时间序列预测法是一种定量分析方法，它是在时间序列变量分析的基础上，
运用一定的数学方法建立预测模型，使时间趋势向外延伸，从而预测未来市场的
发展变化趋势，确定变量预测值。(Time series forecasting method is a quantitative analysis method. It is based on the analysis of time series variables,A mathematical model is used to establish a prediction model to extend the time trend, so as to predict the future development trend of the market, and to determine the predictive value of the variables.)