The implicit conversion operator is defined, which converts a Point type to int.

隐式转换操作符将 Point 类型转换为 int。

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Explains the concept of type conversion and the distinction between implicit and explicit conversion.

解释类型转换的概念以及隐式和显式转换的不同。

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A constructor that can be called with a single argument defines an implicit conversion from the parameter type to the class type.

可以用单个实参来调用的构造函数定义了从形参类型到该类类型的一个隐式转换。

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