在线性表的顺序存储结构上的第i个位置上插入一个元素时，必须先将线性表的第i个元素之后的所有元素依次后移一个位置，以便腾空一个位置，再把新元素插入到该位置。若要删除第i个元素时，也必须把第i个元素之后的所有元素前移一个位置-Online storage structure of the order of the table on the first i positions to insert an element, you must first linear element in the table after the first i-turn after the move all the elements of a position, in order to vacate a position, then insert the new element to that location. To delete the first i elements, we must also put the first element after i forward all the elements of a position