比如下面这篇文章,复制粘贴到文本文档"article.txt"中去
Being depressed has been the obvious illness for some people nowadays. It has been noticed by the public. The news reported that some people got suicide because they had been suffered from depression for a long time. We felt so pity for the loss of these young lives, and they deserved living a better life if they had not passed away.
When we saw the loss of young lives from the news, we felt sad and pity. The young people got suicide for many reasons, such as they got dumped by their girlfriends or boyfriends. Some children chose the extreme way to punish their parents after they had arguments. All of these reasons seemed can be solved in other people's eyes, there was no need to say goodbye to the world and miss the beautiful life.
Life is short, we should cherish it and spend time on the things that can bring us happiness. Thinking about our parents and friends, they support us all the time. Love and care from these lovely people can help us get over all kinds of difficulties.
然后用以下程序得到所有英文单词和所有以元音字母开头的字母的单词
clc;clear
fileName = 'article.txt';
fid = fopen(fileName);
str = fscanf(fid,'%c');
num = double(str);
idx =( num>=double('a')&num<=double('z'))|( num>=double('A')&num<=double('Z'));
words = cell(0);
i = 1; m = 0;
ew = '';
% 读出所有单词
for i= 1:1:numel(idx)
if(idx(i))
ew = [ew,str(i)];
k1 = 0;
else
k1 = k1+1;
if(k1 ==1)
m = m+1;
words = [words;ew];
end
ew = '';
end
end
% 将首字母为元音的全部提取
vowel = double('aeiouAEIOU');
mynewwords = cell(0);
for i = 1:1:numel(words)
s = double(words{i,1});
if(any(s(1) == vowel))
mynewwords = [mynewwords;words{i}];
end
end
结果如下
所有单词:
所有元音字母为首字母的单词: