X_test = sc.fit_transform(X_test) ,这里是测试集的均值方差,可能会引入信息泄漏,应该改成 X_test = sc.transform(X_test)
X_test = sc.fit_transform(X_test) ,这里是测试集的均值方差,可能会引入信息泄漏,应该改成 X_test = sc.transform(X_test)