红宝石 | BigDecimal 类哈希值
BigDecimal#hash() : hash()是一个 BigDecimal 类方法,它返回 BigDecimal 值的哈希值。
Syntax: BigDecimal.hash()
Parameter: BigDecimal values to find the hash part of the value
Return: hash value for the BigDecimal value
代码 #1:hash() 方法的示例
# Ruby code for hash() method
# loading BigDecimal
require 'bigdecimal'
# declaring BigDecimal
a = 42.1**13
# declaring BigDecimal
b = -BigDecimal("10")
# declaring BigDecimal
c = -(22 ** 7.1) * 10
# a
puts "hash value of a : #{a.hash}\n\n"
# b
puts "hash value of b : #{b.hash}\n\n"
# c
puts "hash value of c : #{c.hash}\n\n"
输出 :
hash value of a : -356173160844341091
hash value of b : -3967525242845538832
hash value of c : -3453672420229872218
代码 #2:hash() 方法的示例
# Ruby code for hash() method
# loading BigDecimal
require 'bigdecimal'
# declaring BigDecimal
a = 12**12 - 27
# declaring BigDecimal
b = BigDecimal('10')-(22 ** 7.1) ** 10
# declaring BigDecimal
c = BigDecimal('-3')
# a
puts "hash value of a : #{a.hash}\n\n"
# b
puts "hash value of b : #{b.hash}\n\n"
# c
puts "hash value of c : #{c.hash}\n\n"
输出 :
hash value of a : -3561916586715218903
hash value of b : 1852347221456838115
hash value of c : 1714082193134741719