数列是高中数学的重要内容之一,由于它具有函数的特征,使得它与中学数学的其他相关知识(如函数、方程、不等式、解析几何、二项式定理等)有较紧密的联系,并且数列又有其自身的鲜明的特征,因此它是历年高考的重点、热点和难点.数列的复习首先要回归课本,构建完整、详细的知识网? The series is one of the important contents of high school mathematics. Because it has the characteristics of the function, it has a close relationship with other related knowledge of middle school mathematics (such as functions, equations, inequalities, analytical geometry, binomial theorem, etc.), and The series has its own distinctive features, so it is the focus, hot spot and difficulty of the college entrance examination over the years. The review of the series must first return to the textbook, build a complete and detailed knowledge network?