擅长:python、mysql、java
<p><code>__return__</code>关键字仅出现在调试器代码中:</p>
<pre><code>matt@stanley:~/src/Python-3.2$ grep -R __return__ .
./Lib/pdb.py: frame.f_locals['__return__'] = return_value
./Lib/pdb.py: if '__return__' in self.curframe_locals:
./Lib/pdb.py: self.message(repr(self.curframe_locals['__return__']))
./Lib/bdb.py: if '__return__' in frame.f_locals:
./Lib/bdb.py: rv = frame.f_locals['__return__']
</code></pre>