著名数学家华罗庚教授曾说过:“数形结合万般好,数形分离万事休”.数形结合确实是中学数学中最重要的思想方法之一,要用数形结合的方法解题,首先须作出函数的图像或方程的曲线,如何作出函数的图像是每个同学必须解决的问题.本文介绍作函数图像的几种常用方法,供大家参考. The famous mathematician Professor Hua Luogeng once said: “The combination of numbers and shapes is as good as possible, and the separation of numbers and shapes is a matter of all things.” The combination of numbers and shapes is indeed one of the most important ways of thinking in middle school mathematics. It is necessary to use mathematical methods to solve problems. To make a function of the image or equation of the curve, how to make the function of the image is the problem that each student must solve. This article describes several common methods for function images, for your reference.