📜  Python|十进制 is_nan() 方法

📅  最后修改于: 2022-05-13 01:54:57.684000             🧑  作者: Mango

Python|十进制 is_nan() 方法

Decimal#is_nan() : is_nan()是一个 Decimal 类方法,用于检查 Decimal 值是否为 NaN 值。

代码 #1:is_nan() 方法的示例

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

输出 :

Decimal value a :  -1
Decimal value b :  NaN


Decimal a with is_nan() method :  False
Decimal b with is_nan() method :  True

代码 #2:is_nan() 方法的示例

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

输出 :

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


Decimal a with is_nan() method :  False
Decimal b with is_nan() method :  False