练习1
s1='I like the letter E'
for n = 1:length(s1)
s2(n) = s1(length(s1) - n + 1)
end
s2
练习2
>> student.name = 'John Doe';
student.id = 'jdo2@sfu.ca';
student.number = 301073268;
student.grade = [100, 75, 73; ...
95, 91, 85.5; ...
100, 98, 72];
student
>> student(2).name = 'Ann Lane';
student(2).id = 'aln4@sfu.ca';
student(2).number = 301078853;
student(2).grade = [95 100 90; 95 82 97; 100 85 100];
>> student
>&