Python | Decimal scaleb()方法
原文:https://www.geeksforgeeks.org/python-decimal-scaleb-method/
Decimal # scaleb():scaleb()是一个 Decimal 类方法，在将第二个值与其 exp 相加后返回第一个操作数。
语法: Decimal.scaleb()
参数:十进制值
返回:将第二个值与其 exp 相加后的第一个操作数。
代码# 1:scaleb()方法示例
# Python Program explaining
# scaleb() method
# loading decimal library
from decimal import *
# Initializing a decimal value
a = Decimal(1)
b = Decimal(0)
# printing Decimal values
print ("Decimal value a : ", a)
print ("Decimal value b : ", b)
# Using Decimal.scaleb() method
print ("\n\nDecimal a with scaleb() method : ", a.scaleb(b))
print ("Decimal b with scaleb() method : ", b.scaleb(b))
输出:
Decimal value a : 1
Decimal value b : 0
Decimal a with scaleb() method : 1
Decimal b with scaleb() method : 0
代码# 2:scaleb()方法示例
# Python Program explaining
# scaleb() method
# loading decimal library
from decimal import *
# Initializing a decimal value
a = Decimal(3)
b = Decimal(2)
# printing Decimal values
print ("Decimal value a : ", a)
print ("Decimal value b : ", b)
# Using Decimal.scaleb() method
print ("\n\nDecimal a with scaleb() method : ", a.scaleb(b))
print ("Decimal b with scaleb() method : ", b.scaleb(b))
输出:
Decimal value a : 3
Decimal value b : 2
Decimal a with scaleb() method : 3E+2
Decimal b with scaleb() method : 2E+2
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