数列的项与通项在数列中扮演着重要的角色.项是组成数列的元素,项是通项的具体化,项又是发现通项的第一手材料.通项反映了数列中项的共性特征,这种共性特征又常常是解数列题的根本.项是数列的个性特征,常常是解数列题的思维起点.通项与项的这种关系,在解数列题中有着重要的功能. The items and general terms of the series play an important role in the series. The items are the elements of the series. The items are the concretization of the general items. The items are the first-hand materials for the discovery of the general items. The general items reflect the items in the series. The common characteristic, this common characteristic is often the root of solving the problem of numbers. The item is the personality characteristic of the series, and is often the starting point of thinking for solving the number problem. The relationship between the general term and the term has an important function in solving the series of questions. .