在高中阶段,学生学习了一些重要不等式,如均值不等式和柯西不等式,这些重要不等式在解题时发挥着重要的作用.在很多数学竞赛试题中,经常可以看到另一个特殊的不等式——权方和不等式的身影,高维形式的权方和不等式在证明某些不等式时有着不可替代的作用.本文介绍二维形式的权方和不等式及其在处理某些最值问题时的应用,供大家参考. In high school, students learn some important inequalities, such as mean inequality and Cauchy inequality, which play an important role in problem solving.In many math test questions, you can often see another special inequality - Right and inequality, the weights and inequalities of high-dimensional form play an irreplaceable role in proving some inequalities.This paper introduces the two-dimensional forms of weights and inequalities and their application in dealing with some of the most value problems, For reference.