张竹坡的小说评点上承金圣叹,下启脂砚斋。“草蛇灰线”是其评点中的重要理论之一,指的是小说行文中若隐若现的叙事线索,在情节发展上安根下线,结构上起到贯穿叙事单元,细节叙写上伏笔照应及意蕴上的隐喻象征作用。本文主要围绕其在评点中的实际运用进行简要分析。 Zhang Zhupo’s novel reviews on the Jin Shengtan, under the fat Zhi Yan vegetarian. “Grass snake gray line ” is one of the important theories in his critique, referring to the looming narrative clues in the writing of the novel, in the plot development rooted in the structure, play through the narrative unit, the details of the narrative Fu Xu Zhao Ying and implication metaphorical symbolic role. This article mainly analyzes its practical application in the commentaries.