"Walking into the active hall of Gansu compound is like entering another time and space. Between the gray tiles and white walls, a breath of history came to my face, stroking these carved doors and windows in the Ming and Qing Dynasties, and I seemed to feel the breath of history. " "The largest palace in China is the Forbidden City, with 9,999 and a half rooms; The largest official residence is Qufu Confucius House, with 999 and a half rooms; The largest civilian residence is this Ganjia compound because it has ninety-nine and a half rooms. " Searching for various Ganjia Courtyards on the Internet, I first came into contact with this name by a classmate of Nannong, saying that there are nine kinds of snacks 10 yuan near Confucius Temple, and I was very interested in excavating the characteristics of Nanjing, so I decided to have the opportunity to go there and taste them myself. On the fifteenth day of the first month, I went to the Confucius Temple to enjoy the lanterns and asked many people. Unfortunately, I didn't know them, and I was a little lost, so I deepened my yearning for them.