动态时钟的时间显示和修改

[dick78]

#include<stdio.h>
#include<dos.h>
#include<conio.h>
#include<math.h>
#include<graphics.h>
#define PI 3.1415926

int main()
{
int X=300,Y=250,R=100,RR=130;
int X_HOUR,X_MINUTE,X_SECOND;
int Y_HOUR,Y_MINUTE,Y_SECOND;
int X_DRAW=0,Y_DRAW=0,R_DRAW=120;
int NUM=0;
struct time T;
int gdriver=DETECT,gmode;
initgraph(&gdriver,&gmode,"D:\\Program Files\\TC\\BGI");
setlinestyle(0,1,3);
setcolor(LIGHTGRAY);
circle(X,Y,RR);
setlinestyle(0,1,1);
for(NUM=0;NUM<12;NUM++)
{
setcolor(11);
X_DRAW=X+R_DRAW*cos(NUM*2*PI/12);
Y_DRAW=Y+R_DRAW*sin(NUM*2*PI/12);
circle(X_DRAW,Y_DRAW,5);
setfillstyle(1,11);
if((NUM%3)==0)floodfill(X_DRAW,Y_DRAW,11);

}
while(!kbhit())
{
gettime(&T);
X_HOUR=X+(R/2)*cos(T.ti_hour*2*PI/12+T.ti_min*2*PI/(60*12)-PI/2);
X_MINUTE=X+R*cos(T.ti_min*2*PI/60-PI/2)*3/4;
X_SECOND=X+R*cos(T.ti_sec*2*PI/60-PI/2);
Y_HOUR=X+(R/2)*sin(T.ti_hour*2*PI/12+T.ti_min*2*PI/(60*12)-PI/2);
Y_MINUTE=Y+R*sin(T.ti_min*2*PI/60-PI/2)*3/4;
Y_SECOND=Y+R*sin(T.ti_sec*2*PI/60-PI/2);
setcolor(YELLOW);
line(X,Y,X_HOUR,Y_HOUR);
setcolor(RED);
line(X,Y,X_MINUTE,Y_MINUTE);
setcolor(BLUE);
line(X,Y,X_SECOND,Y_SECOND);
delay(10000);
setcolor(BLACK);
line(X,Y,X_HOUR,Y_HOUR);
line(X,Y,X_MINUTE,Y_MINUTE);
line(X,Y,X_SECOND,Y_SECOND);
}
getch();
closegraph();
return 0;
}


我想在此基础上修改时间，怎么做啊？

[赵4老师]

仅供参考

#include <graphics.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dos.h>
#include <conio.h>
#include <time.h>
#include <math.h>
time_t t;
char timestr1[30];//DDD MMM dd hh:mm:ss YYYY
char timestr2[30];//DDD MMM dd hh:mm:ss YYYY
char hhmmss[9];
int graphdriver,graphmode,page;
int i,xo,yo,r0,r1,r2,r3,r4,r5,r6,r7;
int x1,y1,x2,y2;
int hh,mm,ss;
double c,s;
int xasp,yasp;
void main() {
    xo=60;yo=60;
    r0=5; //轴
    r1=20;//时针
    r2=36;//分针
    r3=45;//秒针
    r4=50;//时刻度
    r5=53;//分刻度
    r6=55;//刻度外
    r7=59;//表盘
    graphdriver=VGA;
    graphmode=VGAMED;
    initgraph(&graphdriver,&graphmode,"D:\\BC\\BGI");
    getaspectratio(&xasp, &yasp);
    page=0;
    timestr2[0]=0;
    while (1) {
        if (kbhit()) break;
        time(&t);
        strcpy(timestr1,ctime(&t));
        if (strcmp(timestr1,timestr2)) {
            strcpy(timestr2,timestr1);
            hh=atoi(timestr2+11);
            mm=atoi(timestr2+14);
            ss=atoi(timestr2+17);
            setvisualpage(page);
            setactivepage(1-page);
            cleardevice();
            sprintf(hhmmss,"%02d:%02d:%02d",hh,mm,ss);
            outtextxy(28,0,hhmmss);
            pieslice(xo,yo,0,360,r0);
            circle(xo,yo,r7);
            for (i=0;i<60;i++) {
                c=cos(i*6*3.14159265/180);
                s=sin(i*6*3.14159265/180)*xasp/yasp;
                if (0==(i%5)) {
                    x1=xo+r4*c;
                    y1=yo+r4*s;
                } else {
                    x1=xo+r5*c;
                    y1=yo+r5*s;
                }
				x2=xo+r6*c;
				y2=yo+r6*s;
				line(x1,y1,x2,y2);
				if (((hh%12)*5+mm/12+45)%60==i) {
					x2=xo+r1*c;
					y2=yo+r1*s;
					setlinestyle(0,-1,3);
					line(xo,yo,x2,y2);
					setlinestyle(0,-1,1);
				}
				if ((mm+45)%60==i) {
					x2=xo+r2*c;
					y2=yo+r2*s;
					setlinestyle(0,-1,3);
					line(xo,yo,x2,y2);
					setlinestyle(0,-1,1);
				}
				if ((ss+45)%60==i) {
					x2=xo+r3*c;
					y2=yo+r3*s;
					line(xo,yo,x2,y2);
				}
			}
			page=1-page;
		}
        delay(100);
    }
    getch();
    closegraph();
}

