clear;
clc;
s=0:0.1:pi/2;
t=0:0.1:3*pi/2;
[s,t]=meshgrid(s,t);
x=cos(s).*cos(t);
y=cos(s).*sin(t);
z=sin(t);
surf(x,y,z)
set(gcf,'color','w');
shading interp;
title('采纳吧');
view(-61,50);