求平面图形的面积问题一直是中考数学的一个热点,我们一般将不规则图形的面积转化为若干个基本规则图形的组合,综合分析整体与部分的和、差关系,常用的基本方法有割补法、等积转化法、整体法等等,本文以2016年重庆市中考数学第18题为例,运用上述方法来探究解法的多样性. The area of ​​drawing graphics area has always been a hot spot in the senior high school entrance examination mathematics, we generally convert the area of ​​irregular graphics into a combination of a number of basic rules and graphics, a comprehensive analysis of the whole and part of the difference, the basic methods commonly used are cut Law, Equal Conversion Method, Holistic Law, etc. In this paper, we take the eighteenth test of Chongqing Entrance Examination in 2016 as an example to explore the diversity of solution method by using the above method.