Ruby BigDecimal nonzero? 函数
BigDecimal#nonzero?() : nonzero?()是BigDecimal类的一个方法,用于检查BigDecimal值是否为非零。
语法。BigDecimal.nonzero?()
参数。要检查的BigDecimal值
返回:self : 如果值为非零;否则为nil
代码#1:nonzero?()方法的例子
# Ruby code for nonzero?() method
# loading BigDecimal
require 'bigdecimal'
# declaring BigDecimal
a = 42.1**13
# declaring BigDecimal
b = -BigDecimal("10")
# declaring BigDecimal
c = -(22 ** 7.1) * 10
puts "nonzero? example 1 : #{a.nonzero?()}\n\n"
puts "nonzero? example 2 : #{b.nonzero?()}\n\n"
puts "nonzero? example 3 : #{c.nonzero?()}\n\n"
```
输出:
```ruby
nonzero? example 1 : 1.3051704902006439e+21
nonzero? example 2 : -0.1E2
nonzero? example 3 : -33978252067.813686
代码#2:非零?()方法的例子
# Ruby code for nonzero?() method
# loading BigDecimal
require 'bigdecimal'
# declaring BigDecimal
b = BigDecimal('10')-(22 ** 7.1) ** 10
# declaring BigDecimal
c = BigDecimal('-3')
puts "nonzero? example 2 : #{b.nonzero?()}\n\n"
puts "nonzero? example 3 : #{c.nonzero?()}\n\n"
输出:
nonzero? example 2 : -0.20512110073058639999999999999999999999999999999999999999999999999999999999999999999999999999999E96
nonzero? example 3 : -0.3E1