问题是离散数学中的闭包和计算机语言中的闭包有联系吗？,简单的描述是,正文为没有半点关系，SICP里第二章注释6： The use of the word closure'' here comes from abstract algebra， where a set of elements is said to be closed under an operation if applying the operation to elements in the set produces an element that is again an element of the set. The Lisp community also unfortunately uses the word closure'' to describe a totally unrelated concept A closure is an imple