您可以获取任何层的输出，而不仅仅是嵌入层，如此处:

You can get the output of any layer, not just an embedding layer, as described here:

from keras import backend as K
get_3rd_layer_output = K.function([model.layers[0].input],
                                  [model.layers[3].output])
layer_output = get_3rd_layer_output([X])[0]

在您的情况下，您希望使用model.layers[0].output而不是model.layers[3].output.

In your case, you would want model.layers[0].output instead of model.layers[3].output.