数学题目虽然类型繁多，但从本质上看，无论解哪类问题，其核心都是寻找已知与结论之间的逻辑关系．一般说来，问题的条件是已知的，结果是未知的（虽然在证明题中结论也给出来了，但它的正确性却是未知的），因而，条件往往是解题的出发点和重要依据．但经常的情况是：题目的 Although there are many types of mathematical problems, in essence, no matter what kind of problems are solved, the core is to find the logical relationship between known and conclusions. In general, the condition of the problem is known, and the result is unknown (although the conclusion is also given in the proving item, its correctness is unknown). Therefore, the condition is often the starting point and important point of problem solving. in accordance with. But often the situation is: