擅长:python、mysql、java
<p>这个密码有效。可能是压痕错了?公司名称:</p>
<pre><code>def is_subsequence(sub, string):
if sub in string:
return True # if sub is a subsequence of str otherwise False
return False
print(is_subsequence('cat', 'abcatdg'))
</code></pre>
<p>虽然missing在条件未验证的情况下返回False。在</p>