菜鸟的第一步

菜鸟的第一步

小学生计算器（对入口参数的完善还未完整）

#include<stdio.h>
#include<stdlib.h>
#include<time.h>
#define RANDOM(a,b) (rand()%( (b+1)-(a) )+(a) )
int suiji(void);
int total (void);
void start(void);
void shape1(void);
void shape2(void);
void shape3(void);
void shape4(void);
void shape5(void);
void judge_1(int reply, int produce, int flag, int *flag_one, int *yz_1, int *yz_1_1);
void judge_2(int reply, int produce, int *flag, int *yz_2, int *counter);
void judge_3(int reply_3, int produce_3, int *counter_3);
void judge_4(int reply_4, int produce_4, int *counter_4);
void judge_5(int reply_5, int produce_5, int *counter_5);
void judge_5_5(int rate_5, int *flag_5);
void JUDGE(int ret);
int main()
{
    int choose, firstflag=1;
    int ret;
    while(firstflag)
    {
        start();
        ret=scanf("%d", &choose);
        JUDGE(ret);
        switch(choose)
        {
            case 1:
                    shape1();
                    break;

            case 2:
                    shape2();
                    break;

            case 3:
                    shape3();
                    break;
            case 4:
                    shape4();
                    break;

            case 5:
                    shape5();
                    break;
            case 0:
                    firstflag= 0;
        }
        system("pause");
    }
    return 0;
}

void start(void)
{
    system("cls");
    srand(time(NULL));
    printf("1、随机产生 1-10 之间正整数，出乘法问题，直到学生答对为止\t\t\ttesk 1\n");
    printf("2、在任务 1 基础上，当学生答错时，最多给三次机会\t\t\t\ttesk 2\n");
    printf("3、在任务 1 基础上，连做 10 道乘法题，不给机会重做，统计总分、正确率\t\ttesk 3\n");
    printf("4、在任务 3 基础上，随机产生 10 道四则运算题，不给机会重做,统计总分、正确率\ttesk 4\n");
    printf("5、在任务 4 基础上，若回答正确率低于 75%，则再做 10 道题，直到正确率高于75%&为止\ttesk 5\n");
    printf("退出----------------------------------------------------------------------------exit 0\n");
}

void shape1(void)
{
    int a[1000]={0};
    int produce, reply, flag=1, i;
    int flag_one=0;
    int yz_1=0;
    int yz_1_1=0;
    int ret;
    while(flag)
    {
        for(i=0; i<2; i++)
        {
            a[i]=suiji();
        }
        produce= a[0]*a[1];
        ONE:
        printf("%d*%d= ?\n", a[0], a[1], produce);
        printf("please input your answer:");
        ret= scanf("%d", &reply);
        JUDGE(ret);
        judge_1(reply, produce, flag, &flag_one, &yz_1, &yz_1_1);
        if(yz_1==1 && yz_1_1==0)
            goto ONE;
        if(yz_1_1==1)
            break;
    }
}

void shape2(void)
{
    int a[1000]={0};
    int i;
    int reply, produce, counter, flag, yz_2;
    flag= 1, counter= 1, yz_2=0;
    while(flag)
    {
        for(i=0; i<2; i++)
        {
            a[i]=suiji();
        }
        produce= a[0]*a[1];
        printf("%d*%d= ?\n", a[0], a[1], produce);
        printf("please input your answer:");
        scanf("%d", &reply);
        judge_2(reply, produce, &flag, &yz_2, &counter);
        if(yz_2==1)
            break;
    }
}

void shape3(void)
{
    int a[1000]={0};
    int i, t;
    int counter_3, reply_3, rate_3, produce_3;
    int ret;
    counter_3=0;
    for(t=0; t<10; t++)
    {
        for(i=0; i<2; i++)
        {
            a[i]=suiji();
        }
        produce_3=a[0]*a[1];
        printf("%d*%d= ?\n", a[0], a[1], produce_3);
        printf("please input your answer:");
        ret= scanf("%d", &reply_3);
        JUDGE(ret);
        judge_3(reply_3, produce_3, &counter_3);

