• 说明抽象方法可以定义抽象中。如果不是这样的话收到编译错误

    Note abstract methods can only be defined in abstract classes. If you attempt to do otherwise, you will be issued a compiler error.

    youdao

  • 如果这种方法从不不会得到错误意味着是不是真的乐于助人宣言同样方式一个抽象的。

    And if that method is never called, you won't get the error, which to means it's not really "obliging" the declaration in the same way an abstract def would.

    youdao

  • 链接错误不能声明抽象方法抽象

    Linker error from not declaring abstract method in abstract base class?

    youdao

  • 不同如果可以使用抽象方法这种情况下,你看到一个必须实现方法”的错误时,你试图运行代码(任何代码),以及你的IDE突出显示错误

    The difference is that if you could use abstract methods in this case you'd see a "Class must implement method" error when you try to run your code (any code), and your IDE would highlight the error.

    youdao

  • 不同如果可以使用抽象方法这种情况下,你看到一个必须实现方法”的错误时,你试图运行代码(任何代码),以及你的IDE突出显示错误

    The difference is that if you could use abstract methods in this case you'd see a "Class must implement method" error when you try to run your code (any code), and your IDE would highlight the error.

    youdao

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