擅长:python、mysql、java
<pre><code>def indexmap(self):
for node in self.nodes:
# list elem -^ ^- list
print(int(node),":",nodes[node])
# ^- It should be int, not elem.
</code></pre>
<p>所以,修好它</p>
<pre><code>def indexmap(self):
for (i,node) in enumerate(self.nodes):
print("{}:{}".format(i, node))
</code></pre>