大家好，伊人来为大家解答以上问题。夺冠中朱婷为什么打球，朱婷个人资料很多人还不知道，现在让我们一起来看看吧！
What is the use of defining a anonymous structure within 开发者_如何学Pythona structure? When should this concept be used?I sometimes use it to create a union between some data:
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