Python f-stringis a powerful and flexible string formatting method introduced in Python 3.6. Unlike older formatting techniques such as%-based formatting andstr.format(), f-strings are faster, more readable, and
Python's f-strings provide a readable way to interpolate and format strings. They're readable, concise, and less prone to error than traditional string interpolation and formatting tools, such as the .format() method and the modulo operator (%). F-string
在上面的示例中,使用了f-string来动态生成HTML标记。使用html.escape()函数对字符串进行转义,确保生成的HTML代码是安全的。 甘特图 为了更好地展示文章的结构和内容,我们可以使用甘特图来展示不同部分的时间安排。下面是一个使用mermaid语法绘制的甘特图示例: ```mermaid gantt dateFormat YYYY-MM-DD title Python htm...
Python f-string escaping characters The following example shows how to escape certain charactersinf-strings. escaping.py#!/usr/bin/pythonprint(f'Python uses {{}} to evaludate variables in f-strings')print(f'This was a \'great\' film') To escape a curly bracket, we double the character....
re.escape(pattern) 转义pattern 中的特殊字符。如果你想对任意可能包含正则表达式元字符的文本字符串进行匹配,它就是有用的。比如 >>> 代码语言:javascript 代码运行次数:0 运行 AI代码解释 >>> print(re.escape('http://www.python.org')) http://www\.python\.org >>> legal_chars = string.ascii...
You can concatenate ordinary characters, so lastmatches the string 'last'. (In the rest of this section, we’ll write RE’s in thisspecialstyle, usually without quotes, and strings to be matched 'insinglequotes'.) 某些字符,如'|'或'(',是特殊的。特殊字符不是代表的普通字符类,或会影响...
>>>'spam eggs'# single quotes'spam eggs'>>>'doesn\'t'# use \' to escape the single quote..."doesn't">>>"doesn't"#...or use double quotes instead"doesn't">>>'"Yes," he said.''"Yes," he said.'>>>"\"Yes,\" he said."'"Yes," he said.'>>>'"Isn\'t," she said...
another_triple_quote ="""Welcome to the Python programming language. Ready, 1, 2, 3, Go!""" # Using the str function string_function = str(123.45)# str converts float data type to string data type # Another str function another_string_function = str(True)# str converts a boolean da...
In this example, the backslash (\) before each single quote signals to Python that the following single quote is part of the string, not its closing delimiter. This allows the entire quote to be printed correctly. Similarly, the escape character can be employed when dealing with quotes that ...
string 对象的 split() 方法只适应于非常简单的字符串分割情形,它并不允许有多个分隔符或者是分隔符周围不确定的空格。当你需要更加灵活的切割字符串的时候,最好使用re.split()方法: >>> line = 'asdf fjdk; afed, fjek,asdf, foo' >>> import re ...