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。 用法 此部分内容主要参考以下资料: Python Documentation – Formatted String Literals Python
将数值乘以100然后以fixed-point('f')格式打印,值后面会有一个百分号。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 1 >>> print('{0:b}'.format(3)) 2 11 3 >>> print('{:c}'.format(20)) 4 5 >>> print('{:d}'.format(20)) 6 20 7 >>> print('{:o}'.format(20)) 8...
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...
F-strings provide powerful options for formatting numbers. You can pad numbers with leading zeros to ensure fixed-width output, or use commas as thousands separators to make large numbers easier to read. These features are especially helpful for reports, tables, or any output where alignment and ...
> "Scientific: {0:e}; Fixed-point: {0:f}; General format: {0:g}".format5.2) 'Scientific: 5.200000e+00; Fixed-point: 5.200000; General format: 5.2' >>> 'Correct answers: {:.2%}'.format19/22) 'Correct answers: 86.36%'
Format String SyntaxPEP 3101 – Advanced String FormattingPython format 格式化函数Python之format详解Python高级编程 1. 术语说明 str.format() 方法通过字符串中的花括号 {} 来识别替换字段 replacement field,从而完成字符串的格式化。替换字段 由字段名 field name 和转换字段 conversion field 以及格式说明符 form...
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-...
center(width[, fillchar]):将字符串居中,并用fillchar(默认为空格)填充至width ljust(width[, fillchar]):将字符串靠左,并用fillchar(默认为空格)填充至width rjust(width[, fillchar]):将字符串靠右,并用fillchar(默认为空格)填充至width 注意:如果width小于字符串宽度则直接返回字符串,不会截断输出 ...
Space-padding can be helpful if you're lining up numbers in a fixed-width setting (in a command-line program for example). If you prefer, you can add a space before theNdspecifier (so it'll look more like its sibling, the0Ndmodifier): ...
# integer numbers with minimum width print("{:5d}".format(12)) # width doesn't work for numbers longer than padding print("{:2d}".format(1234)) # padding for float numbers print("{:8.3f}".format(12.2346)) # integer numbers with minimum width filled with zeros print("{:05d}".forma...