Python | Decimal compare()方法
原文:https://www . geesforgeks . org/python-decimal-compare-method/
Decimal # compare():compare()是比较两个 Decimal 值的 Decimal 类方法。
语法:十进制.比较()
参数:十进制值
返回: 1–如果 a>b -1–如果 a<b 0–如果 a = b
代码# 1:compare()方法示例
# Python Program explaining
# compare() 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.compare() method
print ("\n\nDecimal a with compare() method : ", a.compare(a))
print ("Decimal a with compare() method : ", a.compare(b))
print ("Decimal b with compare() method : ", b.compare(a))
输出:
Decimal value a : -1
Decimal value b : 0.142857
Decimal a with compare() method : 0
Decimal a with compare() method : -1
Decimal b with compare() method : 1
代码# 2:compare()方法示例
# Python Program explaining
# compare() 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.compare() method
print ("\n\nDecimal a with compare() method : ", a.compare(a))
print ("Decimal a with compare() method : ", a.compare(b))
print ("Decimal b with compare() method : ", b.compare(a))
输出:
Decimal value a : -3.14
Decimal value b : 3.21E+7
Decimal a with compare() method : 0
Decimal a with compare() method : -1
Decimal b with compare() method : 1
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