matlab动画如何保存

%function cupid %丘比特；
clear all
close all
clc
h1=figure('name','为你专属');
filename='111222333.gif';
%% set(gcf,'outerposition',get(0,'screensize'));
axis([-1.5 1.5 -2 0.5]);axis off;set(gcf,'color','black');
n=4;a=320;m=10^(-a);
h11=line(NaN,NaN,'marker','.','linesty','-','erasemode','none','color','r');
x1=[];
y1=[];
index=1;
for theta=pi/2:-2*pi/222:-3*pi/2;
r1=1+cos(theta+pi/2);
x1=[x1;r1*cos(theta)];
y1=[y1;r1*sin(theta)];
set(h11,'xdata',x1,'ydata',y1);
frame=getframe(gcf);
im=frame2im(frame);
[imind,cm]=rgb2ind(im,256);
if index==1
imwrite(imind,cm,filename,'gif', 'Loopcount',inf,'DelayTime',0.1);
else
imwrite(imind,cm,filename,'gif','WriteMode','append','DelayTime',0.01);
end
% pause(m);
index=index+1;
end
pause(1);
fill(x1,y1,'r');axis off;set(gcf,'color','black');
text(-0.16*n,-0.85,'刘洋','fontsize',n*18,'color','b');
title('心形线','fontsize',18,'color','m');disp('love you'); pause(1);x2=[]; y2=[];
h22=line(NaN,NaN,'marker','.','linesty','-','erasemode','none','color','b');

for theta=pi/2:-2*pi/222:-3*pi/2;
r2=1+cos(theta+pi/2);
x2=[x2;r2*cos(theta)]; y2=[y2;r2*sin(theta)]; set(h22,'xdata',x2,'ydata',y2);

frame=getframe(gcf);
im=frame2im(frame);
[imind,cm]=rgb2ind(im,256);
imwrite(imind,cm,filename,'gif','WriteMode','append','DelayTime',0.01);
pause(m^19);
end
h2=figure('name','爱的表达');
%% set(gcf,'outerposition',get(0,'screensize'));
fill(x2,y2,'r');text(-0.58,-0.7,'我爱你','fontsize',40,'color','b');
text(-0.17,-1.1,'刘洋','fontsize',18,'color','k');
title('心形线','fontsize',18,'color','m');
axis off;
set(gcf,'color','black');
pause(1);
x3=[];
y3=[];
h33=line(NaN,NaN,'marker','.','linesty','-','erasemode','none','color','b');
for theta=pi/2:-2*pi/222:-3*pi/2
%999一片真心；
r3=1+cos(theta+pi/2);
x3=[x3;r3*cos(theta)];
y3=[y3;r3*sin(theta)];
set(h33,'xdata',x3,'ydata',y3);
frame=getframe(gcf);
im=frame2im(frame);
[imind,cm]=rgb2ind(im,256);
imwrite(imind,cm,filename,'gif','WriteMode','append','DelayTime',0.01);
pause(m^19);
end