简要概述了最具代表性的分形结构--扩散限制凝聚(Diffusion-Limited-Aggregation,DLA)模型的生长规则、主要性质,给出了模型模拟分形生长的算法,在MATLAB6.5平台上进行了程序设计,在Windows98/2000/XP下实现了DLA模型模拟生长的动态过程.-Briefly summarizes the most representative of the fractal structure- diffusion-limited condensed (Diffusion- Limited- Aggregation, DLA) model of growth rules, the main properties, gives the model simulation processes-fractal growth algorithm, by MATLAB6.5 platform for software design, in Windows 98/2000/XP realize DLA model to simulate the growth of dynamic process.