lisp-format初步格式输出和数字判定
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2022-04-29 23:39:11
...
0] (format t "~a~%~a" "asafadf" "11111")
asafadf
11111
NIL
0[5] (parse-integer "aaa2":junk-allowed t)
NIL
0
0[5] (parse-integer "5552":junk-allowed t)
5552
4
0[5]