我们在解题时常常会碰到题目的条件与结论间在其形式、结构、图形或数字间存在着差异 ,若将条件与结论间的差异称之为目标差 ,那么我们解题的关键就在于设计一个使目标差不断减小的方案 .不断减少目标差而完成解题的思考方法 .我们称之为差异分析法 .运用这种方法来实现问题的 When we solve a problem, we often encounter the difference between the conditions, the structure, the graph, or the number between the conditions and the conclusions of the problem. If the difference between the condition and the conclusion is called the target difference, then the key to solving the problem is It’s about designing a solution that keeps the target difference decreasing. The thinking method to solve the problem by continuously reducing the target difference. We call it the difference analysis method. Use this method to realize the problem.