c语言的时钟
⑴ c语言电子时钟设计
#include<graphics.h> #include<math.h> #include<dos.h> #define PI 3.1415926 //屏幕中心的坐标（640X480模式下） #define mid_x 320 #define mid_y 240 int main() { int graphdriver=DETECT,graphmode; int end_x,end_y; struct time curtime; float th_hour,th_min,th_sec; initgraph(&graphdriver,&graphmode,"C:\\TC2"); //初始化VGA屏幕模式 setbkcolor(BLACK); //使用黑色的背景色 while(!kbhit(0)) //若有键盘输入，则跳出，即是结束程序 { setcolor(GREEN); //把画笔设为绿色 circle(mid_x,mid_y,180); //钟的外圆 circle(mid_x,mid_y,150); //钟的内圆 circle(mid_x,mid_y,1); //画出钟的圆心 gettime(&curtime); //取得系统当前时间 th_sec=(float)curtime.ti_sec*0.1047197551; //把秒针的角度化为弧度，为以后绘制时方便，下同 th_min=(float)curtime.ti_min*0.1047197551+th_sec/60.0; //分针的弧度 th_hour=(float)curtime.ti_hour*0.5235987755+th_min/12.0; //时度的弧度，注意整时是12等分的，所时乘的是3.14/180*5 //计算出时针的尾的坐标（时针长70） end_x=mid_x+70*sin(th_hour); end_y=mid_y-70*cos(th_hour); setcolor(RED); line(mid_x,mid_y,end_x,end_y); //用红色线画出时针 //计算出分针坐标(分针长110） end_x=mid_x+110*sin(th_min); end_y=mid_y-110*cos(th_min); setcolor(RED); line(mid_x,mid_y,end_x,end_y); //用红色画出分针 end_x=mid_x+140*sin(th_sec); end_y=mid_y-140*cos(th_sec); setcolor(RED); line(mid_x,mid_y,end_x,end_y); //同上，画出秒针，长为140 //画出钟盘上的刻度，刻度长20 line(140,240,160,240); //9点对应的大刻度 line(320,60,320,80); //12点对应的大刻度 line(500,240,480,240); //3点的刻度 line(320,420,320,400); //6点的刻度 line(410,395.7,400,378.4); //5点 line(475.7,330,458.4,320); //4点 line(475.7,150,458.4,160); //2点 line(410,84.3,400,101.6); //1点 line(230,84.3,240,101.6); //11点 line(164.3,150,181.6,160); //10点 line(164.3,330,181.6,320); //8点 line(230,395.7,240,378.4); //7点 sleep(BLUE); //这里应该是打错，停止一秒，应为sleep(1000) cleardevice(); //清除屏幕上的显示 } closegraph(); //关闭VGA屏幕，即返回文本方式 return 0; }
⑵ c语言的时钟程序
#include<graphics.h>
#include<math.h>
#include<dos.h>
#define PI 3.1415926
//屏幕中心的坐标（640X480模式下）
#define mid_x 320
#define mid_y 240
int main()
{ int graphdriver=DETECT,graphmode;
int end_x,end_y;
struct time curtime;
float th_hour,th_min,th_sec;
initgraph(&graphdriver,&graphmode,"C:\\TC2"); //初始化VGA屏幕模式
setbkcolor(BLACK); //使用黑色的背景色
while(!kbhit(0)) //若有键盘输入，则跳出，即是结束程序
{ setcolor(GREEN); //把画笔设为绿色
circle(mid_x,mid_y,180); //钟的外圆
circle(mid_x,mid_y,150); //钟的内圆
circle(mid_x,mid_y,1); //画出钟的圆心
gettime(&curtime); //取得系统当前时间
th_sec=(float)curtime.ti_sec*0.1047197551; //把秒针的角度化为弧度，为以后绘制时方便，下同
th_min=(float)curtime.ti_min*0.1047197551+th_sec/60.0; //分针的弧度
th_hour=(float)curtime.ti_hour*0.5235987755+th_min/12.0; //时度的弧度，注意整时是12等分的，所时乘的是3.14/180*5
//计算出时针的尾的坐标（时针长70）
end_x=mid_x+70*sin(th_hour);
end_y=mid_y-70*cos(th_hour);
setcolor(RED);
line(mid_x,mid_y,end_x,end_y); //用红色线画出时针
//计算出分针坐标(分针长110）
end_x=mid_x+110*sin(th_min);
end_y=mid_y-110*cos(th_min);
setcolor(RED);
