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一款经典常用的树形导航，我们在老版本的后台管理系统下常见的效果(A classic tree navigation, which we often use in the old version of the background management system.)

准确的世界范围的省市区，三级联动下拉选择(Accurate worldwide provinces and municipalities)

1.首先选定图的类别（有向图、无向图），再选定图的存储结构，根据输入的顶点或者边建立图；并把相应的邻接表或者邻接矩阵输出； 2.根据已有的邻接矩阵或邻接表用递归方法编写深度优先搜索遍历算法，并输出遍历结果； -1. First of all selected map type (directed graph, undirected graph), re-selected map storage structure, under the Importation of the establishment of the vertex or edge map and the corresponding adjacency list or adjacency matrix output 2. According to Some adjacency matrix or adjacency list prepared by the recursive depth-first search method traversal algorithm, and output traversal results

几个无线网络模拟源文件。里面简单实现了无线节点的路由选择过程。-A number of wireless network simulation source file. Inside a simple realization of the wireless routing node selection process.

通讯录格式转换的源码，可以切入到相关项目中进行使用。-Format conversion of the source address book, you can cut to the use of related projects.

说明：  网侧仅输出有功功率，网侧电压与电流同相位(SVG The grid side only outputs active power, and the grid side voltage and current are in phase.)

利用光的衍射原理， 得到了衍射光栅的光强解析表达式，继而利用MATLAB软件强大的绘图功能，对光强分布的一维、二维图像进行模拟和仿真研究。(Using the diffraction principle of light, the analytical expression of the intensity of the diffraction grating is obtained, and then the one-dimensional and two-dimensional images of the light intensity distribution are simulated by using the powerful drawing function of MATLAB software.)

两点边值问题的打靶法,也是自己亲手做的一个作业(Boundary Value Problems shooting method, also by myself)

关于SVM参数寻优算法的GUI界面实现代码(GUI Interface Implementation Code for the SVM Parameter Optimization Algorithm)

说明：  用于所下载的calipso数据中气溶胶类型的频率统计(Statistics of the annual aerosol depolarization ratio frequency used in the downloaded calipso data)