众所周知，蜀在三国当中兵力最为弱小，军队数量远比不上魏、吴两国。魏在曹操晚年时“天下不耕者盖二十余万”，兵数不过如此，直至灭蜀前（公元２５７年）才达到５０万人。孙吴在降晋时全国兵力也只有２３万。蜀地狭民寡，国力远逊于魏、吴，其拥有的兵力也与其国情相符... As we all know, Shu is the weakest force among the three countries, and the number of troops is far less than that of Wei and Wu. During the late years of Cao Cao’s career, “the world did not cultivate more than 200,000 people,” but the number of soldiers was not over 500,000 until it was destroyed in Shu (257 AD). When Sun Wu was in Jin, there were only 230,000 troops nationwide. Shu territory narrow-minded, national power is far less than Wei, Wu, its own strength also consistent with its national conditions ...