单双的概率问题

简介：Under the eyes of the Forbidden Army guards, a young scribe in plain clothes suddenly appeared in the small square in front of the Meridian Gate. He stretched out a large white cloth flag in his hand. On the big flag, two lines of large characters were written in blood: Emperor's Disciple, Zhang Jiayu, the counselor of the Beijing camp, wept and shed blood. The prince took away his love and replaced his filial piety with loyalty. He led Huguang and benefited the world!