相传在伏羲时代,从黄河里跳出了一匹龙马,龙马背上旋毛的图形引起了伏羲的兴趣,反复观测,以现其中隐含着很多天机,于是便绘制成“河图”.图中绘有黑白点55个,黑点表示阴数为偶数,白点表示阳数为奇数用直线连接成10个数字,除中数5外分三层,中数加第二层数等于外层数,中间为土,土 According to legend, during the Fuxi era, a dragon horse was jumped out of the Yellow River. The pattern of the spiny hair on the back of the dragon horse caused the interest of Fuxi. Repeated observations revealed that there were many secrets in it and they were drawn as “river maps.” There are 55 black and white dots. Black dots indicate that the number of negative dots is even. White dots indicate that the number of positive dots is odd. Connect 10 lines with straight lines. Divide the medium number 5 to divide the three layers. The medium number plus the second layer number is equal to the outer layer number. The middle is soil, soil