本文介绍透射电子衍射花样的计算机辅助标定和模拟。编写了供物相电子衍射分析用的倒易平面基本特征平行四边形数据计算和绕一系列倾斜轴系统倾斜标准电子衍射花样模拟的计算机程序,提出了处理晶体结构中系统消光的新方法。以Fe_3C和Cr_7C_3碳化物的电子衍射花样为例进行计算和模拟,得到满意的结果。 This article presents computer-aided calibration and simulation of transmission electron diffraction patterns. A computer program was developed to calculate parallelogram data of reciprocal planar basic features for phase-electron diffraction analysis and a standard electron diffraction pattern simulation about a series of inclined axis systems. A new method of processing system extinction in crystal structure was proposed. Taking the electron diffraction patterns of Fe_3C and Cr_7C_3 carbides as an example, the calculation and simulation were carried out to obtain satisfactory results.