How can write method act similar to clone method of object?
如何写方法的行为类似于对象的克隆方法？
Clones the object original and returns the clone.
克隆原始物体并返回克隆物体。
A shallow clone of an object, by contrast, is a copy of the object only.
相比之下，对象的浅表克隆只是对象本身的副本。
A shallow clone of an object is a copy of the object only.
对象的浅表克隆只是对象本身的副本。
A shallow clone of an object is a copy of the object only.
对象的浅表克隆只是对象本身的副本。
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