Gompertz（龚伯次）曲线模型被广泛应用在预测中，该代码实现了G曲线的预测功能。-Gompertz curve is widely used in prediction, this code will help achieve the Gompertz curve prediction function.

泊松曲线模型被广泛应用在预测中，该代码实现了泊松曲线的预测功能。-Poisson curve model is widely used in prediction, this code will help achieve the Poisson curve prediction function.