Created by: VamWolf

   with mixed_layer(size=256) as m:
       m += full_matrix_projection(input=layer1)
       m += identity_projection(input=layer2)

新paddle 的这个语法，与下面的这个写法的意思是一样的吧？除了看demo.还有官员Layer 配置的一些教程写法么. 为什么配置成这样的？

   MixedLayer(
        name = query + "_reverse_rnn%d_input" % j,
        size = hidden_dim, 
        bias = False,
        inputs = [FullMatrixProjection( j,
                initial_std = 1 / math.sqrt(hidden_dim), 
                parameter_name = "  j,
                learning_rate =lr_hid_col),