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
Master Python's f-strings, the most elegant way to handle string formatting in your code. This guide covers everything from basic syntax to advanced techniques. Learn how to write cleaner, more maintainable code with real-world examples. ...
7.3 f-string f-string是2015年python 3.6 根据PEP 498新添加的一种字符串格式化方法,f-string实际上是在运行时计算的表达式,而不是常量值。在Python源代码中,f-string是一个文字字符串,前缀为’f’,其中包含大括号内的表达式。表达式会将大括号中的内容替换为其值。例如 import datetime name = "zings" age ...
AI代码解释 (1)s:string,字符串;(2)d:decimal integer,十进制数;(3)i:integer,用法同%d;(4)u:unsigned integer,无符号十进制数;(5)f:float,浮点数(默认保留小数点后6位);(6)F:Float,浮点数(默认保留小数点后6位);(7)e:exponent,将数字表示为科学计数法(小写e,默认保留小数点后6位);(8)E:Expone...
(1) s: string, 字符串; (2) d: decimal integer, 十进制数; (3) i: integer, 用法同%d; (4) u: unsigned integer, 无符号十进制数; (5) f: float, 浮点数(默认保留小数点后6位); (6) F: Float, 浮点数(默认保留小数点后6位); (7) e: exponent, 将数字表示为科学计数法(小写e, 默认...
print(f"第 {day} 天是星期 {weekday}")```2. 字符串格式化符 除了取模,`%` 在 Python 中还被用作字符串格式化符,类似于模板的占位符。它允许我们将变量插入到字符串中,构造动态内容。基本语法:```python formatted_string = "文本内容 %占位符" % (变量)```常见占位符: `%s`:表示字符串...
一、3种方式 %格式化 已淘汰 format格式化(python2.6新增)不好用,处于淘汰的边缘。f-string格式化(...
# string modulo operator(%) to print # fancier output # print integer and float value print("Geeks : %2d, Portal : %5.2f" % (1, 05.333)) # print integer value print("Total students : %3d, Boys : %2d" % (240, 120))
Python's string formatting syntax allows us to inject objects (often other strings) into our strings. >>>name="Trey">>>print(f"My name is{name}. What's your name?")My name is Trey. What's your name? We can even embed expressions: ...
"{" [[identifier | integer]("." identifier | "[" integer | index_string "]")*]["!" "r" | "s" | "a"] [":" format_spec] "}" 其中,用来控制参数显示时的格式,包括:,<.精度>6 个字段,这些字段都是可选的,可以组合使用,逐一介绍如下。 常用表达 指定位置 代码语言:javascript 代码运行...