.. figure:: ../../_static/logo.png
   :height: 70 px
   :width: 400 px
   :align: left

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用户手册
=============

This page describes API reference. How to use the APIs to program.

.. toctree::
    :maxdepth: 2

    arch/arch_summary
    driver/driver_summary
    components/components_summary
    os/os_summary


.. image:: ../../_static/logo.png
   :scale: 10 %
   :align: right