Jin Shengtan's "Reading the Handwritten Book of the Fifth Talented Person" says: "After the second fight in Zhujiazhuang, Jie Zhen and Jiebao suddenly broke out as tigers escaping from prison; Just as we were hitting Daming Mansion, we suddenly found out that the ghost who broke the water and the fish in the oil pan were trying to make money and lose everything. Just because the text is too long, I am afraid of falling, so I temporarily flash out from the middle of the waist. " "Water Margin" hit Zhujiazhuang is an important plot, involving three chapters, such as one dozen, two dozen and three dozen, with continuous narrative, gentle rhythm and lack of change. Therefore, in order not to make the narrative of this plot too long "cumbersome", the story of "Good News and Double Prison Break" was added to describe the family background and experience of the Xie brothers. After Sun Li and others robbed the prison, they led their brother-in-law and Sun Li and others to Liangshan, and then continued the main plot, and then wrote "Three Big Zhujiazhuang". This is what Jin Shengtan said, "flash out from the middle of the waist and temporarily separate it." It enriches the plot of the novel, makes it changeable and increases the readability of the story. As Jin Shengtan said in his forty-ninth general comment: "After thousands of troops and horses, they suddenly disappeared. Don't make a turbulent article that dazzles readers. " Another example is "Tota Wang Meng Li Appears" in the sixty-fifth chapter. When Song Jiang attacked Daming House and failed to temporarily withdraw, he joined a section where Zhang Shun was cut off by Wang Zhang, a ghost in the river, and Sun San, an oil loach, killed people for money. Zhang Shun invited An Daoquan, a famous doctor, to treat Song Jiang's back pain. Then the next time "Wu Zhi named Fu", it returned to the main plot. The author used the same technique.