在SEIR传播模型上，设置相应参数，通过调节参数，可观察治愈患者，死亡人数等的变化趋势(In Seir propagation model, set the corresponding parameters, by adjusting the parameters, we can observe the change trend of the cured patients, the number of deaths, etc)

可以求出疫情的发展状态，文件中的病毒传播率以及康复率是以武汉的数据为基础的(about novel coronavirus pneumonia)

R语言代码，传染病传播的SIR模型，可直接应用仿真模拟 (SIR model the spread of infectious diseases, it is full, the simulation can be applied directly)(R language code, simulating SIR model)