To create a helper superclass that changes the property weight of an object

按照下面的方法，来创建一个帮助者超类（helper superclass），帮助更改一个对象的属性权重

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Small changes can have a significant impact on children's weight.

一些小的改变可以对孩子的体重有着重要的影响。

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What lifestyle changes do you think would help you lose weight?

生活方式的改变是什么，你认为会帮助你减肥？

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What lifestyle changes do you think would help you lose weight?

生活方式的改变是什么，你认为会帮助你减肥？

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