功是高中物理中的一个重要物理量,功的计算是教材中的一个重点.功的计算方法可归结为三种即:功的公式法,功率法,动能定理法.这三种计算方法基本上包含了高中物理中所有功的计算,但这三种计算方法的适用条件是不同的.本文将对功的三种计算方法做深入的分析,希望对功的复习有所启发和帮助. Work is an important physical quantity in high school physics. The calculation of work is a key point in the textbook. The calculation method of work can be summed up in three types: the formula method of power, the power method, and the kinetic energy theorem. These three methods are basically Including the calculation of all the work in high school physics, but the application conditions of these three kinds of calculation methods are different. This article will do an in-depth analysis of the three methods of work calculation, and hope to inspire and help the review of the work.