设计思想 ------------
.. toctree:: :maxdepth: 1 motivation/index_cn.rst execution/index_cn.rst concepts/index_cn.rst data_type/index_cn.rst memory/index_cn.rst muti_devices/index_cn.rst dynamic_rnn/index_cn.rst concurrent/index_cn.rst algorithm/index_cn.rst network/index_cn.rst modules/index_cn.rst interface/index_cn.rst dist_train/index_cn.rst
