对解决某些数学问题往往能事半功倍,同时对求异思维的培养、训练学生一题多解的能力都不无裨益。文章从不同的方面举例说明其应用的广泛性并讨论了实现数形结合的主要途径。 To solve some mathematical problems can often do more with less, at the same time to cultivate the idea of ​​difference thinking, training students a problem-solving ability is not without merit. The article illustrates its wide range of applications from different aspects and discusses the main ways to achieve the combination of several forms.