line(mid_x,mid_y,end_x,end_y); //用红色画出分针
end_x=mid_x+140*sin(th_sec);
end_y=mid_y-140*cos(th_sec);
setcolor(RED);
line(mid_x,mid_y,end_x,end_y); //同上，画出秒针，长为140
//画出钟盘上的刻度，刻度长20
line(140,240,160,240); //9点对应的大刻度
line(320,60,320,80); //12点对应的大刻度
line(500,240,480,240); //3点的刻度
line(320,420,320,400); //6点的刻度
line(410,395.7,400,378.4); //5点
line(475.7,330,458.4,320); //4点
line(475.7,150,458.4,160); //2点
line(410,84.3,400,101.6); //1点
line(230,84.3,240,101.6); //11点
line(164.3,150,181.6,160); //10点
line(164.3,330,181.6,320); //8点
line(230,395.7,240,378.4); //7点
sleep(BLUE); //这里应该是打错，停止一秒，应为sleep(1000)
cleardevice(); //清除屏幕上的显示
}
closegraph(); //关闭VGA屏幕，即返回文本方式
return 0;
}
⑶ 用C语言编一个数字电子时钟的程序
1.这是用windows api写的程序。所以要求是纯c的话就没有办法了
2.其中定时用了两种方法。一种是用取消息。另一种是延时队列。这里只使用了取消息的方法。延时队列由于我机器上是vc6.0，CreateTimerQueue在本人机器上无法使用，需要新的sdk，所以没有加以验证，但取消息的方式是可行的。
3.稍稍验证了下，基本满足要求。
-------------------------------------------
程序如下：
// DigitalClock.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include <windows.h>
#include <winbase.h>
typedef struct _st_time{
int hour;
int min;
int sec;
}ST_TIME;
ST_TIME g_Time; // The struct contain the hour,min and sec.
HANDLE g_hStdout; //
WORD g_cxCenter, g_cyCenter; // Center of the screen.
HANDLE g_DoneEvent; // The program could be over.
BOOL g_ThreadTerminated; // The Thread should be terminated.
#define SECOND_CIRCLE 60
#define MINUTE_CIRCLE 60
#define HOUR_CIRCLE 24
void TimeIncreaseSecond(ST_TIME & st)
{
st.sec ++;
if (st.sec >= SECOND_CIRCLE)
{
st.sec -= SECOND_CIRCLE;
st.min++;
if (st.min >= MINUTE_CIRCLE)
{
st.min -= MINUTE_CIRCLE;
st.hour++;
if (st.hour >= HOUR_CIRCLE)
{
st.hour -= HOUR_CIRCLE;
}
}
}
}
void PrintTimeToScreen(HANDLE hStdout, short cxCenter, short cyCenter, ST_TIME st)
{
char buf[64] = {0};
COORD crdPos;
// make it format to output.
sprintf (buf, "%02d:%02d:%02d", st.hour, st.min, st.sec);
crdPos.X = cxCenter - 4;
crdPos.Y = cyCenter;
SetConsoleCursorPosition(hStdout, crdPos);
printf(buf);
}
#ifdef USE_TIMERQUEUE
// if we use the timer queue function.
// Its procre is in this.
void CALLBACK TimerRoutine (LPVOID lpParam, BOOL TimerOrWaitFired)
{
if (lpParam == NULL)
{
printf ("NULL parameters.\n");
}
else
{
ST_TIME *st = (ST_TIME *)lpParam;
TimeIncreaseSecond(st);
PrintTimeToScreen(g_hStdout, g_cxCenter, g_cyCenter, *st);
}
}
#else
DWORD WINAPI TimerThreadProc(LPVOID lpParam)
{
#define ID_TIMER_SECOND 1
MSG msg;
BOOL ret;
ST_TIME *st = (ST_TIME *)lpParam;
SetTimer(NULL, ID_TIMER_SECOND, 1000, NULL);
PeekMessage(&msg, NULL, WM_USER, WM_USER, PM_NOREMOVE);
while (!g_ThreadTerminated && (ret = GetMessage (&msg, NULL, 0, 0)) != 0)
{
if (ret == -1)
{
//process fatal event.
