电子表代码,用C语言写的,可以显示系统时间和年月日,而且可以改变时间!

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/*** 与系统时间严格同步 并且可调时间 的电子表 ( MADE IN 127 ) ***/   /*** ! 在程序运行过程中不要切换窗口,否则,会出错 . ***/ #include<graphics.h> #include<math.h> #include<time.h> #define STEP 6.283183/60 #define PI 3.141592 #define X 307 #define Y 150          /*** 中心坐标 ***/ #define R 100 #define R_OUT (R+4)    /*** 内外半径 ***/ #define R_S (R-20) #define R_M (R-35) #define R_H (R-50)     /*** 各指针半径 ***/ #define MIN 60                 /*** 设定延时 (分钟) ***/ #define C_I 9 int HH=0,MM=0; main()  {   int gd=DETECT,gm,second,record_s,minite,record_m,hour,i,pc=60;   time_t t; float temp; char ch='#';   int int_M=MIN;  pc=(MIN-int_M)*60;   initgraph (&gd,&gm,""); setbkcolor (0);   /*** 外观设计 ***/   circle (X,Y,R); setfillstyle (1,2); floodfill (X,Y,15);   circle (X,Y,R_OUT); setfillstyle (1,8); floodfill (X+R_OUT-1,Y,15);   rectangle (X-2,Y-R+8-4,X+2,Y-R+8+4);   rectangle (X-2,Y+R-8-4,X+2,Y+R-8+4);   rectangle (X-R+8-4,Y-2,X-R+8+4,Y+2);   rectangle (X+R-8-4,Y-2,X+R-8+4,Y+2);   for (i=1;i<=60;i++)    if (i!=15&&i!=30&&i!=45&&i!=60)     if (i%5!=0) circle (X+(R-10)*cos(i*STEP),Y+(R-10)*sin(i*STEP),1);     else circle (X+(R-10)*cos(i*STEP),Y+(R-10)*sin(i*STEP),2);   rectangle (X+R_OUT,Y-6,X+R_OUT+6,Y+6);   setfillstyle (1,8); floodfill (X+R_OUT+3,Y,15);   temp=R_OUT*0.866;   line (X-R_OUT/2-5,Y-temp+2,X-R_OUT/2,Y-temp-30);   line (X-R_OUT/2+5,Y-temp-2,X-R_OUT/2+5,Y-temp-30);   line (X+R_OUT/2-5,Y-temp-2,X+R_OUT/2-5,Y-temp-30);   line (X+R_OUT/2+5,Y-temp+2,X+R_OUT/2,Y-temp-30);   line (X-R_OUT/2,Y-temp-30,X-R_OUT/2+5,Y-temp-30);   line (X+R_OUT/2-5,Y-temp-30,X+R_OUT/2,Y-temp-30);   line (X-R_OUT/2+5,Y-temp-25,X+R_OUT/2-5,Y-temp-25);   line (X-R_OUT/2+5,Y-temp-22,X+R_OUT/2-5,Y-temp-22);   floodfill (X-R_OUT/2-2,Y-temp,15);   floodfill (X+R_OUT/2+2,Y-temp,15);   floodfill (X,Y-R_OUT-10,15);   line (X-R_OUT/2-5,Y+temp-2,X-R_OUT/2,Y+temp+30);   line (X-R_OUT/2+5,Y+temp+2,X-R_OUT/2+5,Y+temp+30);   line (X+R_OUT/2-5,Y+temp+2,X+R_OUT/2-5,Y+temp+30);   line (X+R_OUT/2+5,Y+temp-2,X+R_OUT/2,Y+temp+30);   line (X-R_OUT/2,Y+temp+30,X-R_OUT/2+5,Y+temp+30);   line (X+R_OUT/2-5,Y+temp+30,X+R_OUT/2,Y+temp+30);   line (X-R_OUT/2+5,Y+temp+25,X+R_OUT/2-5,Y+temp+25);   line (X-R_OUT/2+5,Y+temp+22,X+R_OUT/2-5,Y+temp+22);   floodfill (X-R_OUT/2-2,Y+temp,15);   floodfill (X+R_OUT/2+2,Y+temp,15);   floodfill (X,Y+R_OUT+10,15);   for (i=1;i<=MIN*60+1;i++)   /*** 该循环严格一秒一次 ( 捕捉系统时间 ) ***/    {     setcolor (15);     circle (X,Y,5);  circle (X,Y,2); setfillstyle (1,0); floodfill (X,Y,15);     settextstyle (2,0,0); setcolor (8); outtextxy (X-13,Y-52,"FIYTA");     outtextxy (X-30,Y+35,"MADE IN 127"); setcolor (2);     time (&t);      /*** 获取系统时间 ***/     hour=(ctime(&t)[11]-'0')*10+(ctime(&t)[12]-'0');     minite=(ctime(&t)[14]-'0')*10+(ctime(&t)[15]-'0');     second=(ctime(&t)[17]-'0')*10+(ctime(&t)[18]-'0');     if (ch==C_I) { HH=HH-hour; MM=MM-minite; }     hour=(hour+HH)%24; minite=(minite+MM)%60;     window (22,22,80,22); printf (" The current time is  ");     if (hour<10) printf ("0"); printf ("%d : ",hour);     if (minite<10) printf ("0"); printf ("%d : ",minite);     if (second<10) printf ("0"); printf ("%d",second);     window (35,20,80,20);     printf (" "); if (int_M<10) printf ("0"); printf ("%d : ",int_M);     if (pc<10) printf ("0"); printf ("%d ",pc);     record_m=minite;     hour=10*hour+minite/6-30;     minite=2*minite+second/30-30;     second-=15; record_s=second;     setcolor (0);     /*** 写指针 ***/     line (X+7*cos(PI+hour*STEP/2),Y+7*sin(PI+hour*STEP/2),X+R_H*cos(hour*STEP/2),Y+R_H*sin(hour*STEP/2));     setcolor (1);     line (X+13*cos(PI+minite*STEP/2),Y+13*sin(PI+minite*STEP/2),X+R_M*cos(minite*STEP/2),Y+R_M*sin(minite*STEP/2));     setcolor (4);     line (X+20*cos(PI+second*STEP),Y+20*sin(PI+second*STEP),X+R_S*cos(second*STEP),Y+R_S*sin(second*STEP)); record_s=second;     ch='#';     while (second==record_s)   /*** 此循环用来 " 监视 " 系统秒针的变化 ***/      {       time (&t); second=(ctime(&t)[17]-'0')*10+(ctime(&t)[18]-'0')-15;       if (bioskey(1)&&(ch=getch()())==C_I||ch==27)        {  if (ch==27) { closegraph (); exit (0); }  window (22,22,80,22); printf ("     PLS enter the time : ");  window (48,22,80,22);  while (!bioskey(1))  { printf ("00:00   \b\b\b\b\b\b\b\b"); delay (25000); printf ("        \b\b\b\b\b\b\b\b"); delay (25000); }  scanf ("%d:%d:%d",&HH,&MM);  if (HH<=23&&HH>=0&&MM>=0&&MM<=59) break; else { ch='#'; HH=0; MM=0; }       }      }     setcolor (2);      /*** 覆盖指针 ( 由秒控制 ) ***/     if ((record_m*60+60+second+15)%360==0||ch==C_I)      line (X+7*cos(PI+hour*STEP/2),Y+7*sin(PI+hour*STEP/2),X+R_H*cos(hour*STEP/2),Y+R_H*sin(hour*STEP/2));     if ((second+15)%30==0||ch==C_I)      line (X+13*cos(PI+minite*STEP/2),Y+13*sin(PI+minite*STEP/2),X+R_M*cos(minite*STEP/2),Y+R_M*sin(minite*STEP/2));     if (i!=60*MIN+1||ch==C_I)      line (X+20*cos(PI+record_s*STEP),Y+20*sin(PI+record_s*STEP),X+R_S*cos(record_s*STEP),Y+R_S*sin(record_s*STEP));     if (pc==0&&int_M!=0) pc=60; pc--; if (pc==59) int_M--;    }   window (20,22,80,22);   printf (" The watch time out! Press any key ... "); getch() ();   closegraph ();  }
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