后进先出栈，下堆栈
1. Refers to push-down stack procedures and is the acronym for last in/first out, a buffer procedure.
左面GOOGLE广告为GOOGLE自动生成广告，请谨慎对待。
noun
1. a list in which the next item to be removed is the item most recently stored (LIFO)
Synonym: push-down list stack