pi=3.1415926formatted_pi=f"Pi rounded to two decimal places: {pi:.2f}"print(formatted_pi)# 输出: Pi rounded to two decimal places: 3.14调用方法和函数在花括号中调用对象的方法或任意函数。name="alice"formatted_name=f"Capitalized n
F-string在Python中的用法 F-string(格式化字符串字面量)是Python 3.6及更高版本中引入的一种新的字符串格式化机制。它提供了一种简洁且高效的方式来嵌入表达式到字符串常量中。以下是关于f-string的详细用法和示例: 基本语法 F-string通过在字符串前加上一个小写的f或大写的F来标识,并在花括号{}内直接插入变量...
F-strings also support format specifiers that control numerical precision, alignment, and padding. Format specifiers are added after a colon (:) inside the curly brackets. For instance,f'{price:.3f}'ensures that the floating-point number stored inpriceis rounded to three decimal places: price =...
Strings can beconcatenatedto build longer strings using the plus sign and also they can bemultipliedby a number, which results in the continuous repetition of the string as many times as the number indicates. Also, if we want to find out thelengthof the string, we simply have to use thelen...
This method improves code readability and maintainability by embedding the expressions directly inside string literals. The code below prints 14.68. # Example number to be rounded number = 14.67856 # Using f-strings to round to 2 decimal places formatted_number = f"{number:.2f}" print(formatted...
Python’s f-strings support two flags with special meaning in the interpolation process. These flags are closely related to how Python manages the string representation of objects. These flags are:FlagDescription !s Interpolates the string representation from the .__str__() method !r Interpolate...
Format the price to be displayed as a number with two decimals: txt ="The price is {:.2f} dollars" Try it Yourself » Check out all formatting types in ourString format() Reference. Multiple Values If you want to use more values, just add more values to the format() method: ...
12.30000The output shows the number having twoandfive decimal places. Python f-string format width The width specifier sets the width of the value. The value may be filled with spacesorother charactersifthe valueisshorter than the specified width. ...
We use theformat()function to round numbers up by giving the string format as.2f. Thefin this format denotes a floating value, and the.2specifies that the value must have two decimal places. Syntax "{:0.2f}".format(number) Python Django round to two decimal places view-format() function...
If you want more control, for example, to add extra padding around the plus operator, then the f-string will be a better choice: Python >>> f"{z.real:.2f} + {z.imag:.2f}j" '1.82 + 0.55j' You can also call .format() on a string object and pass positional or keyword argu...