What's the equivalent of Clojure's “do” in Common Lisp?

Question

也就是说，按顺序评估子表单并返回最后评估值的表单，例如

(do (println "Hello World") 3) => 3

Answer 1

It's called progn .

Special Operator PROGN

Syntax:

progn form * ⇒ result *

Description:

progn evaluates forms , in the order in which they are given.

The values of each form but the last are discarded.