数列是高中数学的一个重点内容,也是现行江苏高考中经常必考的考点,往往出现在填空题和最后的压轴题中,综合性比较强。而数列通项公式的求解往往是解决问题的关键,本文主要介绍由递推关系式去求数列的通项公式的几种常用方法。 The number of high school mathematics is a key content, but also the current Jiangsu college entrance examination often necessary test sites, often appear in the blank fill the title and the final finale, the comprehensive relatively strong. However, the solution to the general formula of series is often the key to solve the problem. This article mainly introduces several commonly used methods to solve the general formula of series by recurrence relation.