蚁群算法，2-opt，解决车辆路径问题（vrp）的matlab代码，修正了原始代码忽略初始节点下一节点cost的问题，但是对某些测试数据集存在车辆数大于或小于的标准问题。-Ant colony algorithm ,2-opt, vehicle routing problem (vrp) matlab code, amended the original code ignores the initial node next node cost problems, but for some test data sets exist more or less than the number of vehicles of standard questions.