[转载]zz Matlab写的时钟，很漂亮

try %可以运行
close all
hfig=figure('visible','off');
set(hfig,'NumberTitle','off');
set(hfig,'name','My Clock');
set(hfig,'MenuBar','none');
set(hfig,'color',[0.5 0.7 0.3]);
set(hfig,'visible','on');
A=linspace(0,6.3,1000);
x1=8*cos(A);
y1=8*sin(A);

x2=7*cos(A);
y2=7*sin(A);
plot(x1,y1,'b','linewidth',1.4)
hold on
plot(x2,y2,'b','linewidth',3.5)
fill(0.4*cos(A),0.4*sin(A),'r');
axis off

axis([-10 10 -10 10])
axis equal
set(gca,'position',[[0.13 0.05 0.775 0.815]])
title(date,'fontsize',18)
for k=1:12;
xk=9*cos(-2*pi/12*k+pi/2);
yk=9*sin(-2*pi/12*k+pi/2);
plot([xk/9*8 xk/9*7],[yk/9*8 yk/9*7],'color',[0.3 0.8 0.9])
h=text(xk,yk,num2str(k),'fontsize',16,'color',...
[0.9 0.3 0.8],'HorizontalAlignment','center');
end
% 计算时针位置
ti=clock;
th=-(ti(4)+ti(5)/60+ti(6)/3600)/12*2*pi+pi/2;
xh3=4.0*cos(th);
yh3=4.0*sin(th);
xh2=xh3/2+0.5*cos(th-pi/2);
yh2=yh3/2+0.5*sin(th-pi/2);
xh4=xh3/2-0.5*cos(th-pi/2);
yh4=yh3/2-0.5*sin(th-pi/2);
hh=fill([0 xh2 xh3 xh4 0],[0 yh2 yh3 yh4 0],[0.6 0.5 0.3]);

% 计算分针位置
tm=-(ti(5)+ti(6)/60)/60*2*pi+pi/2;
xm3=6.0*cos(tm);
ym3=6.0*sin(tm);
xm2=xm3/2+0.5*cos(tm-pi/2);
ym2=ym3/2+0.5*sin(tm-pi/2);
xm4=xm3/2-0.5*cos(tm-pi/2);
ym4=ym3/2-0.5*sin(tm-pi/2);
hm=fill([0 xm2 xm3 xm4 0],[0 ym2 ym3 ym4 0],[0.6 0.5 0.3]);
% 计算秒针位置
ts=-(ti(6))/60*2*pi+pi/2;
hs=plot([0 7*cos(ts)],[0 7*sin(ts)],...
'color',[0.6 0.5 0.3],'linewidth',3);
set(gcf,'doublebuffer','on');
k=1;
while k<6;
ti=clock;
% 计算时针位置
th=-(ti(4)+ti(5)/60+ti(6)/3600)/12*2*pi+pi/2;
xh3=4.0*cos(th);
yh3=4.0*sin(th);
xh2=xh3/2+0.5*cos(th-pi/2);
yh2=yh3/2+0.5*sin(th-pi/2);

xh4=xh3/2-0.5*cos(th-pi/2);
yh4=yh3/2-0.5*sin(th-pi/2);
set(hh,'XData',[0 xh2 xh3 xh4 0],'YData',[0 yh2 yh3 yh4 0])

% 计算分针位置
tm=-(ti(5)+ti(6)/60)/60*2*pi+pi/2;
xm3=6.0*cos(tm);
ym3=6.0*sin(tm);
xm2=xm3/2+0.5*cos(tm-pi/2);
ym2=ym3/2+0.5*sin(tm-pi/2);
xm4=xm3/2-0.5*cos(tm-pi/2);
ym4=ym3/2-0.5*sin(tm-pi/2);
set(hm,'XData',[0 xm2 xm3 xm4 0],'YData',[0 ym2 ym3 ym4 0])
% 计算秒针位置
ts=-(ti(6))/60*2*pi+pi/2;
set(hs,'XData',[0 7*cos(ts)],'YData',[0 7*sin(ts)])
drawnow;
pause(0.09)
end
catch

end