原文地址:Can’t escape the backslash with regex? 当然还可以使用 raw string来写,也就是写成 re.sub(r'\\','',item) 1. 由于使用了r'\\',python的字符串解析器看到r'\\'之后,就直接将外层的r''去掉然后传递给re解析器,re解析器会再次解析\\为\,匹配内容是一个反斜杠\ 字符串方法replace() 除了...
backslashreplace(仅限编码):使用 Python 的反斜杠转义序列替换无法编码的字符。 # 假设我们有一些带有非法字符的字节串 byte_string_with_error = b'Hello, \x80 World!' # 忽略错误 decoded_ignored = byte_string_with_error.decode('utf-8', 'ignore') print(decoded_ignored) # 输出: Hello, World!
str.replace(old, new[, count])返回字符串的副本,其中所有出现的子字符串old都被new替换。 如果给出了可选参数count,则替换count次 (only the firstcountoccurrences are replaced)。 >>> str = "this is string example...wow!!! is" >>> str.replace("is", "was", 2) 'thwas was string example...
默认编码为“utf-8”。 可能会给出错误以设置不同的错误处理方案。 错误的默认值是“严格”,这意味着编码错误会引发UnicodeError。 其他可能的值是'ignore'、'replace'、'xmlcharrefreplace'、'backslashreplace'和通过codecs.register_error()注册的任何其他名称,请参阅部分错误处理程序。
S.replace(old, new[, count]) -> string|| Return a copy of string S with all occurrences...
encode. For stderr, the errorhandler part is ignored; the handler will always be ´backslashreplace´. PYTHONNOUSERSITE If this is set to a non-empty string it is equivalent to specifying the -s option (Don't add the user site directory to sys.path). PYTHONUNBUFFERED If this is set...
re.sub( r"\\\w+\s*", # a backslash followed by alphanumerics; '', # replace it with an empty string; input_string # in your input string ) >>> re.sub(r"\\\w+\s*", "", r"\fs24 hello there") 'hello there' >>> re.sub(r"\\\w+\s*", "", "hello there") 'hello...
Python will replace those expressions with their resulting values. So, this behavior turns f-strings into a string interpolation tool.In the following sections, you’ll learn about f-strings and use them to interpolate values, objects, and expressions in your string literals....
有一个异常处理程序有两个选项:如果参数值是可编码的,那么就用backslashreplace 错误处理程序进行编码。否则,如果它不是可编码的,应该用sys.std.errors 错误处理程序进行编码。 示例:重复的sys.stdout 到一个日志文件 代码语言:python 代码运行次数:0 运行 AI代码解释 import sys # method for multiple log saving...
d = "multiple string literals" ' are concatenated ' '''by the parser''' e = "Escaping: quotes: \" \' backslash: \\ newline: \r\n ascii code: \x40" f = """triple-quoted strings may contain newlines, "single" 'quotes' and '''multiquotes''' of the other type""" ...