defsplit_at_second_occurrence(text,char):first_occurrence=text.find(char)iffirst_occurrence==-1:return"Character not found"second_occurrence=text.find(char,first_occurrence+1)ifsecond_occurrence==-1:return"Second occurrence not found"returntext[:second_occurrence]text="Hello, world! This is a te...
Split the string at the first occurrence ofsep, and return a 3-tuple containing the part before the separator, the separator itself, and the part after the separator. If the separator is not found, return a 3-tuple containing the string itself, followed by two empty strings. mystr ='hell...
string = 'Twelve:12 Eighty nine:89 Nine:9.' pattern = '\d+'# maxsplit = 1# split only at the first occurrence result = re.split(pattern, string, 1) print(result)# 输出: ['Twelve:', ' Eighty nine:89 Nine:9.'] 顺便说一下,maxsplit默认值为0;默认值为0。意味着拆分所有匹配的结果。
>>> data = bytearray(b'Hello World') >>> data[0:5] bytearray(b'Hello') >>> data.startswith(b'Hello') True >>> data.split() [bytearray(b'Hello'), bytearray(b'World')] >>> data.replace(b'Hello', b'Hello Cruel') bytearray(b'Hello Cruel World') >>> 1. 2. 3. 4. ...
Thepartitionmethod splits the sequence at the first occurrence of the given separator and returns a 3-tuple containing the part before the separator, the separator itself, and the part after the separator. Therpartitionmethod splits the sequence at the last occurrence of the given separator and...
occurrence of sep, return 3-tuple with part before, the sep, and part after # 'hello' => ('hel', 'l', 'o') s.rsplit(sep, maxsplit) Return list of s split by sep with rightmost maxsplits performed s.split(sep, maxsplit) Return list of s split by sep with leftmost maxsplit...
()# Split the string at the first occurrence of sep, and return a 3-tuple containing the part before the separator, the separator itself, and the part after the separator. If the separator is not found, return a 3-tuple containing the string itself, followed by two empty strings.>>>'...
如果找不到该模式,则re.split()返回一个包含空字符串的列表。 您可以将maxsplit参数传递给re.split()方法。这是将要发生的最大拆分次数。 import re string = 'Twelve:12 Eighty nine:89 Nine:9.' pattern = '\d+' # maxsplit = 1 # split only at the first occurrence result = re.split(pattern,...
partition(sep)-> (head, sep, tail)返回的叫做三元组,分别是头部,分隔符,尾部,用起来相当于一个简单的split(),把其中的元素变为几个不可变的元组类。 str. partition(sep)使用方法 Split the string at the first occurrence of sep, and return a 3-tuple containing the part before the separator, the...
Split the string at the first occurrence of sep, and return a 3-tuple containing the part before the separator, the separator itself, and the part after the separator. If the separator is not found, return a 3-tuple containing the string itself, followed by two empty strings. ...