报错：module ‘keras.optimizers‘ has no attribute ‘SGD‘

如果出现module ‘keras.optimizers’ has no attribute 'SGD’的错误

model_final.compile(loss="categorical_crossentropy",
                    optimizer=optimizers.SGD(lr=0.0001, momentum=0.9), 
                    metrics=["accuracy"])

把代码改成这样即可

model_final.compile(loss="categorical_crossentropy",
                    optimizer=optimizers.gradient_descent_v2.SGD(lr=0.0001, momentum=0.9),
                    metrics=["accuracy"])