许多同学在解题过程中,习惯于按常规进行推理、计算,而不能灵活运用其它合理而灵活的解题方法.为此,笔者在此介绍几种非常规解题方法,供同学们参考.一、赋值法若已知一个变量在某取值范围内使问题成立,则在这个范围内的每一个值都使命题成立.所以,解答此类问题时,常赋予变量的 In the process of solving problems, many students are accustomed to making inferences and calculations according to routines. They cannot flexibly use other reasonable and flexible methods for solving problems. For this reason, the author introduces several unconventional problem-solving methods for students’ reference. First, the assignment method If a variable is known to hold the problem within a range of values, every value within this range has a mission statement. Therefore, when answering such a question, it is often assigned a variable.