Python | Decimal is_snan()方法
原文:https://www . geesforgeks . org/python-decimal-is _ snan-method/
Decimal # is _ snan():is _ snan()是一种 Decimal 类方法，用于检查 Decimal 值是否是信号 nan
语法: Decimal.is_snan()
参数:十进制值
返回:true–如果十进制值是信号 NaN 否则为假
代码# 1:is _ snan()方法示例
# Python Program explaining
# is_snan() 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_snan() method
print ("\n\nDecimal a with is_snan() method : ", a.is_snan())
print ("Decimal b with is_snan() method : ", b.is_snan())
输出:
Decimal value a : -1
Decimal value b : -NaN
Decimal a with is_snan() method : False
Decimal b with is_snan() method : False
代码# 2:is _ snan()方法示例
# Python Program explaining
# is_snan() 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_snan() method
print ("\n\nDecimal a with is_snan() method : ", a.is_snan())
print ("Decimal b with is_snan() method : ", b.is_snan())
输出:
Decimal value a : -3.14
Decimal value b : 3.21E+7
Decimal a with is_snan() method : False
Decimal b with is_snan() method : False
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