问accuracy_score和clf.score在滑雪方面有什么区别？

EN

from sklearn.svm import SVC
from sklearn.datasets import make_blobs
from sklearn.metrics import accuracy_score
from sklearn.model_selection import train_test_split
    
X, y = make_blobs(n_samples=500, n_features=2, centers=2, random_state=34)
X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.25, random_state=42)
clf = SVC()
clf.fit(X_train, y_train)
y_pred = clf.predict(X_test)
print(clf.score(X_test, y_test) == accuracy_score(y_test, y_pred))

True

def score(self, X, y, sample_weight=None):
    """
    Return the mean accuracy on the given test data and labels.
    In multi-label classification, this is the subset accuracy
    which is a harsh metric since you require for each sample that
    each label set be correctly predicted.
    Parameters
    ----------
    X : array-like of shape (n_samples, n_features)
        Test samples.
    y : array-like of shape (n_samples,) or (n_samples, n_outputs)
        True labels for `X`.
    sample_weight : array-like of shape (n_samples,), default=None
        Sample weights.
    Returns
    -------
    score : float
        Mean accuracy of ``self.predict(X)`` wrt. `y`.
    """
    from .metrics import accuracy_score

    return accuracy_score(y, self.predict(X), sample_weight=sample_weight)