如果您已经花费了大量的时间使用面向对象的语言，则您可能已经遇到了表达式问题的例子。

If you've spent a significant amount of time working with object-oriented languages, you've probably run into examples of the Expression Problem.

youdao

如果您已经花费了大量的时间使用面向对象的语言，则您可能已经遇到了表达式问题的例子。

If you've spent a significant amount of time working with object-oriented languages, you've probably run into examples of the Expression Problem.

youdao