python字符串分割和合并（split()函数 / join()函数）

def split(self, *args, **kwargs): # real signature unknown
 """
 Return a list of the words in the string, using sep as the delimiter string.
 sep
 The delimiter according which to split the string.
 None (the default value) means split according to any whitespace,
 and discard empty strings from the result.
 maxsplit
 Maximum number of splits to do.
 -1 (the default value) means no limit.
 """
 pass

website = 'http://www.wakey.com.cn/'print(website.split('.', -1)) 
 # 按照字符串中的.来分割，不限次数print(website.split('.', 2)) 
 #按照字符串中的.来分割，分割成3份print(website.split('w', 5)) 
#按照字符串中的w来分割，分割成6份
返回结果：
['http://www', 'wakey', 'com', 'cn/']
['http://www', 'wakey', 'com.cn/']
['http://', '', '', '.', 'akey.com.cn/']

def join(self, ab=None, pq=None, rs=None): # real signature unknown; restored from __doc__
 """
 Concatenate any number of strings.
 The string whose method is called is inserted in between each given string.
 The result is returned as a new string.
 Example: '.'.join(['ab', 'pq', 'rs']) -> 'ab.pq.rs'
 """
 pass

website = '.'
list = ['www', 'wakey', 'com', 'cn']print('http://' + website.join(list))
返回结果：http://www.wakey.com.cn