第二十二课作业，重写万年历(结构体)

wai1216

简单实现了一下基本功能，结构体的使用。
大家一定要看校长的视频，后面就一下通了的感觉。
第一个是wnl.c

[C] 纯文本查看 复制代码

#include "data.h"

void main()
{
        Data obj;
        intlist(&obj);
        _getchar(&obj); 
}

---------------
第二个是data.h

[C] 纯文本查看 复制代码

typedef struct 
{
    int y;
    int m;
    int d;
}Data;

void intlist(Data * obj);
void showwnl(Data * obj);
void _getchar(Data * obj);

---------------
第三个是data.c

[C] 纯文本查看 复制代码

#include "data.h"
int a[2][13] = { { 0,31,28,31,30,31,30,31,31,30,31,30,31 },{ 0,31,29,31,30,31,30,31,31,30,31,30,31 } };
char c[7] = { 'S','M','T','W','T','F','S' };
char d[] = {'w','s','a','d','q'};

int isleapyear(Data * obj)
{
        return (!(obj->y % 4) && (obj->y % 100)) || !(obj->y % 400);
}

int check(Data * obj)
{
        int lp = isleapyear(obj);
        return (obj->m > 0 && obj->m <= 12) && (obj->d >0 && obj->d <= a[lp][obj->m]);
}

int caldays(Data * obj)
{
        int days = 0;
        Data first = { 2000,0,0 };
        for (; first.y < obj->y || first.m < obj->m; first.m++)
        {
                if (first.m == 13)
                {
                        first.m = 0;
                        first.y++;
                }
                days += *(*(a + isleapyear(&first)) + first.m);
        }
        return days;
}

void intlist(Data * obj)
{
        while (1)
        {
                printf("\nPlease enter the number:");
                scanf("%d%d%d", &obj->y, &obj->m, &obj->d);
                if (check(obj))
                {
                        break;
                }
        }
}

void showwnl(Data * obj)
{
        int i = 0, days = 0, k = 0, n = 1;
        printf("func:w,s,a,d   quit:q\n");
        days = caldays(obj);
        for (i = 0; i < 7; i++)
        {
                printf("%5c", *(c + i));
        }
        printf("\n");
        for (i = 1, k = 1; k <= *(*(a + isleapyear(obj)) + obj->m); i++, n++)
        {
                if (i <= (days + 6) % 7)
                {
                        printf("%5c", 32);
                }
                else
                {
                        if (k == obj->d)
                        {
                                printf("[%3d]", k++);
                        }
                        else
                        {
                                printf("%5d", k++);
                        }
                }
                if (!(n % 7))
                {
                        printf("\n");
                }
        }
        printf("\nYou put the number:%d-%d-%d\n",obj->y,obj->m,obj->d);
        printf("Tell me the next step is:");
}

int choose(char s)
{
        int i = 0;
        for(i = 0; i < 5; i++)
        {
                if(s == *(d + i))
                {
                        return i;
                }
        }
        return -1;
}

int returncho(Data * obj,int n)
{
        int t = 1;
        switch(n)
        {
                case 0:obj->y--;break;
                case 1:        obj->y++;break;
                case 2:obj->m--;
                if (obj->m <= 0)
                {
                        obj->m = 12;
                        obj->y--;
                }
                break;
                case 3:
                obj->m++;
                if (obj->m > 12)
                {
                        obj->m  = 1;
                        obj->y++;
                }
                break;
                case 4:t = 0;break;
        }
        return t;
}

void _getchar(Data * obj)
{
        int t = 1;
        char a;
        while (t)
        {
                clrscr();
                showwnl(obj);
                a = getch();
                t = returncho(obj,choose(a));
        }
        clrscr();
        printf("Thank you very much!enjoy it!   By:wai1216\n");
}