样例：一、设计题目：（宋体五号加黑）有滴答声音的全屏模拟时钟.（宋体五号）二、题目阐述及设计思路：这

样例：一、设计题目：（宋体五号加黑）有滴答声音的全屏模拟时钟.（宋体五号）二、题目阐述及设计思路：这

#include stdio.h#include math.h#include dos.h#include graphics.h#define PI 3.1415926#define th PI/180#define a 60void DrawXin(int x0,int y0,int k) ;void main(){ int gr=DETECT,gm; float th_hour,th_min,th_sec,end_x,end_y; struct time now; initgraph(&gr,&gm,c:\\turboc2); cleardevice(); DrawXin(320,200,90); while (!kbhit()) { setcolor(YELLOW); gettime(&now); th_sec=( 90-(float)now.ti_sec*6 )*th ; th_min=(90-( (float)now.ti_min+(float)now.ti_sec/60.0 )*6 )*th; th_hour=(90-( (float)now.ti_hour+(float)now.ti_min/60.0+(float)now.ti_sec/3600.0)*12)*th; end_x=320+cos(th_sec)*120; end_y=240-sin(th_sec)*120; line(320,240,end_x,end_y); end_x=320+cos(th_min)*90; end_y=240-sin(th_min)*90; line(320,240,end_x,end_y); end_x=320+cos(th_hour)*60; end_y=240-sin(th_hour)*60; line(320,240,end_x,end_y); sleep(1); setcolor(RED); end_x=320+cos(th_sec)*120; end_y=240-sin(th_sec)*120; line(320,240,end_x,end_y); end_x=320+cos(th_min)*90; end_y=240-sin(th_min)*90; line(320,240,end_x,end_y); end_x=320+cos(th_hour)*60; end_y=240-sin(th

我学会了