Voting集成-硬投票

def solve():
    import pandas as pd
    from sklearn.ensemble import VotingClassifier
    from sklearn.neighbors import KNeighborsClassifier
    from sklearn.tree import DecisionTreeClassifier
    from sklearn.linear_model import LogisticRegression
    from sklearn.model_selection import train_test_split
    from sklearn.metrics import accuracy_score
    df = pd.read_csv(____)
    X = df.drop(____)
    y = df['____']
    X_train, X_test, y_train, y_test = train_test_split(____)
    estimators = [('____', KNeighborsClassifier()), ('____', DecisionTreeClassifier()), ('____', LogisticRegression(____))]
    voting = VotingClassifier(____)
    voting.fit(____)
    print('____', round(accuracy_score(y_test, voting.predict(____)), ____))