Lisp - 字符串concat

Question

我正在尝试使用linux上的clisp在lisp中连接字符串 我运行以下代码：

(defun bingo ()
  (strcat "Correct! You guessed " (itoa *count*) " times."))

但是，得到以下错误：

EVAL: undefined function STRCAT
EVAL: undefined function ITOA

有什么建议吗？

Answer 1

CL-USER 1 > (format nil "This is too easy. ~a day I'll learn Lisp." 1)
"This is too easy. 1 day I'll learn Lisp."