python报错:Invalid parameter alpha for estimator Pipeline
报错信息InvalidparameteralphaforestimatorPipeline解决办法:在pipe里定义的名称后要加两个下杠。原始:pipe=Pipeline([('scaler',StandardScaler()),('mlp',MLPClassifier(max_iter=1600,random_state=38))])params={'mlp_hidden_layer_sizes