python中copy.copy()是淺拷貝，只拷貝父物件，不會拷貝物件的內部的子物件。copy.deepcopy()是深拷貝，會拷貝物件及其子物件。

import copy

aList = ['1',2,'a',['b','c']]
bList = aList#將aList賦給bList
cList = copy.copy(aList)#淺拷貝
dList = copy.deepcopy(aList)#深拷貝

aList.append('test')#在aList末尾新增'test'
aList[3].append('list')#在aList中['b','c']的末尾新增'list'

print 'aList:%s'% aList
print 'bList:%s'% bList
print 'cList:%s'% cList
print 'dList:%s'% dList
 

aList:['1', 2, 'a', ['b', 'c', 'list'], 'test']
bList:['1', 2, 'a', ['b', 'c', 'list'], 'test']
cList:['1', 2, 'a', ['b', 'c', 'list']]
dList:['1', 2, 'a', ['b', 'c']]