python里的append和extend

append()用法示例：
>>> mylist = [1,2,0,'abc']
>>> mylist
[1, 2, 0, 'abc']
>>> mylist.append(4)
>>> mylist
[1, 2, 0, 'abc', 4]
>>> mylist.append('haha')
>>> mylist
[1, 2, 0, 'abc', 4, 'haha']

<pre name="code" class="python">extend()用法示例：>>> mylist[1, 2, 0, 'abc', 4, 'haha']>>> mylist.extend(['lulu'])>>> mylist[1, 2, 0, 'abc', 4, 'haha', 'lulu']>>> mylist.extend([aaa,'lalalala'])Traceback (most recent call last):File "<stdin>", line 1, in <module>NameError: name 'aaa' is not defined>>> mylist.extend(['123123','lalalala'])>>> mylist[1, 2, 0, 'abc', 4, 'haha', 'lulu', '123123', 'lalalala']>>> mylist.extend([111111,222])>>> mylist[1, 2, 0, 'abc', 4, 'haha', 'lulu', '123123', 'lalalala', 111111, 222]