1.编写test函数
function [o,p,q,r] = test( n )%%%%%%%%%%%%%%%编写function test函数
%%%%%%%%%%%%%%%%%%%%%%test函数变量为n，返回值为o,p,q,r
o= 0;p=0;
q=6;
r=128;
for i = 1:n
o = o + i;
p=p+1;
q=q.*n
r=r.^0.2
end
2.调用tset函数的main函数
clear all;
clear clc;
[a,b,q,r]= test(10)%%%%%%%%%%%%%%%%%%调用test函数n=10，a，b，q，r四个为n=10的test函数的返回值！