代码复审

我审查的是自己的代码：

#include<stdio.h>
#include<stdlib.h>
#include<time.h>
#include<math.h>
void Shengcheng();
void Simple();
void real();
void result();
int MaxGYS(int a, int b);
int system(const char *string);

int main(void)
{
    int n;
Loop1: printf("\n\n\n\n\t\t\t耿丹13计科-1胡新宇\n\n\t\t\t[1] 小学数学无分数十道四则运算练习题\n\n\t\t\t[2]小学数学分数四则运算练习题\n\n\t\t\t[3] 退出程序\n\n\t\t\t请输入相应的选项,按回车键确定:");
    scanf_s("%d", &n);
    system("cls");
    if (n == 1)
        Shengcheng();//到整数十道题界面
    else
        if (n == 2)
            result();//分数界面
    else
        if (n == 3)
        {
            printf("\n\n\n\n\n\n\t\t再见\n\n\t\t");//退出界面
            return 0;
        }
        else
            printf("输入错误请重新输入");//错误提示
    goto Loop1;//回到主界面
    return 0;
}

void Shengcheng()//整数十道运算随机题
{
    int i, a, b, p, q, r, c, sum = 0, d = 0, e = 0;
    srand((unsigned)time(NULL));
    printf("请做下面十道四则运算题，加油哦！\n\n");
    for (i = 0; i < 10; i++)
   {
        a = rand() % 50;
        b = rand() % 50;
        p = rand() % 50;
        q = rand() % 50;
        r = rand() % 50;
        while (r == 0)
        {
            i--;
        }
        while (r != 0)
        {
            printf("请输入你的答案：%d+%d-%d*%d/%d=", a, b, p, q, r);
            scanf_s("%d", &c);
            printf("\n");
            if ((a + b - p*q / r) == c)

            {
                printf("恭喜你答对了！干的不错！\n\n");
                sum = sum + 10;
                e = e + 1;
            }
            else
            {
                printf("答案错误！请继续努力！\n\n");
                d = d + 1;
            }
            break;//返回
        }
        continue;
    }
    printf("你总共答对了%d道题，答错了%d道题。\n\n", e, d);

    printf("你的得分为：%d分继续努力哟！\n\n", sum);
    return ;
}

void Simple()
{
    int m, b, c, d, t;
    m = rand() % 3 + 1;
    b = rand() % 20 + 1;
    c = rand() % 20 + 1;
    switch (m)
    {
    case 1: {
        d = b + c;
        printf("%d+%d=\t\t\t\t\t\t\t\t\t%d\n", b, c, d);
    }break;
    case 2: {
        if (b>c)
        {
            t = b;
            b = c;
            c = t;
        }
        d = b - c;
        printf("%d-%d=\t\t\t\t\t\t\t\t\t%d\n", b, c, d);
    }break;
    case 3: {
        d = b*c;
        m = rand() % 2 + 1;
        if (m == 1)
            printf("%d*%d=\t\t\t\t\t\t\t\t\t%d\n", b, c, d);
        else
            printf("%d/%d=\t\t\t\t\t\t\t\t\t%d\n", d, b, c);
    } break;
    }
    return;
}
void real()//分子分母
{
    int a, b, c, d, e, f, g, h, t;
    a = rand() % 4 + 1;
    b = rand() % 9 + 1;//第一个数字分子
    c = rand() % 9 + 1;//第一个数字分母
    d = rand() % 9 + 1;//第二个数字分子
    e = rand() % 9 + 1;//第二个数字分母
    if (b>c)
    {
        t = b;
        b = c;
        c = t;
    }
    if (d>e)
    {
        t = d;
        d = e;
        e = t;
    }
    switch (a)
    {
    case 1: {
        f = c*e;
        g = b*e + d*c;
        h = MaxGYS(g, f);
        f = f / h;
        g = g / h;
        printf("(%d/%d)+(%d/%d)=\t\t\t\t\t\t\t\t(%d/%d)\n", b, c, d, e, g, f);
    }break;
    case 2: {
        f = c*e;
        g = b*e - d*c;
        if (g>0)
        {
            h = MaxGYS(g, f);
            f = f / h;
            g = g / h;
            printf("(%d/%d)-(%d/%d)=\t\t\t\t\t\t\t\t(%d/%d)\n", b, c, d, e, g, f);
        }
        else
        {
            g = abs(g);
            h = MaxGYS(g, f);
            f = f / h;
            g = g / h;
            printf("(%d/%d)-(%d/%d)=\t\t\t\t\t\t\t\t(%d/%d)\n", d, e, b, c, g, f);
        }
    }break;
    case 3: {
        f = c*e;
        g = b*d;
        h = MaxGYS(g, f);
        f = f / h;
        g = g / h;
        printf("(%d/%d)*(%d/%d)=\t\t\t\t\t\t\t\t(%d/%d)\n", b, c, d, e, g, f);
    }break;
    case 4: {
        f = b*e;
        g = c*d;
        h = MaxGYS(g, f);
        f = f / h;
        g = g / h;
        printf("(%d/%d)/(%d/%d)=\t\t\t\t\t\t\t\t(%d/%d)\n", b, c, d, e, g, f);
    }
    default:break;
    }
    return;
}
int MaxGYS(int a, int b)//定义a,b中的最大值为整型变量
{
    int c, t;
    if (a<b)
    {
        t = a;
        a = b;
        b = t;
    }
    while (b != 0)
    {
        c = a%b;
        a = b;
        b = c;
    }
    return a;
}
void result()//分数四则随机题
{
    int m, i;
    for (i = 0; i<30; i++)
    {
        m = rand() % 2 + 1;
        if (m == 1)
            Simple();
        else
            real();
    }
    system("pause");
    system("cls");
    system("pause");
    system("cls");
    return  ;

}

　代码复审总结：

  代码基本上都是比较简单易懂，设计的很周全，可以选择不同的类型，但是程序还是有一定的缺陷，需要一些改进，但是在随机四则运算上可以很方便的的做出问题，在复审的时候发现了问题就是在出题后如果输入小数点的话这个程序就不会继续往下执行，其他整数都可运行出来，所以根据这个问题，可以进一步的修改代码，使这个软件更加的完善。