python中可以对string, int, float等数据类型进行格式化操作。下面举例来说明一些常用操作。 先贴出 python 对 String Formatting Operations 讲解的连接,后面的例子和内容都以它为参考。 - flags '#' : '0' : 用'0'进行填充 '-' : 左对齐 ' ' : 对于数字来说,整数前面会有个空格,负数不收到影响 '+'...
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...
>> my_binary = 0b11111001110 >> my_hex = 0x7e7 >> f'Binary num is {my_binary:d}, hex num is {my_hex:d}' 'Binary num is 1998, hex num is 2023'str.format 定义的那套 FORMATTING 迷你语言,也完全适用于 f-string 中的 {}。
模板字串(Template String) 模板字串(Template String)机制相对简单,也比较安全。 以下是一般的使用情境,需要从Python内建模组string 引入: fromstringimportTemplate text ='world't = Template('hello, $text') t.substitute(text=text)# hello, world 然而若是希望把内容变成成十六进位的话需要自己使用hex函式...
以下是一般的使用情境,需要从Python内建模组string 引入: from string import Template text = 'world' t = Template('hello, $text') t.substitute(text=text) # hello, world 1. 2. 3. 4. 5. 6. 然而若是希望把内容变成成十六进位的话需要自己使用hex函式自己转换: ...
String formatting is essential in Python for creating dynamic and well-structured text by inserting values into strings. This tutorial covers various methods, including f-strings, the .format() method, and the modulo operator (%). Each method has unique features and benefits for different use cas...
(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:Exponent,将数字表...
Example 2: Simple number formatting # integer arguments print("The number is:{:d}".format(123)) # float arguments print("The float number is:{:f}".format(123.4567898)) # octal, binary and hexadecimal format print("bin: {0:b}, oct: {0:o}, hex: {0:x}".format(12)) Run Code ...
python3.6以后开始支持f-string字符串。f-string即formatting string, 它是str.format()的一个变种,其语法形式之殊途同归,很多时候使用f-string可以有效减少代码量,更为清晰易懂。语法:f"{}{}{}" 2.示例 (1) name = "Zack" age = 18 print(f"|我是{name}, 今年{age}岁|") >>> |我是Zack, 今年...
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...