Philip Wadler of Bell Labs coined the term Expression Problem in an unpublished paper that he circulated by email in 1998 (see Resources).
Bell实验室的Philip Wadler在1998年通过电子邮件传阅的未发布的文章中创造了表达式问题这个词(请参考参考资料)。
Coined by Philip Wadler, the expression problem defines a program's data as a set of cases (types) and a set of operations over those cases.
表达式问题这个词是由Philip Wadler定义的,它将一个程序的数据定义为一组用例(类型)和对于这些用例的一组操作。
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