设置Ruby对象的动态属性 [英] Set Attribute Dynamically of Ruby Object

问题描述

如何在Ruby中动态设置对象属性？

How can I set an object attribute dynamically in Ruby e.g.

def set_property(obj, prop_name, prop_value)
    #need to do something like > obj.prop_name = prop_value 

    #we can use eval but I'll prefer a faster/cleaner alternative:
    eval "obj.#{prop_name} = #{prop_value}"
end

推荐答案

使用发送：

def set_property(obj, prop_name, prop_value)
    obj.send("#{prop_name}=",prop_value)
end

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