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

链接错误不能声明抽象方法的抽象基类？

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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.

不同的是，如果你可以使用抽象方法在这种情况下，你会看到一个“类必须实现的方法”的错误时，你试图运行你的代码(任何代码)，以及你的IDE会突出显示错误。

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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.

如果这种方法从不叫，你不会得到错误，这意味着它是不是真的“乐于助人”的宣言，以同样的方式，将一个抽象的。

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Abstract: According to the excessive error factors and difficult analysis of the binocular vision measurement systems, an error analysis method based on grey incidence technology was proposed.

摘要：针对双目视觉测量系统存在误差因素繁多、分析困难等问题，提出了一种基于灰色关联技术的误差分析方法。

youdao

Abstract: According to the excessive error factors and difficult analysis of the binocular vision measurement systems, an error analysis method based on grey incidence technology was proposed.

摘要：针对双目视觉测量系统存在误差因素繁多、分析困难等问题，提出了一种基于灰色关联技术的误差分析方法。

youdao