!3094 net_parameter_init

Merge pull request !3094 from mindspore_ding/new_ding_parameter_mind

mindspore/train/serialization.py

@@ -424,6 +424,7 @@ def export(net, *inputs, file_name, file_format='GEIR'):
     if is_training:
         net.set_train(mode=False)
     # export model
+    net.init_parameters_data()
     if file_format == 'GEIR':
         _executor.compile(net, *inputs, phase='export')
         _executor.export(net, file_name, file_format)