擅长:python、mysql、java
<p>我把行动和逻辑分开,像这样:</p>
<pre><code>action_dict = dict([
(1, lambda: a(10)),
(2, lambda: a(20)),
])
def switch(value, actions):
if value in actions:
return actions[value]()
return 'gauw'
print "Enter value of i"
i=eval(raw_input())
switch(i, action_dict)
</code></pre>