方法一:使用循环和str.replace() 这种方法通过遍历一个包含替换规则的字典,使用str.replace()方法逐个替换字符串中的字符。 python original_string = "Python is great. I love Python." replacements = {"Python": "Java", "great": "awesome", "love": "like"} def replace_multiple_strings(text, repla...
Python replace string with re.subWe can use regular expressions to replace strings. re.sub(pattern, repl, string, count=0, flags=0) The re.sub method returns the string obtained by replacing the leftmost non-overlapping occurrences of pattern in string by the replacement repl. ...
'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.rstrip('n') #右匹配 'stri...
In [23]: mainStr = "Hello, This is a sample string" ...: ...: ''' ...: Replace a set of multiple sub strings with a new string in main string. ...: ''' ...: def replaceMultiple(mainString, toBeReplaces, newString): ...: # Iterate over the strings to be replaced .....
Decodes the string using the codec registered for encoding. encoding defaults to the default string encoding. errors may be given to set a different error handling scheme. The default is 'strict', meaning that encoding errors raise UnicodeError. Other possible values are 'ignore', 'replace' and...
multiline_text = """This is a multi-line string. Isn't it cool?""" print(multiline_text) 2.5 字符串与字符串字面量 Python 3.6引入了字符串字面量,允许在字符串中使用反斜杠\和花括号{}进行模板化,这在编写代码时更易读: name = "Alice" greeting = f"Hello, {name}!" # 输出: Hello, Al...
deemed to delimit empty strings (for example, '1,,2'.split(',') returns ['1', '', '2']). The sep argument may consist of multiple characters (for example, '1<>2<>3'.split('<>') returns ['1', '2', '3']). Splitting an empty string with a specified separator returns ['...
strip().replace(r'[^\w\s]', '').lower() print(clean_text) 1.2.2 字符串格式转换与标准化 在不同系统间交互时,可能需要统一字符串格式,如日期、货币等。例如,将多种格式的日期字符串转换为标准格式: from datetime import datetime # 示例:转换不同格式日期为YYYY-MM-DD格式 date_strings = ['2022...
Replace a Character in a String Using Regex Module The regex module (re) provides more flexibility and control over character replacement, allowing for pattern matching and replacement. Example: import re text = "hello world" new_text = re.sub("l", "x", text) print(new_text) # "hexxo...
shell = "powershell" @staticmethod def _make_string_path_list(paths: list[Path]) -> str: return "', '".join(str(path).replace("'", "`'") for path in paths) def ignore_folders(self, paths: list[Path]) -> None: path_list = self._make_string_path_list(paths) command = ( ...