神经网络

代码说明：

说明：  模拟人思维的第二种方式。这是一个非线性动力学系统，其特色在于信息的分布式存储和并行协同处理。虽然单个神经元的结构极其简单，功能有限，但大量神经元构成的网络系统所能实现的行为却是极其丰富多彩的。(he second way to simulate human thinking. This is a non-linear dynamic system, which is characterized by distributed storage of information and parallel cooperative processing. Although the structure of a single neuron is extremely simple and its function is limited, the behavior of the network system composed of a large number of neurons is extremely rich and colorful.)