集成学习投票分类

def solve():
    from sklearn.datasets import load_iris
    from sklearn.linear_model import LogisticRegression
    from sklearn.tree import DecisionTreeClassifier
    from sklearn.ensemble import VotingClassifier
    from sklearn.preprocessing import StandardScaler
    from sklearn.metrics import accuracy_score
    iris = load_iris()
    X = iris.data
    y = iris.target
    scaler = StandardScaler()
    X_s = scaler.fit_transform(____)
    clf1 = LogisticRegression(____)
    clf2 = DecisionTreeClassifier(____)
    voting = VotingClassifier([(____), (____)], voting='____')
    voting.fit(____)
    acc = accuracy_score(y, voting.predict(____))
    print(____)