macro2

    技术2022-05-19  52

    (defmacro  demo  (expr)(print  expr))(defmacro  mymachine  (exprs)`(if  ,(eq  exprs  nil)       nil     (progn          (demo ,(car  exprs))          (mymachine  ,(cdr  exprs) )      )))

    (mymachine   ((defmacro  demoinside  (expr)(print  expr))(defmacro  mymachineinside  (exprs)`(if  ,(eq  exprs  nil)       nil     (progn          (demoinside ,(car  exprs))          (mymachineinside  ,(cdr  exprs) )      )))

    (mymachineinside  (

    (funcall   (lambda (x )                (funcall    (lambda (y )                               (progn (print x)(print y)  (print (+   x   y) ) )                           )                3 )             )            4)

    (funcall        (funcall   (lambda (x )                      (lambda (y )                               (progn (print x)(print y)  (print (+   x   y) ))                      )                   )                   3 )             4)             )))) 


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