擅长:python、mysql、java
<p><strong>接收器</strong></p>
<pre><code>>>> import socket
>>> s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
>>> s.bind(('', 7775))
>>> print(s.recvfrom(1024))
(b'RV\n', ('127.0.0.1', 39860))
</code></pre>
<p><strong>发件人</strong></p>
^{pr2}$
<p>检查send()的返回值。应该是3。在</p>