function is an object

python 的 function 是一個物件, 所以可以放進 collection 中等以後被呼叫.

>>> def a():
 print 'a';

 
>>> def b():
 print 'b';

 
>>> def c():
 print 'c';

 
>>> list = [a,b,c];
>>> for f in list:
 f();

 
a
b
c