Ruby问题与class_eval

Question

I'm trying to run the following but i keep getting a

"NoMethodError: undefined method `bar=' for #/Foo:0x86f69ba/"

    class Class
    def my_attr_accessor(name)

    attr_name = name.to_s  
    attr_reader name       
    attr_reader "my_"+name 
    class_eval %Q"def #{name}=(val)
                 @#{name}=val
                 end"
      end

    end

I'm actually using something similar to this post: Ruby - Using class_eval to define methods

EDITED: you're quite right I made the change to reflect this.. thanks a lot.

Answer 1

class_eval是一个方法，但是你在这里分配一个变量（ class_eval = ）