擅长:python、mysql、java
<p><a href="https://docs.python.org/3/library/subprocess.html#subprocess.call" rel="nofollow">^{<cd1>}</a>返回被调用命令的返回代码。你知道吗</p>
<blockquote>
<p>Run the command described by args. Wait for command to complete, then return the returncode attribute.</p>
</blockquote>
<p>使用<a href="https://docs.python.org/3/library/subprocess.html#subprocess.check_output" rel="nofollow">^{<cd2>}</a>。你知道吗</p>