Python | Decimal is_qnan()方法
原文:https://www . geesforgeks . org/python-decimal-is _ qnan-method/
Decimal # is _ qnan():is _ qnan()是 Decimal 类方法，检查 Decimal 值是否是相当 nan 的值。
语法: Decimal.is_qnan()
参数:十进制值
返回:true–如果十进制值相当于 NaN 值；否则为假
代码# 1:is _ qnan()方法示例
# Python Program explaining
# is_qnan() 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_qnan() method
print ("\n\nDecimal a with is_qnan() method : ", a.is_qnan())
print ("Decimal b with is_qnan() method : ", b.is_qnan())
输出:
Decimal value a : -1
Decimal value b : NaN
Decimal a with is_qnan() method : False
Decimal b with is_qnan() method : True
代码# 2:is _ qnan()方法示例
# Python Program explaining
# is_qnan() 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_qnan() method
print ("\n\nDecimal a with is_qnan() method : ", a.is_qnan())
print ("Decimal b with is_qnan() method : ", b.is_qnan())
输出:
Decimal value a : -3.14
Decimal value b : 3.21E+7
Decimal a with is_qnan() method : False
Decimal b with is_qnan() method : False
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