评估指标-F1分数

def solve():
    from sklearn.metrics import f1_score
    y_true = [0, 1, 0, 1, 1]
    y_pred = [0, 1, 0, 0, 1]
    f1 = f1_score(y_true, y_pred)
    print('F1分数:', round(f1, 4))