Python provides the built-in string (str) data type to handle textual data. Other programming languages, such as Java, have a character data type for single characters. Python doesn’t have that. Single characters are strings of length one. In practice, strings are immutable sequences of char...
In addition,Python’s strings support the sequence type methods described in the Sequence Types — str, unicode, list, tuple, buffer, xrange section. To output formatted strings use template strings or the % operator described in the String Formatting Operations section. Also, see the re module ...
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!
r means the string will be treated as raw string. Fromhere: When an 'r' or 'R' prefix is present, a character following a backslash is included in the string without change, and all backslashes are left in the string. For example, the string literal r"\n" consists of two characters:...
escape character 可以将后面的字符转义 原来字符是\ 将n进行转义 这个\是一个转义字符 \n是一个转义序列 转为换行符 也可以直接转义输出 "\xhh" "\x0a" "\ooo" "\012" 8进制数 16进制数 \反斜杠 backslash 是转义字符 如果 想要输出的字符
sub) Help on function sub in module re: sub(pattern, repl, string, count=0, flags=0) Return the string obtained by replacing the leftmost non-overlapping occurrences of the pattern in string by the replacement repl. repl can be either a string or a callable; if a string, backslash ...
>>> a = "Python string" >>> print (a) Python string >>> b = a[2] >>> print(b) t >>> a[0] 'P' >>> Explanation : The above statement selects character at position number 2 from a and assigns it to b. The expression in brackets is called an index that indicates which ...
Escape Character a backslash \ to insert characters that are illegal in a string txt = "my name is \"yxy\"!" \' single quote \" double quote \n new line \r carriage return(another term for return) \t tab \b backspace \f form feed ( formfeed: strA = "s{2}\ft{1}r{0}A"...
The string is: pythön! The encoded version (with ignore) is: b'pythn!' The encoded version (with replace) is: b'pyth?n!' Note:Try different encoding and error parameters as well. String Encoding Since Python 3.0, strings are stored as Unicode, i.e. each character in the string is...
In Python, if a single line statement is getting lengthy, we can use the Python continuation character\(backslash) to break the statement into multiple lines for better legibility. And according to the Python syntax, the continuation character must be the last character of that line, and if a...