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Python Decimal next_toward()用法及代码示例

Decimal#next_toward():next_toward()是一个Decimal类方法,它在朝着第二个十进制值的方向返回最接近第一个十进制值的数字。

用法: Decimal.next_toward()

参数:十进制值


返回:在朝向第二个十进制值的方向上最接近第一个十进制值的数字。

代码1:next_toward()方法示例

# Python Program explaining  
# next_toward() 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.next_toward() method 
print ("\n\nDecimal a with next_toward() method : ", a.next_toward(b)) 
  
print ("Decimal b with next_toward() method : ", b.next_toward(b))

输出:

Decimal value a :  -1
Decimal value b :  0.142857


Decimal a with next_toward() method :  -0.9999999999999999999999999999
Decimal b with next_toward() method :  0.142857

代码2:next_toward()方法的示例

# Python Program explaining  
# next_toward() 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.next_toward() method 
print ("\n\nDecimal a with next_toward() method : ", a.next_toward(b)) 
  
print ("Decimal b with next_toward() method : ", b.next_toward(b))

输出:

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


Decimal a with next_toward() method :  -3.139999999999999999999999999
Decimal b with next_toward() method :  3.21E+7



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