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#include
#include
#include
void Menu(void)
{
printf(“1,加法 2,减法 3,乘法 4,除法 5,退出n”);
printf(“请选择题目类型:”);
}
int Plus(void)
{
int a, b;
a = rand() % 10 + 1;
b = rand() % 10 + 1;
printf(“%-2d + %-2d = “, a, b);
return a + b;
}
int Sub(void)
{
int a, b;
a = rand() % 10 + 1;
b = rand() % 10 + 1;
printf(“%-2d – %-2d = “, a, b);
return a – b;
}
int Mult(void)
{
int a, b;
a = rand() % 10 + 1;
b = rand() % 10 + 1;
printf(“%-2d * %-2d = “, a, b);
return a * b;
}
int Div(void)
{
int a, b;
while(a % b != 0)
{
a = rand() % 10 + 1;
b = rand() % 10 + 1;
}
printf(“%-2d / %-2d = “, a, b);
return a / b;
}
int Subject(int type)
{
switch(type)
{
case 1: return Plus();
case 2: return Sub();
case 3: return Mult();
case 4: return Div();
}
}
void Do(int type)
{
int count = 0, score = 0, key, answer;
while(count
{
key = Subject(type);
scanf(“%d”, &answer);
if(key == answer)
score += 10;
count++;
}
printf(“%dn”, score);
}
int main(void)
{
int type, score;
while(1)
{
Menu();
scanf(“%d”, &type);
if(type == 5) return 0;
Do(type);
system(“pause”);
system(“cls”);
}
}
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