This will replace all occurrences.import re # multiline string string = 'abc 12\ de 23 \n f45 6' # matches all whitespace characters pattern = '\s+' replace = '' new_string = re.sub(r'\s+', replace, string, 1) print(new_string) # Output: # abc12de 23 # f45 6 ...
You can passcountas a fourth parameter to there.sub()method. If omited, it results to 0. This will replace all occurrences. importre# multiline stringstring ='abc 12\ de 23 \n f45 6'# matches all whitespace characterspattern ='\s+'replace =''new_string = re.sub(r'\s+', replace...
As I told you, thecountargument of there.sub()method is optional. The count argument will set the maximum number of replacements that we want to make inside the string. By default, thecountis set to zero, which means there.sub()method will replace all pattern occurrences in the target str...
在下面的示例中,我们使用 re.findall() 函数查找字符串中的所有“a”。匹配项作为列表返回,然后我们将其打印到控制台。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 pattern="a"text="This is an example text."# Find all occurrencesof'a'inthe text matches=re.findall(pattern,text)# Output th...
# Find all occurrences of 'Python' matches = re.findall("Python", text) # Output the matches print(matches) re 模块中有更多函数可以用来构建更复杂的模式。但首先,让我们看看 re 模块中的常用函数。 常用函数 在向您介绍 Python RegEx 的基础知识之前,我们先看看常用函数,以便更好地掌握其余概念。 re...
Replace the first 2 occurrences: importre txt ="The rain in Spain" x = re.sub("\s","9", txt,2) print(x) Try it Yourself » Match Object A Match Object is an object containing information about the search and the result.
# Find all occurrences of 'Python' matches = re.findall("Python", text) # Output the matches print(matches) re 模块中有更多函数可以用来构建更复杂的模式。但首先,让我们看看 re 模块中的常用函数。 常用函数 在向您介绍 Python RegEx 的基础知识之前,我们先看看常用函数,以便更好地掌握其余概念。 re...
re.finditer() 函数与 re.findall() 类似,但它返回一个迭代器,该迭代器产生匹配对象。 在下面的代码中,re.finditer()函数用于查找字符串文本中所有出现的字母“a”。它返回匹配对象的迭代器,我们打印每个匹配的索引和值。 pattern ="a"text ="This is an example text."# Find all occurrences of 'a' in...
non-overlapping occurrencesofthe patterninstring by the replacement repl.repl can be either a string or a callable;ifa string,backslash escapesinit are processed.If it is a callable,it's passed the match object and mustreturna replacement string to be used."""return_compile(pattern,flags).sub...
The Python regex split() method split the string by the occurrences of the regex pattern and returns a list of the resulting substrings.