The padding value represents the length of the complete output for floating points. In the following example '{:05.2f}' will display the float using five characters with two digits after the decimal point.Exampl
String objects have a built-in functionality to make format changes, which also include an additional way of concatenating strings. Let’s take a look at it: In the example above, I generated a new string based on the input values of two already-created variables by using thecurly brackets ...
string_function = str(123.45) # str() converts float data type to string data type # Another str() function another_string_function = str(True) # str() converts a boolean data type to string data type # An empty string empty_string = '' # Also an empty string second_empty_string ...
Perform a string formatting operation. The format_string argument 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 format_string where each...
string模块在最早的Python版本中就已经有了。以前这个模块中提供的很多函数已移值为str对象的方法,不过这个模块仍保留了很多有用的常量和类的处理str对象。 1. 1、把字符串所有单词首字母变成大写 import string s = 'The quick brown fox jumped over the lazy dog.' ...
s = "" s += "A" s += "B" s += "C" print(s) """ import random import string char = string.ascii_letters + string.digits count = 0 randomCodes = "" while count < 10: code = random.choice(char) randomCodes += code count += 1 print(randomCodes)...
3 = 14 * 3 = 124 / 3 = 1.334 % 3 = 14 // 3 = 14 ** 3 = 64# Strings and numbersradius = 10pi = 3.14area = pi * radius ** 2formated_string = 'The area of a circle with a radius {} is {:.2f}.'.format(radius, area) # 2 digits after decimalprint(formated_string)...
>>> str='string learn' >>> dir(str) ['__add__', '__class__', '__contains__', '__delattr__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__getitem__', '__getnewargs__', '__getslice__', '__gt__', '__hash__', '__init__...
This outputs 230.235. The decimal part is truncated after 3 places and remaining digits are rounded off. Likewise, the total width is assigned 9 leaving two spaces to the left. Basic formatting with format() Theformat()method allows the use of simple placeholders for formatting. ...
The.Nfformat specifier (whereNis a whole number) will format a number to showNdigits after the decimal point. This is calledfixed-point notation(yet another term you don't need to remember). Given these two numbers: >>>frommathimportpi>>>n=4 ...