ACIS基础培训课程2(8)

ACIS培训

列表操作(List Operation) (length)得到列表中元素的个数 acis>(length (list “abc” 123 “xyz” 567)) 4 (list-ref)返回指定序号的元素(从“0”开始) acis>(define mylist (list “abc” 123 “xyz” 567)) mylist acis>(list-ref mylist 0) “abc” acis>(list-ref mylist 2) “xyz”