谈及中国戏曲,人们都会注意到一个几乎共同和有趣的现象,即:中国古典戏曲的故事剧情,大多萌生于某些本事母题。用今人周维培先生的话讲,可见到“剧作之间是裔派承传的血缘关系”[1],即严重的本事化倾向。本事,多指原事、旧事。本事化,指戏曲剧作当中的人物、故事,大多曾见于史书、典籍,或者其他文艺形式,大体的故事脉络都有据可依,有案可查。明代戏曲理论家王骥德有谓:元人杂剧,其体变幻者固多, When it comes to Chinese opera, people will notice a phenomenon that is almost common and interesting. That is, most of the stories and dramas in Chinese classical operas originate from some motives. In the words of present-day person Mr. Zhou Weipei, we can see that “the blood relationship between descendants and descendants of Chinese drama” [1] shows that there is a serious tendency of actualization. Ability, more refers to the original matter, old things. In this case, the characters and stories in opera dramas are mostly found in history books, classics, or other literary and art forms. The general context of the story is well documented and documented. Wang Ji-de, a theorist of the Ming Dynasty drama, said: Yuan drama,