[1] pry(main)> class A [1] pry(main)* class << self [1] pry(main)* attr_accessor :a [1] pry(main)* def set_a(b) [1] pry(main)* @a=b [1] pry(main)* end [1] pry(main)* def show_a [1] pry(main)* @a [1] pry(main)* end [1] pry(main)* end [1] pry(main)* end => :show_a [2] pry(main)> A.set_a(100) => 100 [3] pry(main)> A.show_a => 100 [4] pry(main)> A.a => 100 [5] pry(main)>
ruby class attribute
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转载自j4s0nh4ck.iteye.com/blog/2234098
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