假设集合Ａ和Ｂ的元素都是整数，并利用两个线性表la和lb分别存放集合Ａ和Ｂ的成员。现依次取出lb中的每个元素，按其值查找线性表la，若la中不存在该元素，则将它插入到la中去，最后线性表la就存放了集合ＡＵＢ的元素。-Assume a collection of elements of A and B are integers, and two linear tables la and lb, respectively, to store the sets A and B members. Now remove lb in each element in turn, according to their value to find the linear form la, if the element does not exist in the la, insert it into the la in the last linear form la placed with a collection of elements of the AUB.