}
else if (msg.message == WM_TIMER)
{
TimeIncreaseSecond(*st);
PrintTimeToScreen(g_hStdout, g_cxCenter, g_cyCenter, *st);
}
else
{
TranslateMessage (&msg);
DispatchMessage (&msg);
}
}
return 1;
}
#endif
// If the ctrl+break combined key pressed. call this function.
// It set the g_DoneEvent. this terminate the program.
BOOL WINAPI CtrlHandler(DWORD fdwCtrlType)
{
switch (fdwCtrlType)
{
case CTRL_BREAK_EVENT:
// Terminate the program.
printf ("Terminate.\n");
SetEvent(g_DoneEvent);
return TRUE;
default:
return FALSE;
}
}
BOOL InitApplication()
{
// Get the stdin and stdout handle.
HANDLE hStdIn;
hStdIn = GetStdHandle(STD_INPUT_HANDLE);
if (hStdIn == INVALID_HANDLE_VALUE)
return FALSE;
g_hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
// Set the mode, make the input echo.
DWORD fOldMode;
GetConsoleMode(hStdIn, &fOldMode);
fOldMode |= ENABLE_LINE_INPUT | ENABLE_ECHO_INPUT;
SetConsoleMode(hStdIn, fOldMode);
// Set the window buffer.
// make a line 40 columns.
CONSOLE_SCREEN_BUFFER_INFO csbiInfo;
GetConsoleScreenBufferInfo(g_hStdout, &csbiInfo);
csbiInfo.srWindow.Right = 40;
// get the center point.
g_cxCenter = csbiInfo.srWindow.Right / 2;
g_cyCenter = csbiInfo.srWindow.Bottom / 2;
// Set the window.
SetConsoleWindowInfo(g_hStdout, TRUE, &csbiInfo.srWindow);
return TRUE;
}
BOOL (HANDLE hStdout, WORD cxCenter, WORD cyCenter, ST_TIME & time)
{
#define GAPS_LEFT_COLON (-2)
#define GAPS_RIGHT_COLON (1)
#define GAPS_LEFT_UNDERLINE_START (-4)
#define GAPS_MIDDLE_UNDERLINE_START (-1)
#define GAPS_RIGHT_UNDERLINE_START (2)
// __:__:__
// So the left ":" center -2
// so the right ":" center + 1
// so the left "_" center - 4;
// so the lfet "_" center - 1;
// so the right "_" center + 2;
COORD crdPos;
crdPos.X = cxCenter + GAPS_LEFT_COLON;
crdPos.Y = cyCenter;
SetConsoleCursorPosition(hStdout, crdPos);
printf (":");
crdPos.X = cxCenter + GAPS_RIGHT_COLON;
SetConsoleCursorPosition(hStdout, crdPos);
printf (":");
crdPos.X = cxCenter + GAPS_LEFT_UNDERLINE_START;
SetConsoleCursorPosition(hStdout, crdPos);
scanf ("%d", &time.hour);
crdPos.X = cxCenter + GAPS_MIDDLE_UNDERLINE_START;
SetConsoleCursorPosition(hStdout, crdPos);
scanf ("%d", &time.min);
crdPos.X = cxCenter + GAPS_RIGHT_UNDERLINE_START;
SetConsoleCursorPosition(hStdout, crdPos);
scanf ("%d", &time.sec);
if (time.hour < 0 || time.hour > HOUR_CIRCLE ||
time.min < 0 || time.min > MINUTE_CIRCLE ||
time.sec < 0 || time.sec > SECOND_CIRCLE)
return FALSE;
return TRUE;
}
int main(int argc, char* argv[])
{
InitApplication();
(g_hStdout, g_cxCenter, g_cyCenter, g_Time);
// create a event to tell the program to terminate.
g_DoneEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
#ifdef USE_TIMERQUEUE
HANDLE hTimerQueue, hTimer;
hTimerQueue = CreateTimerQueue();
if (!CreateTimerQueueTimer(&hTimer,
hTimerQueue, TimerRoutine, &g_Time, 1000, 0, 0))
{
printf("CreateTimerQueueTimer failed (%d)\\n", GetLastError());
return 3;
}
#else
// create the thread.
HANDLE hThreadTimer;
DWORD dwThreadId;
g_ThreadTerminated = FALSE;
hThreadTimer = CreateThread(NULL, 0,
TimerThreadProc, &g_Time, 0, &dwThreadId);
if (hThreadTimer == NULL)
{
}
#endif
SetConsoleCtrlHandler(CtrlHandler, TRUE);
if (WaitForSingleObject(g_DoneEvent, INFINITE) != WAIT_OBJECT_0)
printf("WaitForSingleObject failed (%d)\\n", GetLastError());
#ifdef USE_TIMERQUEUE
if (!DeleteTimerQueue(hTimerQueue))
printf("DeleteTimerQueue failed(%d) \\n", GetLastError());
#else
g_ThreadTerminated = TRUE;
if (WaitForSingleObject(hThreadTimer, INFINITE) != WAIT_OBJECT_0)
printf("WaitForSingleObject failed (%d)\\n", GetLastError());
#endif
return 0;
}
--------------------------------------------
下面是纯c的。
有几个问题：
1.textmode函数在turboc中没有办法使用，不知道是什么问题，而borland c就可以。
2.无论怎么设置，自己的ctrlbreak函数在上述两个环境中都不能被调用，非常遗憾。所以不能够优雅的退出。只能按两次ctrlbreak。
下面是程序。
------------------------------------------
#include <stdio.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
#include <dos.h>
#define ABORT 0
int jump_out_loop = -1;
int jump_out(void)
{
jump_out_loop = 1;
printf("Abort ..\n");
return ABORT;
}
int main(void)
{
struct text_info ti;
int center_x, center_y;
int hour, min, sec;
char str_out[64] = {0};
clrscr();
/*textmode(BW40);*/
/*textmode在turbo c下设置会出问题*/
gettextinfo(&ti);
center_x = ti.winright / 2;
center_y = ti.winbottom / 2;
gotoxy(center_x - 4, center_y);
cprintf(" : : ");
gotoxy(center_x - 4, center_y);
cscanf("%d", &hour);
gotoxy(center_x - 1, center_y);
cscanf("%d", &min);
gotoxy(center_x + 2, center_y);
cscanf("%d", &sec);
/* check input valid or not */
{}
setcbrk(1);
ctrlbrk(jump_out);
/*jump_out没有起到作用,实在不好意思.*/
/*
if (getcbrk())
printf("crtl break is on\n");
else
printf("is off\n");
*/
while (1)
{
delay(1000);
sec++;
if (sec >= 60)
{
sec -= 60;
min++;
if (min >= 60)
{
min -= 60;
hour++;
if (hour >= 24)
{
hour -= 24;
}
}
}
sprintf(str_out, "%02d:%02d:%02d", hour, min, sec);
gotoxy(center_x - 4, center_y);
cprintf(str_out);
}
/* getch();*/
return 0;
}
⑷ 用C语言 编写 一个时钟程序
/*全屏幕模拟时钟的c源程序*/
#include<graphics.h>
#include<math.h>
#include<dos.h>
#define
pi
3.1415926
#define
X(a,b,c)
x=a*cos(b*c*pi/180-pi/2)+300;
#define
Y(a,b,c)
y=a*sin(b*c*pi/180-pi/2)+240;
#define
d(a,b,c)
X(a,b,c);Y(a,b,c);line(300,240,x,y)
void
init()
{int
i,l,x1,x2,y1,y2;
setbkcolor(0);
circle(300,240,200);
circle(300,240,205);
circle(300,240,5);
for(i=0;i<60;i++)
{if(i%5==0)
l=15;
else
l=5;
x1=200*cos(i*6*pi/180)+300;
y1=200*sin(i*6*pi/180)+240;
x2=(200-l)*cos(i*6*pi/180)+300;
y2=(200-l)*sin(i*6*pi/180)+240;
line(x1,y1,x2,y2);
/*在指定的两点间画一条线*/
}
}
main()
{
int
x,y;
int
gd=VGA,gm=2;
unsigned
char
