import copy

a = [1, 2, 3, 4, ['a', 'b']]  #原始对象

b = a  #赋值，传对象的引用

c = copy.copy(a)  #对象拷贝，浅拷贝

d = copy.deepcopy(a)  #对象拷贝，深拷贝

a.append(5)  #修改对象a

a[4].append('c')  #修改对象a中的['a', 'b']数组对象

print 'a = ', a

print 'b = ', b

print 'c = ', c

print 'd = ', d

输出结果：

a =  [1, 2, 3, 4, ['a', 'b', 'c'], 5]

b =  [1, 2, 3, 4, ['a', 'b', 'c'], 5]

c =  [1, 2, 3, 4, ['a', 'b', 'c']]

d =  [1, 2, 3, 4, ['a', 'b']]