1 2 3 4 5 User.new.method(:order_commissions).source_location # => ["....../vendor/bundle/gems/activerecord-4.2.6/lib/active_record/associations/builder/association.rb", 114] User.method(:generate_token).source_location # ["....../app/models/user.rb", 50] 这真的没有语法错误 = . = 1 2 3 4 v1, = [["a", "b", "c"], "d", "e"] v2, = v1 [33] pry(main)> v2 => "a" 赞微海报分享
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