h,m,s;
struct
time
t[1];
initgraph(&gd,&gm,"d:\\tc");
/*初始化图形系统*/
init();
setwritemode(1);
gettime(t);
/*读取系统时间*/
h=t[0].ti_hour;
m=t[0].ti_min;
s=t[0].ti_sec;
setcolor(7);
/*设置当前线的颜色*/
d(150,h,30);
setcolor(14);
d(170,m,6);
setcolor(4);
d(190,s,6);
while(!kbhit())
/*kbhit检查当前按下的健*/
{while(t[0].ti_sec==s)
gettime(t);
sound(400);
delay(70);
sound(200);
delay(30);
nosound();
setcolor(4);
d(190,s,6);
s=t[0].ti_sec;
d(190,s,6);
if
(t[0].ti_min!=m)
{
setcolor(14);
d(170,m,6);
m=t[0].ti_min;
d(170,m,6);
}
if
(t[0].ti_hour!=h)
{
setcolor(7);
d(150,h,30);
h=t[0].ti_hour;
d(150,h,30);
sound(1000);
delay(240);
nosound();
delay(140);
sound(2000);
delay(240);
nosound();
}
}
getch();
closegraph();
/*关闭图形系统*/
}
⑸ c语言 时钟模拟
#include<math.h>
#include<dos.h>
#include<graphics.h>
#include<conio.h>
#include<time.h>
#define PI 3.141592653589793
int h,m,s,i,l,mon,y,d;
struct time t;
struct date data;
draw()
{
gettime(&t); //取得时间信息到t
s=t.ti_sec; //秒
h=t.ti_hour; //时
m=t.ti_min; //分
getdate(&data); //取得日期信息到data
y=data.da_year; //年
mon=data.da_mon; //月
d=data.da_day; //日
//画出钟的外圆（即是轮廓）
setcolor(11);
circle(300,200,152);
setcolor(3);
circle(300,200,157);
//画出60个分钟刻度
for(i=0;i<60;i+=1)
{
if(i%5==0) l=140;
else l=145;
line(300+150*sin(i*PI/30),200-150*cos(i*PI/30),
300+l*sin(i*PI/30),200-l*cos(i*PI/30));
}
//画秒针
setcolor(19);
line(300,200,300+140*sin(s*PI/30),200-140*cos(s*PI/30));
//画分针
setcolor(3);
line(300,200,300+110*sin(m*PI/30),200-110*cos(m*PI/30));
//画时针
setcolor(11);
line(300,200,300+90*sin(((float)h+(float)m/60)*PI/6),200-90*cos(((float)h+(float)m/60)*PI/6));
//标注钟盘上的"3"、"6"、"9"、"12"
settextstyle(3,0,2);
outtextxy(430,190,"3");
outtextxy(295,320,"6");
outtextxy(160,190,"9");
outtextxy(293,60,"12");
}
main()
{
int gd=DETECT,gm;
initgraph(&gd,&gm,""); //初始化屏幕模式
setbkcolor(8);
while(!kbhit()) //若有键盘输入则跳出（结束程序）
{
draw(); //绘制钟
settextstyle(3,0,5);
setcolor(9);
outtextxy(60,170,"my clock");
gotoxy(35,17);
//打印出数字形式的时间（hh:mm:ss）
if(h<10) printf("0");printf("%d:",h);
if(m<10) printf("0");printf("%d:",m);
if(s<10) printf("0");printf("%d",s);
gotoxy(33,18);
printf("%d:",y);
//打印出日期(mm:dd)
if(mon<10) printf("0");printf("%d:",mon);
if(d<10) printf("0");printf("%d",d);
sound(200); //让喇叭以200HZ叫一声
delay(70); //延时0.07秒,即是声音延续0.07秒
nosound(); //停止声音
sleep(1); //停止一秒
cleardevice(); //清屏
}
}
⑹ C语言时钟设计
