Why did Li Shangyin call himself Fan Nansheng? Ask for a detailed answer! O(∩_∩)O~

"Fannan" refers to Fan Chuan in the south of Chang 'an, with beautiful scenery. "From Weiqu to the south, the long canal is divided into notes, the soil is rich, the vegetable garden is full of rice beds, and the chickens and dogs in the fields are like in the pictures of the water village in the south of the Yangtze River." (Fu Zengxiang's "Qin You Ri Lu") Bureaucrats and scholars in the Tang Dynasty liked to buy villas in this area for recreation and feasting. During his life in Chang 'an, Li Shangyin may often come to Fan Chuan, so he took this as his own name.