def replace_multiple(s, replacements): """ Replace multiple characters or substrings in a string. Args: s (str): The original string. replacements (dict): A dictionary of replacements, where the keys are the substrings to be replaced and the values are the replacement substrings. Returns:...
代码示例如下: defreplace_multiple_strings(text,replacements):forold,newinreplacements.items():text=text.replace(old,new)returntext text="Python is great. I love Python."replacements={"Python":"Java","great":"awesome","love":"like"}new_text=replace_multiple_strings(text,replacements)print(new_...
Python replace string with re.sub We can use regular expressions to replace strings. re.sub(pattern, repl, string, count=0, flags=0) There.submethod returns the string obtained by replacing the leftmost non-overlapping occurrences of pattern in string by the replacement repl. thermopylae.txt Th...
count("the") # 输出: 2 4.3 替换字符串:replace() replace()方法用于替换原字符串中的子字符串: new_text = text.replace("fox", "cat") print(new_text) # 输出: The quick brown cat jumps over the lazy dog. 4.4 正则表达式:强大的搜索与替换工具 Python的re模块提供了更强大的搜索和替换功能,...
In this tutorial, you'll learn how to remove or replace a string or substring. You'll go from the basic string method .replace() all the way up to a multi-layer regex pattern using the sub() function from Python's re module.
The parent-child relationship of processes is where the sub in the subprocess name comes from. When you use subprocess, Python is the parent that creates a new child process. What that new child process is, is up to you. Python subprocess was originally proposed and accepted for Python 2.4...
>>> str.replace('EAR','ear') #匹配替换 'string learn' >>> str.replace('n','N') 'striNg lEARN' >>> str.replace('n','N',1) 'striNg lEARn' >>> str.strip('n') #删除字符串首尾匹配的字符,通常用于默认删除回车符 'string lEAR' >>> str.lstrip('n') #左匹配 'string lEARn...
>>> str.replace('EAR','ear') #匹配替换 'string learn' >>> str.replace('n','N') 'striNg lEARN' >>> str.replace('n','N',1) 'striNg lEARn' >>> str.strip('n') #删除字符串首尾匹配的字符,通常用于默认删除回车符 'string lEAR' >>> str.lstrip('n') #左匹配 'string lEA...
We can use regex to replace multiple patterns at one time using regex. This can be easily done using the following syntax. Syntax: re.sub(pattern_1 | pattern_2, replacement, string, count=0, flags=0) Input: importrestr="Joe-Kim Ema Max Aby Liza"print(re.sub("(\s)|(-)",", "...
Substitute multiple whitespaces with single whitespace using regex importre target_str ="Jessa Knows Testing And Machine Learning \t \n"# \s+ to match all whitespaces# replace them using single space " "res_str = re.sub(r"\s+"," ", target_str)# string after replacementprint(res_str)...