Ruby--instance_variable_get(@xx)
摘要：instance_variable_get(var)ruby 1.8 特性取得并返回对象的实例变量的值.可以使用字符串或者Symbol来向var指定实例变量名.若实例变量尚未定义,则返回nil.class Foo def initialize @foo = 1 endendobj = Foo.newp obj.instance_variable_get("@foo") # => 1p obj.instance_variable_get(:@foo) # => 1p obj.instance_variable_get(:@bar) # => nilinsta
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posted @ 2013-02-13 00:20
