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有限元方法作为一种便利和高效的数值分析方法被广泛地应用于工程分析领域。为了准确快速地将离散域划分成规则的有限元网格单元，本文提出了一种四边形网格生成方法Ｌｏｏｐｉｎｇ算法，并且给出了实现该算法的数据结构，最后运用面向对象的技术实现了该系统的集成。
Finite element method is widely used in engineering analysis as a convenient and efficient numerical analysis method. In order to divide the discrete domain into regular finite element mesh units accurately and quickly, this paper proposes a quadrangle mesh generation method, Looping algorithm, and gives the data structure to achieve the algorithm. Finally, using object-oriented technology to achieve the System integration.