擅长:python、mysql、java
<p>将<code>user_input</code>从字符串转换为<code>int</code>,并且不要调用<code>switcher</code>字典中的函数:</p>
<pre><code>def choiceone():
# choiceone statement here
print "function 1"
def choicetwo():
# choicetwo statement here
print "function 2"
def switching(x):
switcher= {1: choiceone, # Don't call the function here
2: choicetwo,
}
func = switcher.get(x, 0)
func() # call the choice of function here
def main():
user_input = int(input("Choice: ")) # Convert to int
switching(user_input)
main()
</code></pre>