import numpy as npnp.mean()和np.average()都是计算均值。不加权时，np.mean()和np.average()都一样。np.average()可以计算加权平均。加权平均：a = np.array([1, 2, 3, 4, 5])aw = np.array([0.1, 0.2, 0.3, 0.4, 0.5])print('平均：', np.mean(a))pri