Computer simulation technology, based on computer technology and employing control theory and similarity principles as methods, is a comprehensive technology that uses system models to conduct analytical or semi-physical hybrid experiments on hypothetical or real systems. It is regarded as the third tool for understanding and transforming the world after scientific theory and experimental research. This technology mainly has the advantages of high practicality, flexibility, economy and safety. With the help of computer simulation technology, complex systems can be analyzed, designed and evaluated. In a nutshell, computer simulation technology is a technique that uses computers and various simulation theories to study the object system.