擅长:python、mysql、java
<p>将<code>return</code>语句放入循环中。这意味着在第一次迭代之后,您将退出函数,结果只有一个字符。你知道吗</p>
<p>您的代码应该如下所示:</p>
<pre><code>cryptotext = ""
for character in message:
# ...
# do the encryption, without returning
# ...
return cryptotext # after the loop has finished
</code></pre>