项目所需的环境: python==3.9.0 scikit-learn==1.0.2 numpy==1.22.3 matplotlib==3.5.1 1.数据集 下面我以boston数据集为例进行介绍,boston房价数据集: from sklearn.datasets import load_boston from sklearn.model_selection import train_test_split # dataset housing = load_boston() X