在Python3.6之前,有两种将Python表达式嵌入到字符串文本中进行格式化的主要方法:%-formatting和str.format()。 从Python 3.6开始,f-string是格式化字符串的一种很好的新方法。与其他格式化方式相比,它们不仅更易读,更简洁,不易出错,而且速度更快! 在后文中f-string被称为F字符串。 先说下%-formatting和str.format(...
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...
6及以后的版本,推荐使用f-string进行字符串格式化。 用法 此部分内容主要参考以下资料: Python Documentation – Formatted String Literals Python Documentation – Format String Syntax PEP 498 – Literal String Interpolation Python 3’s f-Strings: An Improved String Formatting Syntax (Guide) python3 f-...
插值格式字符串f-string Python 3.6添加了一种新的特性,叫作插值格式字符串(interpolated format string,简称f-string),可以解决上面提到的所有问题。 下面按照从短到长的顺序把这几种写法所占的篇幅对比一下,这样很容易看出符号右边的代码到底有多少。C风格的写法与采用str.format方法的写法可能会让表达式变得很长,...
f-string在功能方面不逊于传统的%-formatting语句和str.format()函数,同时性能又优于二者,且使用起来也更加简洁明了,因此对于Python3.6及以后的版本,推荐使用f-string进行字符串格式化。 1、f-string用大括号{}表示被替换字段,其中直接填入替换内容: 2、如何格式化一个表达式 ...
f-string,亦称为格式化字符串常量(formatted string literals),是Python3.6新引入的一种字符串格式化方法,该方法源于PEP 498 – Literal String Interpolation,主要目的是使格式化字符串的操作更加简便。f-string在形式上是以 f 或 F 修饰符引领的字符串(f'xxx'或 F'xxx'),以大括号 {} 标明被替换的字段;f-str...
Python f-string tutorial shows how to format strings in Python with f-string. Python f-strings provide a faster, more readable, concise, and less error prone way of formatting strings in Python.
We have different string formatting techniques in Python. We are now going to explore the new f-string formatting technique. f-string evaluates at runtime of the program. It's swift compared to the previous methods. f-string having an easy syntax compared to previous string formatting ...
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
F-String was introduced in Python 3.6, and is now the preferred way of formatting strings. To specify a string as an f-string, simply put anfin front of the string literal, and add curly brackets{}as placeholders for variables and other operations. ...