Matlab GUI，进度条(waitbar)

clear;
clc;
hrand=waitbar(0.3,'示例');   %进度条
% get(hrand,'Children');
ha1=get(hrand,'Children');  %坐标轴
set(ha1,'Color','b');
set(ha1,'XColor','r');
set(ha1,'YColor','g');
% hac=get(ha1,'Children');
% hapa=findall(ha1,'Type','patch');
% set(hapa,'Facecolor','k');
% set(ha1,'AmbientLightColor',[0 1 0]);