#include<graphics.h> /* 引入graphic.h */ #include<math.h> /* 引入math.h */ #include<dos.h> /* 引入dos.h */ #define pi 3.1415926 /*定义pi=3.14159*/ #define X(a,b,c) x=a*cos(b*c*pi/180-pi/2)+300; #define Y(a,b,c) y=a*sin(b*c*pi/180-pi/2)+240; #define d(a,b,c) X(a,b,c);Y(a,b,c);line(300,240,x,y) /*定义……*/ void init() /*初始化程序*/ {int i,l,x1,x2,y1,y2; /*定义……*/ setbkcolor(1); /*设置颜色*/ circle(300,240,200); /*作园*/ circle(300,240,205); circle(300,240,5); for(i=0;i<60;i++) /*循环（算时间）*/ {if(i%5==0) l=15; else l=5; x1=200*cos(i*6*pi/180)+300; y1=200*sin(i*6*pi/180)+240; x2=(200-l)*cos(i*6*pi/180)+300; y2=(200-l)*sin(i*6*pi/180)+240; line(x1,y1,x2,y2); } } main() { int x,y; int gd=VGA,gm=2; unsigned char h,m,s; /*定义*/ struct time t[1]; initgraph(&gd,&gm,"d:\\tc"); init(); setwritemode(1); gettime(t); h=t[0].ti_hour; m=t[0].ti_min; s=t[0].ti_sec; /*定义时分秒*/ setcolor(7); /*设置颜色*/ d(150,h,30); setcolor(14); d(170,m,6); setcolor(4); d(190,s,6); while(!kbhit()) /*获取键盘相应*/ {while(t[0].ti_sec==s) gettime(t); /*C语言中得到时间的函数*/ sound(400); /*计算时间……*/ delay(70); sound(200); delay(30); nosound(); setcolor(4); d(190,s,6); s=t[0].ti_sec; d(190,s,6); if (t[0].ti_min!=m) { setcolor(14); d(170,m,6); m=t[0].ti_min; d(170,m,6); } if (t[0].ti_hour!=h) { setcolor(7); d(150,h,30); h=t[0].ti_hour; d(150,h,30); sound(1000); delay(240); nosound(); delay(140); sound(2000); delay(240); nosound(); } } getch(); /*设置空格后退出*/ closegraph(); }
⑺ c语言时钟代码
#include<graphics.h> /* 引入graphic.h */
#include<math.h> /* 引入math.h */
#include<dos.h> /* 引入dos.h */
#define pi 3.1415926 /*定义pi=3.14159*/
#define X(a,b,c) x=a*cos(b*c*pi/180-pi/2)+300;
#define Y(a,b,c) y=a*sin(b*c*pi/180-pi/2)+240;
#define d(a,b,c) X(a,b,c);Y(a,b,c);line(300,240,x,y) /*定义……*/
void init() /*初始化程序*/
{int i,l,x1,x2,y1,y2; /*定义……*/
setbkcolor(1); /*设置颜色*/
circle(300,240,200); /*作园*/
circle(300,240,205);
circle(300,240,5);
for(i=0;i<60;i++) /*循环（算时间）*/
{if(i%5==0) l=15;
else l=5;
x1=200*cos(i*6*pi/180)+300;
y1=200*sin(i*6*pi/180)+240;
x2=(200-l)*cos(i*6*pi/180)+300;
y2=(200-l)*sin(i*6*pi/180)+240;
line(x1,y1,x2,y2);
}
}
main()
{
int x,y;
int gd=VGA,gm=2;
unsigned char h,m,s; /*定义*/
struct time t[1];
initgraph(&gd,&gm,"d:\\tc");
init();
setwritemode(1);
gettime(t);
h=t[0].ti_hour;
m=t[0].ti_min;
s=t[0].ti_sec; /*定义时分秒*/
setcolor(7); /*设置颜色*/
d(150,h,30);
setcolor(14);
d(170,m,6);
setcolor(4);
d(190,s,6);
while(!kbhit()) /*获取键盘相应*/
{while(t[0].ti_sec==s)
gettime(t); /*C语言中得到时间的函数*/
sound(400); /*计算时间……*/
delay(70);
sound(200);
delay(30);
nosound();
setcolor(4);
d(190,s,6);
s=t[0].ti_sec;
d(190,s,6);
if (t[0].ti_min!=m)
{
setcolor(14);
d(170,m,6);
m=t[0].ti_min;
d(170,m,6);
}
if (t[0].ti_hour!=h)
{ setcolor(7);
d(150,h,30);
h=t[0].ti_hour;
d(150,h,30);
sound(1000);
delay(240);
nosound();
delay(140);
sound(2000);
delay(240);
nosound();
}
}
getch(); /*设置空格后退出*/
closegraph();
}
具体的。。就是套用用几个函数算时间。。
不要对这种很长的东西害怕，其实大部分都是在画这个钟～
加油哦～