如何使用Scikit Learn调整随机森林中的参数？

class sklearn.ensemble.RandomForestClassifier(n_estimators=10,
                                              criterion='gini', 
                                              max_depth=None,
                                              min_samples_split=2,
                                              min_samples_leaf=1, 
                                              min_weight_fraction_leaf=0.0, 
                                              max_features='auto', 
                                              max_leaf_nodes=None, 
                                              bootstrap=True, 
                                              oob_score=False,
                                              n_jobs=1, 
                                              random_state=None,
                                              verbose=0, 
                                              warm_start=False, 
                                              class_weight=None)
class sklearn.ensemble.RandomForestClassifier(n