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说明：  魔王语言解释 具体要求参见《数据结构题集》P97,实习2.2中的描述。 用下述两条具体规则和上述规则形式（2）实现。设大写字母表示魔王语言的词汇；小写字母表示人的语言词汇；希腊字母表示可以用大写字母或小写字母代换的变量。魔王语言可含人的词汇。 （1）B->tAdA （2）A->sae (Beelzebub language to explain the specific requirements see the " Data Structure set title" P97, internship 2.2 description. 2 with the following specific rules and these rules form (2) implementation. Located in capital letters devil language vocabulary lowercase letters were the language vocabulary the Greek letters can be uppercase letters or lowercase letters substitution variables. Beelzebub language may contain human vocabulary. (1) B-> tAdA (2) A-> sae)