文 [1]在不等式的证明中 ,灵活地运用数形结合的思想方法 ,化难为易 ,化隐为显 ,证明代数不等式 ,是那样巧妙、简明 ,使读者饱览了数学领域中数与形的和谐美、统一美 .读后受益非浅 .笔者对该文例题作进一步的思考 ,发现换一个角度 ,用代数方法来证明 ,也能体现解题过程的简捷 In [1], in the proof of inequality, we can flexibly use the idea of ​​combination of numbers and shapes, make it difficult to make things easier, and make it obvious that we prove the algebraic inequality. It is as clever and concise as to enable the reader to enjoy the mathematics and shape in mathematics. The harmonious beauty and unity of the United States are very important to the students after reading. The author thinks further about this example and finds that changing the angle, using algebraic methods to prove, can also reflect the simplicity of the problem solving process.