函数是高中数学的基础,学好函数知识是学好高中数学的关键。函数的对称性是函数的一个基本性质,对称关系不仅广泛存在于数学问题之中,而且利用对称性往往能更简捷地使问题得到解决。本文拟通过函数自身的对称性和不同函数之间的对称性这两个方面来探讨函数与对称有关的性质。 Function is the basis of high school mathematics, learn function knowledge is the key to learning mathematics in high school. The symmetry of a function is a basic property of a function. Symmetry is not only widely found in mathematical problems, but it is often easier to use the symmetry to solve the problem. In this paper, the symmetry of the function and the symmetry between the different functions are discussed to explore the symmetry-related properties of the function.