我的守则
def property_values_list
property_values = {"ceremonial"=>249, "party"=>250, "wedding"=>251, "casual"=>252}
end
$property_values = property_values_list()
class Design
attr_reader :occasion_ids
def occasion_ids=(property_name)
self.occasion_ids = []
self.occasion_ids << $property_values[property_name]
end
end
d = Design.new
d.occasion_ids = 'party'
错误
SystemStackError:堆栈级别太深了.rvm / rubies / ruby-1.9.3-p545 / lib / ruby / 1.9.1 / irb / workspace.rb:80也许是IRB错误!
1 回答
这不是一个错误,它只是一个无限递归,因为你调用从方法本身分配方法
occasion_ids=
:分配给实例变量: