python
导入必要的库
import matplotlib.pyplot as plt
from sklearn.datasets import load_iris
from sklearn.model_selection import train_test_split
from sklearn.preprocessing import StandardScaler
from sklearn.decomposition import PCA
from sklearn.svm import SVC
def ai_lesson():
print(欢迎来到人工智能入门课程!)
数据加载
iris = load_iris()
X, y = iris.data, iris.target