# 输出'Left-aligned string: Lily '# 其他进制示例print("Binary: %b"%x)# 输出'Binary: 1010'print("Octal: %#o"%x)# 输出'Octal: 0o12'print("Hexadecimal: %#x"%x)# 输出'Hexadecimal: 0xa'# 字符串格式化拓展示例print("Value of x is {}, My name is {}, I am {} years old".forma...
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...
示例：name = 'Alice'age = 25formatted_string = "My name is {} and I am {} years old.".format(name, age)print(formatted_string)输出结果：My name is Alice and I am 25 years old.2. 使用位置参数：可以通过位置参数指定要替换的值的顺序。示例：name = 'Bob'age = 30formatted_string = ...
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 literal, like this: ExampleGet your own Python Server ...
: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
>>> "%d" % 123.123 # As an integer '123' >>> "%o" % 42 # As an octal '52' >>> "%x" % 42 # As a hex '2a' >>> "%e" % 1234567890 # In scientific notation '1.234568e+09' >>> "%f" % 42 # As a floating-point number '42.000000' In these examples, you’ve used ...
print(f"scientific: {number:e}") print(f"Number: {number:09}") print(f"千分位表示法: {number:,}") 或者,如果您希望f字符串输出百分比值,可以使用:.2%,这会告诉Python将值设置为小数点后两位,并在字符串末尾添加百分号。 percentage = 0.1234 ...
使用scientific notation表示数字 科学技术法是一种用于表示很大或者很小的数字的方法,通常以数字乘以10的幂的形式来表示。例如,1.23 x 10^6表示为1.23e6。 在Python中,科学技术法表示的数字可以直接赋值给变量,例如: num=1.23e6print(num) 1. 2. 将科学技术法转换为字符串 ...
F-strings offer precise control over how positive and negative numbers are displayed, including whether to show the plus sign for positive numbers. This is important for financial reports, scientific notation, and any context where the sign of a number matters. ...
本文主要总结在Python中如何使用格式化字符串常量f-string(Formatted string literals)。在 Python 程序中,大部分时间都是使用 %s 或 format 来格式化字符串,在 Python 3.6 中新的选择 f-string可以用于格式化字符串。相比于其他字符串格式方式,f-string更快,更易读,更简明且不易出错。f-string通过f或 F 修饰字符...