哇咔咔，今(那)天第二个程序——指针时钟（1.0）

效果图：（其实还可以再美观一点 o(∩_∩)o 。。。）

/********************************************
 * 程序名称：MR.DUAN 的模拟时钟
 * 作　　者：WindAutumn <duanxu@outlook.com>
 * 最后修改：2012-8-9-PM
 * 版 本 号：1.0
 *
 * 以后有空再修改
 * *****************************************/

#include<stdio.h>
#include<Windows.h>
#include<time.h>
#include<math.h>

#define MAXWIDE 50
#define MAXHIGH 24
#define CENTER_X 25
#define CENTER_Y 12
#define CALENDA_Y_OFFSET 1
#define TIME_OFFSET_X  MAXWIDE + 1
#define TIME_OFFSET_Y CALENDA_Y_OFFSET + 13
#define PI 3.1415926

void InitScreen(HANDLE hClock);
void HideCursor(HANDLE hClock);
void GotoXY(HANDLE hClock, int x, int y);
void PrintCalendar(HANDLE hClock, int x, int y, time_t * p_rawtime);
void PrintClock(HANDLE hClock, time_t * p_rawtime);
void PrintTime(HANDLE hClock, time_t * p_rawtime);

void main()
{
    time_t rawtime = time(0);

    HANDLE hClock = GetStdHandle(STD_OUTPUT_HANDLE);
    system("color 7b");
    SetConsoleTitle("MR.DUAN 的时钟");
    HideCursor(hClock);
    InitScreen(hClock);
    PrintCalendar(hClock, MAXWIDE+1, CALENDA_Y_OFFSET, &rawtime);

    PrintClock(hClock, &rawtime);
}

void InitScreen(HANDLE hClock)            // 打印周围红框框
{
    int i;

    SetConsoleTextAttribute(hClock, FOREGROUND_INTENSITY | FOREGROUND_RED |
                            BACKGROUND_BLUE | BACKGROUND_GREEN | BACKGROUND_RED);                    // 红色字体，白色背景
    GotoXY(hClock, 0, 0);
    printf("╔");
    for(i=1; i<(MAXWIDE-1)/2; i++)
        printf("═");
    printf("╗");

    for(i=1; i< MAXHIGH; i++)
    {
        GotoXY(hClock, 0, i);
        printf("║");
        GotoXY(hClock, MAXWIDE-2, i);
        printf("║");
    }

    GotoXY(hClock, 0, MAXHIGH);
    printf("╚");
    for(i=1; i<(MAXWIDE-1)/2; i++)
        printf("═");
    printf("╝");

    GotoXY(hClock, 0, 0);
}

void HideCursor(HANDLE hClock)
{
    CONSOLE_CURSOR_INFO cursor_info = {1, 0};
    SetConsoleCursorInfo(hClock, &cursor_info);
}

void GotoXY(HANDLE hClock, int x, int y)
{
    COORD coord;
    coord.X = x;
    coord.Y = y;
    SetConsoleCursorPosition(hClock, coord);
}

void PrintCalendar(HANDLE hClock, int x, int y,  time_t * p_rawtime)
{
    int i;
    struct tm * timenow = localtime(p_rawtime);
    int year = timenow->tm_year+1900 , years;
    int month = timenow->tm_mon + 1;
    int day = timenow->tm_mday;
    int week,centry;

    int mon[12]= {31,28,31,30,31,30,31,31,30,31,30,31};
    if(year%400==0||year%4==0&&year%100!=0)
        mon[1]++;
    if ( month < 3 )
    {
        year -= 1;
        month += 12;
    }
    centry = year/100;
    years = year-centry*100;
    week = (centry/4)-2*centry+(years+years/4)+(26*(month+1)/10);
    week = (week%7+7)%7;

    GotoXY(hClock, x,y++);
    printf("Sun Mon Tue Wed Thu Fri Sat");
    GotoXY(hClock, x,y);
    for(i=0; i<week; i++)
        printf("    ");
    for(i=1; i<=mon[month-1]; i++)
    {
        if(day==i)
        {
            SetConsoleTextAttribute(hClock,FOREGROUND_INTENSITY | FOREGROUND_BLUE |
                                    BACKGROUND_BLUE | BACKGROUND_GREEN | BACKGROUND_RED);
            printf("%3d ",i++);
            SetConsoleTextAttribute(hClock,FOREGROUND_INTENSITY | FOREGROUND_RED |
                                    BACKGROUND_BLUE | BACKGROUND_GREEN | BACKGROUND_RED);
        }
        printf("%3d ",i);
        if((i+week)%7==0)
            GotoXY(hClock, x,y+=2);
    }
}

void PrintClock(HANDLE hClock, time_t * p_rawtime)
{
    struct tm * timenow = localtime(p_rawtime);
    int board_degree=0, hour_degree=0, min_degree=0, sec_degree=0,i,R=11;

