擅长:python、mysql、java
<p>你不是从<code>restart</code>回来的</p>
<p>您需要更改:</p>
<pre><code>def up(self):
return 'Bringing up Bridge'
</code></pre>
<p>至</p>
<pre><code>def up(self):
print 'Bringing up Bridge'
</code></pre>
<p>或更改:</p>
<pre><code>def restart(self, delay = 1.0):
self.down()
sleep(delay)
self.up()
</code></pre>
<p>至</p>
<pre><code>def restart(self, delay = 1.0):
vals = []
vals.append(self.down())
sleep(delay)
vals.append(self.up())
return vals
</code></pre>