     }
    rate_3= counter_3;
    printf("%d %d%%\n", counter_3, rate_3);
}

void shape4(void)
{
    int a[1000]={0};
    int t, i, j;
    int counter_4, produce_4, reply_4, rate_4;
    char op, ops[] = { '+', '-', '*', '/' };
    int ret;
    counter_4=0;
    for(t=0; t<10; t++)
    {
        for(i=0; i<2; i++)
        {
            FOUR:
            a[i]=suiji();
            if(a[i]%2==0)
               goto FOUR;
        }
        op= ops[RANDOM(0,3)];
        if(op=='+')
            produce_4=a[0]+a[1];
        else if(op=='-')
        {
            if(a[0]<a[1])
                goto FOUR;
            else
                produce_4=a[0]-a[1];
        }
        else if(op=='*')
            produce_4=a[0]*a[1];
        else if(op=='/')
        {
            j=a[0]%a[1];
            if(a[0]<a[1] || j!=0)
                goto FOUR;
            else
                produce_4=a[0]/a[1];
        }
        printf("%d%c%d= ?\n", a[0], op, a[1], produce_4);
        printf("please input your answer:");
        ret=scanf("%d", &reply_4);
        JUDGE(ret);
        judge_4(reply_4, produce_4, &counter_4);
    }
        rate_4= counter_4;
        printf("%d %d%%\n", counter_4, rate_4);
}

void shape5(void)
{
    int a[1000]={0};
    int i, t, j;
    int counter_5, flag_5, produce_5, rate_5, reply_5;
    char op, ops[] = { '+', '-', '*', '/' };
    int ret;
    counter_5=0;
    flag_5= 1;
    while(flag_5)
    {
        for(t=0; t<10; t++)
        {
            for(i=0; i<2; i++)
            {
                FIVE:
                a[i]=suiji();
                if(a[i]%2==0)
                   goto FIVE;
            }
            op= ops[RANDOM(0,3)];
            if(op=='+')
                produce_5=a[0]+a[1];
            else if(op=='-')
            {
                if(a[0]<a[1])
                goto FIVE;
                produce_5=a[0]-a[1];
            }
            else if(op=='*')
                produce_5=a[0]*a[1];
            else if(op=='/')
            {
                j=a[0]%a[1];
                if(a[0]<a[1] || j!=0)
                    goto FIVE;
                else
                    produce_5=a[0]/a[1];
            }
            printf("%d%c%d= ?\n", a[0], op, a[1], produce_5);
            printf("please input your answer:");
            ret=scanf("%d", &reply_5);
            JUDGE(ret);
            judge_5(reply_5, produce_5, &counter_5);
        }
        rate_5= counter_5;
        printf("%d %d%%\n", counter_5, rate_5);
        judge_5_5(rate_5, &flag_5);
    }
}

int suiji(void)
{
    int a;
    a=rand()%10+1;
    return a;
}

int total(void)
{
    static int a=0;
    a+=10;
    return a;
}

void judge_1(int reply, int produce, int flag, int *flag_one, int *yz_1, int *yz_1_1)
{
    if(reply==produce && *flag_one==0)
    {
        printf("Right\n");
    }
    if(reply==produce && *flag_one!=0)
    {
        printf("Right\n");
        *yz_1_1=1;
    }
    if(reply!=produce)
    {
        printf("Wrong!Please try again\n");
        *flag_one=1;
        *yz_1=1;
    }
}

void judge_2(int reply, int produce, int *flag, int *yz_2, int *counter)
{
    if(reply==produce)
    {
        printf("Right\n");
    }
    else
    {
        if(*counter>2)
        {
            printf("Wrong! You have tried three times! Test over!\n");
            *flag=0;
            *yz_2=1;
        }
        else
        {
            printf("Wrong!Please try again\n");
            *counter=*counter+1;
        }
    }
}

void judge_3(int reply_3, int produce_3, int *counter_3)
{
    if(reply_3==produce_3)
    {
        printf("Right!\n");
        *counter_3=total();
    }
    else
    {
        printf("Wrong!\n");
    }
}

void judge_4(int reply_4, int produce_4, int *counter_4)
{
    if(reply_4==produce_4)
    {
        printf("Right!\n");
        *counter_4= total();
    }
    else
    {
        printf("Wrong!\n");
    }
}

void judge_5(int reply_5, int produce_5, int *counter_5)
{
    if(reply_5==produce_5)
    {
        printf("Right!\n");
        *counter_5= total();
    }
    else
    {
        printf("Wrong!\n");
    }
}

void judge_5_5(int rate_5, int *flag_5)
{
    if(rate_5>75)
    {
        printf("-----------------------------------------Good!\tOver!\n");
        flag_5= 0;
    }
    else
    {
        printf("-----------------------------------------You are lose!\tTry again!\n");
        system("pause");
    }
}

void JUDGE(int ret)
{
    if(ret!=1)
    {
        printf("Input dada quantity or format error!\n");
        fflush(stdin);
    }
}