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Python Decimal copy_sign()用法及代碼示例


Decimal#copy_sign():copy_sign()是一個Decimal類方法,它返回第一個Decimal值的副本,其符號設置為與第二個Decimal值的符號相同。

用法:
Decimal.copy_sign()

參數: 
Decimal values

返回:
the copy of the first Decimal value with the sign set
to be the same as the sign of the second Decimal value.

代碼#1:copy_sign()方法示例

# Python Program explaining  
# copy_sign() method 
  
# loading decimal library 
from decimal import *
  
  
# Initializing a decimal value 
a = Decimal(-1) 
  
b = Decimal('0.142857') 
  
# printing Decimal values 
print ("Decimal value a:", a) 
print ("Decimal value b:", b) 
  
  
# Using Decimal.copy_sign() method 
print ("\n\nDecimal a with copy_sign() method:", a.copy_sign(a)) 
  
print ("Decimal a with copy_sign() method:", a.copy_sign(b)) 
  
print ("Decimal b with copy_sign() method:", b.copy_sign(a))

輸出:


Decimal value a: -1
Decimal value b: 0.142857


Decimal a with copy_sign() method: -1
Decimal a with copy_sign() method: 1
Decimal b with copy_sign() method: -0.142857

代碼2:copy_sign()方法示例

# Python Program explaining  
# copy_sign() method 
  
# loading decimal library 
from decimal import *
  
  
# Initializing a decimal value 
a = Decimal('-3.14') 
  
b = Decimal('321e + 5') 
  
# printing Decimal values 
print ("Decimal value a:", a) 
print ("Decimal value b:", b) 
  
  
# Using Decimal.copy_sign() method 
print ("\n\nDecimal a with copy_sign() method:", a.copy_sign(a)) 
  
print ("Decimal a with copy_sign() method:", a.copy_sign(b)) 
  
print ("Decimal b with copy_sign() method:", b.copy_sign(a))

輸出:

Decimal value a: -3.14
Decimal value b: 3.21E+7


Decimal a with copy_sign() method: -3.14
Decimal a with copy_sign() method: 3.14
Decimal b with copy_sign() method: -3.21E+7


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注:本文由純淨天空篩選整理自noobestars101大神的英文原創作品 Python | Decimal copy_sign() method。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。