对一个具体的部件结构，从设计思路到力学计算，到最后的程序设计和说明，详细的分析了拓扑优化的设计思路，为学习者提供易于理解，易于学习的资料(For a specific component structure, from design idea to mechanical calculation, to the final program design and explanation, the design idea of topology optimization is analyzed in detail, which provides learners with easy to understand and easy to learn data.)