[dick78]

自己顶一下。

[707wk]

这样行不？

#include<stdio.h>
#include<dos.h>
#include<conio.h>
#include<math.h>
#include<graphics.h>

#define PI 3.1415926

void set_black_bg(struct time T,int X,int Y,int R,int RR)
{
    int X_HOUR,X_MINUTE,X_SECOND ;
    int Y_HOUR,Y_MINUTE,Y_SECOND ;
    X_HOUR=X+(R/2)*cos(T.ti_hour*2*PI/12+T.ti_min*2*PI/(60*12)-PI/2);
    X_MINUTE=X+R*cos(T.ti_min*2*PI/60-PI/2)*3/4 ;
    X_SECOND=X+R*cos(T.ti_sec*2*PI/60-PI/2);
    Y_HOUR=X+(R/2)*sin(T.ti_hour*2*PI/12+T.ti_min*2*PI/(60*12)-PI/2);
    Y_MINUTE=Y+R*sin(T.ti_min*2*PI/60-PI/2)*3/4 ;
    Y_SECOND=Y+R*sin(T.ti_sec*2*PI/60-PI/2);
    setcolor(BLACK);
    line(X,Y,X_HOUR,Y_HOUR);
    line(X,Y,X_MINUTE,Y_MINUTE);
    line(X,Y,X_SECOND,Y_SECOND);
}

int main()
{
    int X=300,Y=250,R=100,RR=130 ;
    int X_HOUR,X_MINUTE,X_SECOND ;
    int Y_HOUR,Y_MINUTE,Y_SECOND ;
    int X_DRAW=0,Y_DRAW=0,R_DRAW=120 ;
    int NUM=0 ;
    struct time T ;
    struct time temp ;
    int gdriver=DETECT,gmode ;
    initgraph(&gdriver,&gmode,"D:\\Program Files\\TC\\BGI");
    setlinestyle(0,1,3);
    setcolor(LIGHTGRAY);
    circle(X,Y,RR);
    setlinestyle(0,1,1);
    for(NUM=0;NUM<12;NUM++)
    {
        setcolor(11);
        X_DRAW=X+R_DRAW*cos(NUM*2*PI/12);
        Y_DRAW=Y+R_DRAW*sin(NUM*2*PI/12);
        circle(X_DRAW,Y_DRAW,5);
        setfillstyle(1,11);
        if((NUM%3)==0)floodfill(X_DRAW,Y_DRAW,11);
        
    }
    temp.ti_sec=100 ;
    while(!kbhit())
    {
        gettime(&T);
        if(temp.ti_sec!=T.ti_sec)
        {
            set_black_bg(temp,300,250,100,130);
            temp=T ;
            X_HOUR=X+(R/2)*cos(T.ti_hour*2*PI/12+T.ti_min*2*PI/(60*12)-PI/2);
            X_MINUTE=X+R*cos(T.ti_min*2*PI/60-PI/2)*3/4 ;
            X_SECOND=X+R*cos(T.ti_sec*2*PI/60-PI/2);
            Y_HOUR=X+(R/2)*sin(T.ti_hour*2*PI/12+T.ti_min*2*PI/(60*12)-PI/2);
            Y_MINUTE=Y+R*sin(T.ti_min*2*PI/60-PI/2)*3/4 ;
            Y_SECOND=Y+R*sin(T.ti_sec*2*PI/60-PI/2);
            setcolor(YELLOW);
            line(X,Y,X_HOUR,Y_HOUR);
            setcolor(RED);
            line(X,Y,X_MINUTE,Y_MINUTE);
            setcolor(BLUE);
            line(X,Y,X_SECOND,Y_SECOND);
        }
    }
    getch();
    closegraph();
    return 0 ;
}