所谓格点(又称整点),是指平面直角坐标系中横、纵坐标都是整数的点.这类问题因其与整数有关,因而在数学竞赛中多有出现.本文探讨这类问题的解法.1从形的角度形是整点问题的重要特征,因此在数字不太大的情况下,可以考虑使用数形结合.1.1运用对称思想有些整点问题,给定的条件往往 The so-called grid point (also known as the integer point) refers to the point where the horizontal and vertical coordinates in the rectangular coordinate system are all integers. This type of problem has many occurrences in mathematic competitions due to its relation to integers. This article discusses such issues. The method of solution.1 The form of the angle from the perspective of the shape of the point is an important feature of the problem, so in the case of not too large numbers, you can consider using a combination of number and shape. 1.1 use of symmetry thinking some of the whole point of the problem, given the conditions