在f-字符串调试中,您还可以执行数学运算,就像在最后一行中看到的那样。 x = 10 y = 20 print(f"x = {x}, y = {y}") print(f"{x = }, {y = }") # math operations print(f"{x * y = }") 2.数字格式化(Number formatting) 使用f-字符串,您可以对字符串执行多种格式化和转换操作。以下...
number=15# 十六进制转换print(f"hex: {number:#0x}")# hex:0xf# 二进制转换print(f"binary: {number:b}")# binary:1111# 八进制转换print(f"octal: {number:o}")# octal:17# 科学计数法print(f"scientific: {number:e}")# scientific:1.500000e+01 f-string千位符分隔符、百分比 千位符分隔符和百...
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 less prone to errors. They simplify string manipulation while maintaining excellent perfo...
string literal 或f-string 是以“f”或“F”为前缀的字符串字面量。 这些串可能包含替换字段,这些字段是由大括号{} 分隔的表达式。 虽然字符串文字始终具有常量值,但格式化字符串实际上是在运行时计算的表达式。 序列 序列像在普通字符串文字中一样解码(除非文字也被标记为原始字符串)。 解码,字符串内容...
F-String was introduced in Python 3.6, and is now the preferred way of formatting strings. Before Python 3.6 we had to use theformat()method. F-Strings F-string allows you to format selected parts of a string. To specify a string as an f-string, simply put anfin front of the string...
Python string formatting The following example summarizes string formatting optionsinPython.#!/usr/bin/pythonname='Peter'age= 23print('%s is %d years old'%(name, age))print('{} is {} years old'.format(name, age))print(f'{name} is {age} years old')>>>print('%s is %d years old'...
F-strings The str.format() method The modulo operator (%) The first two tools support the string formatting mini-language, a feature that allows you to fine-tune your strings. The third tool is a bit old and has fewer formatting options. However, you can use it to do some minimal form...
Perform a string formatting operation. The string on which this method is called can contain literal text or replacement fields delimited by braces {}. Each replacement field contains either the numeric index of a positional argument, or the name of a keyword argument. Returns a copy of the st...
This pattern is useful when you want to provide multiple string representations of an object that can be selected at formatting time. Best PracticesUse f-strings for simple cases: Prefer f-strings in Python 3.6+ for readability Implement __format__: For custom objects that need formatting ...
:gGeneral format :GGeneral format (using a upper case E for scientific notations) :oTry itOctal format :xTry itHex format, lower case :XTry itHex format, upper case :nNumber format :%Try itPercentage format ❮ String Methods