参数问题因受各种因素的制约，多数题目很难一次性处理，分类讨论是其常规解法．但若在解题前注意思维策略，适当作一些“技术处理”，则可避免或简化讨论，收到事半功倍之效．下面介绍一些常用的思维策略，供教学中参考．１．变形转化一些题目隐晦生疏似难入手，若把某些... The parameter problem is constrained by various factors, most of the problems are difficult to deal with at once, and the classification discussion is its conventional solution. However, if you pay attention to your thinking strategy before you solve the problem, and make appropriate “technical treatment”, you can avoid or simplify the discussion and receive more effective results. Here are some commonly used thinking strategies for reference in teaching. 1. Deformation and transformation of some topics concealed like difficult to get started, if you put some ...