巴与蜀的行政隶属 ,从秦统一到 1949年 ,经历了 2 0次大的分分合合。其中以南宋绍兴五年 (1135年 )为界 ,此前主要是“分” ,此后几乎都是“合”。从秦至北宋 ,统治者主要采用让巴与蜀分开的办法来防范其割据。和平时期 ,这确见成效 ,但每遇战乱 ,巴蜀地区仍频频割据。明清时采用“三司分理”的办法 ,才基本避免了巴蜀地方割据政权的产生。多次“合”的形成 ,除了地理、经济、文化方面的原因外 ,主要原因在于 ,在战争年代 ,往往需要巴蜀的合力才能抗击侵略 ,每当天下大乱时 ,也只有二者的合力 ,才能割据以自保 Pakistan and Shu administrative affiliation, from the Qin unification to 1949, experienced 20 times the large division and cooperation. Among them, the Southern Song Dynasty Shaoxing five years (1135) for the sector, after the main is “points”, since almost all “together.” From the Qin Dynasty to the Northern Song Dynasty, the rulers mainly used the method of separating Ba and Shu from their separatism. In peacetime, this really worked, but in times of war there are still frequent separatist positions in the Bashu area. In the Ming and Qing Dynasties, the “Three Divisions and Divisions” approach was adopted to basically avoid the occurrence of separatist regimes in Bashu. The main reason for the formation of multiple “allies” apart from geographical, economic and cultural reasons lies in the fact that during the war years it was often necessary for the alliance of Bashu to fight against the aggression. When the world was in chaos, only the two could join forces Divide to protect themselves