What is the use of f-Strings in Python

This article mainly introduces the use of f-Strings in Python, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

1. Variable name str_value = "hello,python coders" print (f "{str_value =}") # str_value = 'hello Python coders'2, directly change the output num_value = 123print (f "{num_value% 2 =}") # num_value% 2 = 13, direct format date import datetime today = datetime.date.today () print (f "{today:% Y%m%d}") # 20211019 print (f "{today =:% Y%m%d}") # today = 202110194, The 2-8-16 binary output is really too simple > a = 42 > f "{avision b}" # 2 base '101010' > > f "{abureo}" # 8 base'52'> > f "{avision x}" # 16 base Lowercase letter'2a'> > f "{av X}" # hexadecimal Uppercase letters'2A'> > f "{ascii}" # ascii code'*'5, formatted floating point number > > num_value = 123.456 > f' {num_value =: .2f}'# keep 2 decimal places' num_value = 123.46'> nested_format = ".2f" # can be used as a variable > print (f'{num_value: {nested_format}') 123.466, String alignment > x = 'test' > f' {x: > 10}' # right alignment Fill in the blanks on the left 'test' > f' {XRV *