    SetConsoleTextAttribute(hClock,FOREGROUND_INTENSITY | FOREGROUND_BLUE |
                            BACKGROUND_BLUE | BACKGROUND_GREEN | BACKGROUND_RED);

    for(i=1; i<=12; i++)                        // 打印周围的数字1-12
    {
        GotoXY(hClock,CENTER_X + R*2*sin(PI*i/6), CENTER_Y - R*cos(PI*i/6));
        printf("%d",i);
    }

    while(1)
    {
        while(*p_rawtime != time(0))
        {
            *p_rawtime = time(0);
            timenow = localtime(p_rawtime);
            hour_degree = timenow->tm_hour % 12 * 30;
            min_degree  = timenow->tm_min  * 6;
            sec_degree  = timenow->tm_sec  * 6;

            PrintTime(hClock, p_rawtime);

            for(i=1; i<11; i++)
            {
                SetConsoleTextAttribute(hClock,FOREGROUND_INTENSITY | FOREGROUND_BLUE |
                                        BACKGROUND_BLUE | BACKGROUND_GREEN | BACKGROUND_RED);
                GotoXY(hClock,CENTER_X + i*2*sin(PI*(sec_degree-6)/180), CENTER_Y - i*cos(PI*(sec_degree-6)/180));
                printf(" ");
                GotoXY(hClock,CENTER_X + i*2*sin(PI*sec_degree/180), CENTER_Y - i*cos(PI*sec_degree/180));
                printf("+");
            }
            for(i=1; i<8; i++)
            {
                SetConsoleTextAttribute(hClock,FOREGROUND_INTENSITY | FOREGROUND_GREEN |
                                        BACKGROUND_BLUE | BACKGROUND_GREEN | BACKGROUND_RED);
                if(0==timenow->tm_sec)
                {
                    GotoXY(hClock,CENTER_X + i*2*sin(PI*(min_degree-6)/180), CENTER_Y - i*cos(PI*(min_degree-6)/180));
                    printf(" ");
                }
                GotoXY(hClock,CENTER_X + i*2*sin(PI*min_degree/180), CENTER_Y - i*cos(PI*min_degree/180));
                printf("*");
            }
            for(i=1; i<5; i++)
            {
                SetConsoleTextAttribute(hClock,FOREGROUND_INTENSITY | FOREGROUND_RED |
                                        BACKGROUND_BLUE | BACKGROUND_GREEN | BACKGROUND_RED);
                if(0==timenow->tm_min)
                {
                    GotoXY(hClock,CENTER_X + i*2*sin(PI*(hour_degree-30)/180), CENTER_Y - i*cos(PI*(hour_degree-30)/180));
                    printf(" ");
                }
                GotoXY(hClock,CENTER_X + i*2*sin(PI*hour_degree/180), CENTER_Y - i*cos(PI*hour_degree/180));
                printf("#");

            }
        }
    }
}

void PrintTime(HANDLE hClock, time_t * p_rawtime)
{
    struct tm * timenow = localtime(p_rawtime);
    SetConsoleTextAttribute(hClock,FOREGROUND_INTENSITY | FOREGROUND_BLUE |
                            BACKGROUND_BLUE | BACKGROUND_GREEN | BACKGROUND_RED);
    GotoXY(hClock,TIME_OFFSET_X,TIME_OFFSET_Y);
    printf("当前系统时间：");
    GotoXY(hClock,TIME_OFFSET_X,TIME_OFFSET_Y + 1);
    printf("%4d 年 %2d 月 %2d 日",1900+timenow->tm_year,timenow->tm_mon,timenow->tm_mday);
    GotoXY(hClock,TIME_OFFSET_X,TIME_OFFSET_Y + 2);
    printf("%4d 时 %2d 分 %2d 秒",timenow->tm_hour,timenow->tm_min,timenow->tm_sec);
}