擅长:python、mysql、java
<p>为了调用由<code>sys.argv[1]</code>命名的函数,需要先获取它。例如:</p>
<pre><code>def add(x,y):
return x + y
def mul(x,y):
return x * y
def perform(action, x, y):
# action is a string containing a function name ("add" or "mul").
# globals() contains the accessible members, along with the functions.
return globals()[action](x, y)
</code></pre>
<p>在原始代码的上下文中:</p>
^{pr2}$