Terminology: What features must a language have for it to be considered a dynamically typed language?

问题

What features must a language have for it to be considered a dynamically typed language

回答1:

Values have types, but variables do not.

来源：https://stackoverflow.com/questions/3462405/terminology-what-features-must-a-language-have-for-it-to-be-considered-a-dynami