本文以无约束优化问题为研究对象，研究了一种较新的元启发式算法，即类电磁机制算法（Electromagnetism-like Mechanism，EM），利用改进算法求解实际工程中的优化问题。-In this paper, a new heuristic algorithm, Electromagnetism-like Mechanism (EM), is studied by using the improved algorithm to solve the optimization problem in practical engineering.