擅长:python、mysql、java
<p>您不需要调用<code>open</code>。构造函数已经这样做了,在Windows上,打开COM端口的人在关闭它之前对它拥有独占访问权。</p>
<p>至于第二个问题,看看<a href="https://stackoverflow.com/questions/3028786/how-can-i-fix-error-6-the-handle-is-invalid-with-pyserial">How can I fix "[Error 6] The handle is invalid." with PySerial</a></p>