红宝石 | BigDecimal +@ 值
BigDecimal#+@() : +@()是一个 BigDecimal 类方法,它返回自己的值。它的工作方式为+@a = +(a)
Syntax: BigDecimal.+@()
Parameter: BigDecimal value
Return: Self
代码 #1:+@() 方法的示例
# Ruby code for BigDecimal.+@() method
# loading BigDecimal
require 'bigdecimal'
# declaring BigDecimal
a = -42.1 ** 13
# declaring BigDecimal
b = -BigDecimal("10")
# declaring BigDecimal
c = -(22 + 7.1)+ 10
# positive self value = +(value)
puts "+@a : #{+a}\n\n"
# positive self value = +(value)
puts "+@b : #{+b}\n\n"
# positive self value = +(value)
puts "+@c : #{+c}\n\n"
输出 :
+@a : -1.3051704902006439e+21
+@b : -0.1E2
+@c : -19.1
代码 #2:+@() 方法的示例
# Ruby code for BigDecimal.+@() 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')
# positive self value = +(value)
puts "+@a : #{+a}\n\n"
# positive self value = +(value)
puts "+@b : #{+b}\n\n"
# positive self value = +(value)
puts "+@c : #{+c}\n\n"
输出 :
+@a : -8916100448283
+@b : -0.864590173821032799999E22
+@c : -0.3E1