Python 的多态不需要继承关系，靠鸭子类型就够了。它把类型检查推迟到运行时，换来的是更少的样板代码和更灵活的扩展方式。 我记得我学 Python 多态那会儿，教材上来就是"继承"、"运行时绑定"。概念堆概念，看完一章，脑子里依然一团浆糊。 后来在实际项目 ...

In Mojo, many types are defined using struct. A design feature is its nominal type system. # x, y を持つ struct が二つあっても、名前が違えば別の型（名義的） @fieldwise_init struct Point2D: var x: Int var y: Int ...

In Python, functions usually focus on what an object can do rather than what type it is. This makes code more flexible and reusable because the same function can interact with many different object ...

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Python and Mojo have similar syntax, but they differ in their approach to values and their compile-time mechanisms. If you assume that code works the same as Python, you will encounter unexpected ...