大小单双概率

简介：Chen Yongfu was the commander-in-chief of Henan Province. His son Chen De became famous when he blinded Li Zicheng's eye with an arrow in the first battle of Kaifeng. Chen Yongfu did not have any clever tactics in his military use. He was victorious because he felt good. In the first battle of Kaifeng, , he was the first general to sense that Kaifeng was in danger and quickly returned to aid Kaifeng.