脂砚斋一再指出,曹雪芹的笔法是“草蛇灰线,在千里之外”。刘心武先生在《百家讲坛》如此说明这个笔法:“如常山之蛇,见头不见尾,见尾不见头,非常地蜿蜒曲折。”这一说法在《刘心武揭秘〈红楼梦〉》第二部第54页仍然保留。然而,刘先生对“常山之蛇”的理解是有偏差的。“常山之蛇”出自《孙子·九 Zhi Yan Zhai repeatedly pointed out that Cao Xueqin’s writing is “grass snake gray line, thousands of miles away ”. Mr. Liu Xinwu in the “Lecture Room,” so illustrate this style: “Such as the mountain of the snake, see the beginning of the tail, see the tail is not seen, very twists and turns.” This argument in the “Liu Xinwu Secret” Dream of Red Mansions “ Page 54 of Part II remains. However, Mr. Liu’s understanding of ”Changshan Snake “ is biased. ”Mountain snake “ From ”grandson nine