the forecasts method including the forecast method of simple moving average, the forecast method of weighting moving average, the forecast method of single exponential smoothing, the forecast method of double exponential smoothing, the forecast method of multiplication model and the forecast method of monadic linear regression 预测方法包括简单移动平均法、加权移动平均法、一次指数平滑法、二次指数平滑法、乘法模型预测法和一元线性回归方程预测法。