程式 |
|學號 | 3190704126|
程式碼如下：

include<stdio.h>

include<Windows.h>

include<time.h>

void main()
{
int a, b, c, d,i,m,n;
float p, q;
srand(unsigned( time(NULL)));
for (i = 0; i < 30; i++)
{
a = rand() % 100;
b = rand() % 100;
c = rand() % 5;
switch (c)
{
case 0: printf("%d + %d =\n", a, b);
break;
case 1:if (a < b)
{
d = a;
a = b;
b = d;
}
printf("%d - %d =\n", a, b);
break;
case 2:printf("%d * %d =\n", a, b);
break;
case 3:
while (b == 0)
{
b = rand() % 100;
}
printf("%d / %d =\n", a, b);
break;
case 4:
a = rand() % 100;
b = rand() % 100;
m = rand() % 100;
n = rand() % 100;
c = rand() %4 ;
while (b == 0)
{
b = rand() % 100;
}
while (n == 0)
{
n = rand() % 100;
}
if (a > b)
{
d = a;
a = b;
b = d;
}
if (m > n)
{
d = m;
m = n;
n = d;
}
switch (c)

         {
         case 0:printf("%d/%d + %d/%d =\n", a, b, m, n);
             break;
         case 1:
             p = (float)a / (float)b;
             q = (float)m / (float)n;
             if (p < q)
             {
                 d = a;
                 a = m;
                 m = d;
                 d = b;
                 b = n;
                 n = d;
             }
             printf("%d/%d - %d/%d =\n", a,b,m,n);
             break;
         case 2:printf("%d/%d * %d/%d =\n", a, b, m, n);
             break;
         case 3:
             a = rand() % 100;
             b = rand() % 100;
             m = rand() % 100;
             n = rand() % 100;
             c = rand() % 4;
             while (m == 0)
             {
                 m = rand() % 100;
             }
             printf("%d/%d / %d/%d =\n", a, b, m, n);
             break;
         }
     }
 }
 system("pause");
 

}