我在最高级别的执行环境中理解,<代码>自封是某些预先界定的类别目标<代码>。 目标。
puts self.class.inspect #=> Object
而且
puts self.class.ancestors.inspect #=> [Object, Kernel, BasicObject]
但是,为什么我找不到这样的方法?
puts self.class.instance_methods.include?(:puts) #=> false
预计true ,因为Kernel 是includ in Object, 任何人能否告诉我,为什么会将false?
<编码>puts在Kernel中被定义为私人查询方法。
Kernel.private_instance_methods.include?(:puts) #=> true
我很想知道,为什么在<代码>Kernel的公开测试方法清单中,核心标识是puts。
原因之一是:
Kernel.instance_methods.include? :puts #=> false
and
self.private_methods.include? :puts #=> true
我想puts在上宣布为非公开。 目标。
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