用C语言编写倒计时程序

#include <stdio.h> #include <time.h> main() { clock_t start,end; int n,a,b,i; char c; printf("\n \n"); printf(" ***** * *** * *****\n"); printf(" * * * * * * * \n"); printf(" **** * * * * *****\n"); printf(" * ***** * ** * * * \n"); printf(" ***** * * **** ***** *****\n"); printf("\n ----EAGLE天下 制作\n"); for(;c!='0';) { printf(" 准 备 计 时 . . .\n"); sleep(1); printf(">"); sleep(1); for(i=0;i<=400;i=i*1+1,i=i*1+1,i=i*1+1,i=i*1+1,i=i*1+1) { printf(">"); } sleep(1); clrscr(); printf("\n \n"); printf(" ***** * *** * *****\n"); printf(" * * * * * * * \n"); printf(" **** * * * * *****\n"); printf(" * ***** * ** * * * \n"); printf(" ***** * * **** ***** *****\n"); printf("\n ----EAGLE天下 制作\n"); printf("\n \n 请输入倒计时时间(**:**) "); scanf("%2d:%2d",&a,&b); clrscr(); n=a*60+b; start=end=clock(); while((n-(int)(end-start)/19)>=0) { printf("\n \n"); printf(" ***** * *** * *****\n"); printf(" * * * * * * * \n"); printf(" **** * * * * *****\n"); printf(" * ***** * ** * * * \n"); printf(" ***** * * **** ***** *****\n"); printf("\n ----EAGLE天下 制作\n"); printf("\n \n 剩 余 时 间 %02d:%02d",(n-(int)(end-start)/19)/60,(n-(int)(end-start)/19)%60); sleep(1); end=clock(); clrscr(); } printf("\n \n"); printf(" ***** * *** * *****\n"); printf(" * * * * * * * \n"); printf(" **** * * * * *****\n"); printf(" * ***** * ** * * * \n"); printf(" ***** * * **** ***** *****\n"); printf("\n ----EAGLE天下 制作\n"); printf("\n \n 倒 计 时 结 束 !\n \n \n"); sleep(1); clrscr(); getchar(); c=getchar(); } printf("\n \n"); printf(" ***** * *** * *****\n"); printf(" * * * * * * * \n"); printf(" **** * * * * *****\n"); printf(" * ***** * ** * * * \n"); printf(" ***** * * **** ***** *****\n"); printf("\n ----EAGLE天下 制作\n"); printf("\n \n 谢 谢 使 用 ！"); sleep(1); getchar(); }