#include <graphics.h> #include <conio.h> #include <math.h> #define Width 640 #define Height 480 #define PI 3.14159 int main() {// 初始化绘图窗口initgraph(640, 480, SHOWCONSOLE);//秒针起始坐标int center_x = Width / 2, center_y = Height / 2;//秒针终点坐标int secondEnd_x, secondEnd_y;//分针终点坐标int minuteEnd_x, minuteEnd_y;//时针终点坐标int hourEnd_x, hourEnd_y;//秒针长度int secondLength = Width / 4;//分针长度int minuteLength = Width / 5.5;//时针长度int hourLength = Width / 7;//秒针对应转到角度float secondAngle = 0;//分针对应转到角度float minuteAngle = 0;//时针对应转到角度float hourAngle = 0;//定义变量存储系统时间 SYSTEMTIME ti;BeginBatchDraw();while (1){setfillcolor(YELLOW);setlinestyle(PS_DASHDOTDOT, 5);setlinecolor(0x555555);circle(center_x, center_y, secondLength + 30);setcolor(0xAAAAAA);setlinestyle(PS_DOT | PS_ENDCAP_SQUARE, 2);circle(center_x, center_y, secondLength + 15);for (int i = 0; i < 12; i++){int x = center_x + cos(i * 30.0 / 360 * 2 * PI) * (secondLength + 15.0);int y = center_y - sin(i * 30.0 / 360 * 2 * PI) * (secondLength + 15.0);fillcircle(x, y, 5);}GetLocalTime(&ti);secondAngle = (ti.wSecond / 60.0) * (2 * PI);minuteAngle = (ti.wMinute / 60.0) * (2 * PI);hourAngle = ((ti.wHour % 12) / 12.0) * (2 * PI) + (ti.wMinute / 60.0) * (2 * PI / 12.0);secondEnd_x = center_x + secondLength * sin(secondAngle);secondEnd_y = center_y - secondLength * cos(secondAngle);minuteEnd_x = center_x + minuteLength * sin(minuteAngle);minuteEnd_y = center_y - minuteLength * cos(minuteAngle);hourEnd_x = center_x + hourLength * sin(hourAngle);hourEnd_y = center_y - hourLength * cos(hourAngle);//画秒针setlinestyle(PS_SOLID, 1);setcolor(WHITE);line(center_x, center_y, secondEnd_x, secondEnd_y);//画分针setlinestyle(PS_SOLID, 2);setcolor(GREEN);line(center_x, center_y, minuteEnd_x, minuteEnd_y);//画时针setlinestyle(PS_SOLID, 5);setcolor(RED);line(center_x, center_y, hourEnd_x, hourEnd_y);FlushBatchDraw();setlinestyle(PS_SOLID, 1);setcolor(BLACK);line(center_x, center_y, secondEnd_x, secondEnd_y);setlinestyle(PS_SOLID, 2);setcolor(BLACK);line(center_x, center_y, minuteEnd_x, minuteEnd_y);setlinestyle(PS_SOLID, 5);setcolor(BLACK);line(center_x, center_y, hourEnd_x, hourEnd_y);}EndBatchDraw();system("pause");closegraph();return 0; }
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