@hexawing 我觉得这就是你思想有误了啊，楼主生成的是 7 位的随机字母，重复来说概率问题。

@teddyinfi 这样就跟 method(:passive).source 一样了，不用 to_s 了 哈哈，谢谢了

self.method(:passive).source == method(:passive).source  #=> true

@rubyist518

method(:passive).source  #可以输出，而且是String类型。不过需要在开头require 'method_source'
instance_method(:passive).source #提示报错，undefined method `instance_method' for main:Object (NoMethodError)，还没搞明白。。

@teddyinfi @IChou 昨天工作着急下班，刚才测试， 注意到

self.method(:passive).source.display               # 能输出passive方法的所有东西
self.method(:passive).source.display.class         #输出跟上边完全一样
p self.method(:passive).source.display.class       #输出为NilClass

虽然有输出，但是并不能引用。（已经在开头 require 'method_source'）

@teddyinfi 谢谢大哥，

@IChou

root@localhost:/home# gem install method_source

命令执行后，确实可以了

@1c7 就是想从外部获取 passive 方法中的某个关键字，比如上边

m << { :version=>@body.scan(/<p>Version ([\d\.]+)<\/p>/)[0][0] }

这行中的关键字“version”

@rubyist518 大概意思是把 passive 方法放到 class 类中，然后用类的 method 输出 source？百度找不到 source 什么鬼，求指教。

@teddyinfi @IChou 输出看了看：

[:each_index, :join, :rotate, :rotate!, :sort!, :sort_by!, :collect!, :map!, :select!, :keep_if, :values_at, :delete_at, :to_h, :delete_if, :reject!, :transpose, :include?, :rassoc, :uniq!, :assoc, :compact, :compact!, :flatten!, :shuffle!, :shuffle, :fill, :permutation, :combination, :sample, :repeated_permutation, :repeated_combination, :flatten, :bsearch, :product, :bsearch_index, :&, :*, :+, :-, :sort, :count, :find_index, :select, :reject, :collect, :map, :first, :any?, :pack, :reverse_each, :zip, :take, :take_while, :drop, :drop_while, :cycle, :sum, :uniq, :|, :insert, :index, :rindex, :<=>, :<<, :clear, :replace, :==, :[], :[]=, :empty?, :eql?, :reverse, :reverse!, :concat, :max, :min, :inspect, :length, :size, :each, :delete, :to_ary, :slice, :slice!, :to_a, :to_s, :dig, :hash, :frozen?, :at, :fetch, :last, :push, :pop, :shift, :unshift, :find, :entries, :sort_by, :grep, :grep_v, :detect, :find_all, :flat_map, :collect_concat, :inject, :reduce, :partition, :group_by, :all?, :one?, :none?, :minmax, :min_by, :max_by, :minmax_by, :member?, :each_with_index, :each_entry, :each_slice, :each_cons, :each_with_object, :chunk, :slice_before, :slice_after, :slice_when, :chunk_while, :lazy, :instance_of?, :kind_of?, :is_a?, :tap, :public_send, :define_singleton_method, :method, :public_method, :remove_instance_variable, :instance_variable_set, :singleton_method, :extend, :to_enum, :enum_for, :===, :=~, :!~, :respond_to?, :freeze, :object_id, :send, :display, :nil?, :class, :singleton_class, :clone, :dup, :itself, :taint, :tainted?, :untaint, :untrust, :untrusted?, :trust, :methods, :singleton_methods, :protected_methods, :private_methods, :public_methods, :instance_variable_get, :instance_variables, :instance_variable_defined?, :!, :!=, :__send__, :equal?, :instance_eval, :instance_exec, :__id__]

真的好像没有

大神你们先讨论，，我去 try it，，

我发的时候手动排版了啊，我错了。