strings=['Hello','World','Python']chained_strings=list(chain(*strings))print(','.join(chained_strings))# Output: Hello,World,Python Copy MethodDescriptionPerformanceSuitable For join()Concatenates a list of strings into a single string with a specified delimiter.Efficient for string-specific opera...
sep=None, maxsplit=-1): 284 """split(s [,sep [,maxsplit]]) -> list of strings 285 286 Return a list of the words in the string s, using sep as the 287 delimiter string. If
print str.isupper()#判断是否是标题-->首字母大写,可以理解为大写 print str.istitle()#.join连接字符串 s1=['appium','selenium','android','ios']print'***'.join(s1)#使用.join()把列表转为字符串 print','.join(s1)#字符串转为列表 a='a b c'print a.split(' ')#移除空白 s3=' hello'p...
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',...
| found, return S and two empty strings. | | replace(...) | S.replace(old, new[, count]) -> string | '''替换,用新的字符串(new),替换原字符串里有的老字符串(old),用 count 指定替换的次数,不指定则全部替换''' | Return a copy of string S with all occurrences of substring ...
Return a copy of the string with only its first character capitalized. For 8-bit strings, this method is locale-dependent. str.center(width[, fillchar]) Return centered in a string of length width. Padding is done using the specified fillchar (default is a space). ...
def join(self, iterable): # real signature unknown; restored from __doc__ (用于将序列中的元素以指定的字符连接生成一个新的字符串) """ S.join(iterable) -> str Return a string which is the concatenation of the strings in the iterable. The separator between elements is S. """ return "...
Strings are interned at compile time ('wtf' will be interned but ''.join(['w', 't', 'f']) will not be interned) Strings that are not composed of ASCII letters, digits or underscores, are not interned. This explains why 'wtf!' was not interned due to !. CPython implementation of...
If the | separator is not found, return two empty strings and S. | | rsplit(...) | S.rsplit(sep=None, maxsplit=-1) -> list of strings | | Return a list of the words in S, using sep as the | delimiter string, starting at the end of the string and | working to the ...
#Create a string with a list and using the specified mark as the delimiter ",".join(list1) 将string变为list,以空格“ ”识别分隔 #Create a list with a string str1.split(" ") Replace string中的一部分 #Replace certain strings str1.replace("qw","wq") 借用集合(set)剔除list中的重复项...