vl-sort执行顺序，请各位老师说说,谢谢

重慶崽兒

(vl-sort '((1 3) (2 2) (3 1)) (function (lambda (e1 e2) (< (cadr e1) (cadr e2)))))
如上，这句话的执行顺序是怎么样的啊？
第一次比较(1 3)和(2 2)第二次是哪两个比较啊
额，还有就是其中funtion的作用，好像不用function也是可以的吧

dbqtju

可以在visual lisp editor里跟踪一下。
帮助文件内解释：Tells the Visual LISP compiler to link and optimize an argument as if it were a built-in function

(function symbol | lambda-expr)
The function function is identical to the quote function, except it tells the Visual LISP compiler to link and optimize the argument as if it were a built-in function or defun.

Compiled lambda expressions that are quoted by function will contain debugging information when loaded into the Visual LISP IDE

重慶崽兒

dbqtju 发表于 2015-5-31 08:46
可以在visual lisp editor里跟踪一下。
帮助文件内解释：Tells the Visual LISP compiler to link and opt ...

3Q  谢谢