设计一个圆类,具有属性:圆心(点)、半径。添加一个方法:判断一个圆是否包含一个点。 知乎 Template




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tomski设计一个圆类,具有属性:圆心(点)、半径。添加一个方法:判断一个圆是否包含一个点。 知乎 coloring