We determine the deficiency of the cacti with no more than two odd cycles,give, for a cactus with an even number of odd cycles and without cut edges, asu?

• 我们确定了奇圈数不超过2的仙人掌的亏度；给出了一个无割边且奇圈数是偶数的仙人掌可连续着色的充分条件；并且证明了无割边且奇圈数是奇数的仙人掌是不能连续着色的.；此外；我们还给出了两类亏度为1的仙人掌