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zhjwy9343 31f65f036a [Doc] user guide CN chapter 6 (#2452)
* [Doc] Add 1st CN in chapter 6

* [Doc] Add 1st CN in chapter 6

* [Doc] Add 1st CN in chapter 6.1

* [Doc] Add 1st CN in chapter 6.1

* [Doc] Add 1st CN in chapter 6.2

* [Doc] Add CN in chapter 6.2

* [Doc] Add CN in chapter 6.3

* [Doc] Fix a code bug in chapter 6.3

* [Doc] Add CN in chapter 6.4, 6.5, and 6.6.

* [Doc] Add CN in chapter 6.4, 6.5, and 6.6,then remove EN parts.

* [Doc] revised 6.4, 6.5, and 6.6.

* [Doc] 2nd round of copyediting.

* Delete syn1.bin

Remove this unrelated file to this branch

* [Doc] Update guide_cn index.rst.

* [Doc] Update guide_cn index.rst.

* [Doc] Update guide_cn index.rst.

* [Doc] Update guide_cn index.rst.

* [Doc] Add chapter 7 in index page

* [Doc] edit chapter 6 in PR

* [Doc] edit chapter 6 in PR

* [Doc] Copyediting with Murphy and Minjie's comments.

* [Doc] Fix doc line in the previous chapters.

Co-authored-by: Jinjing Zhou <VoVAllen@users.noreply.github.com>
Co-authored-by: Mufei Li <mufeili1996@gmail.com>
Co-authored-by: Minjie Wang <wmjlyjemaine@gmail.com>
2021-01-13 17:12:33 +08:00

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.. _guide_cn-message-passing-part:
2.3 在图的一部分上进行消息传递
-------------------------
:ref:`(English Version) <guide-message-passing-part>`
如果用户只想更新图中的部分节点,可以先通过想要囊括的节点编号创建一个子图,
然后在子图上调用 :meth:`~dgl.DGLGraph.update_all` 方法。例如:
.. code::
nid = [0, 2, 3, 6, 7, 9]
sg = g.subgraph(nid)
sg.update_all(message_func, reduce_func, apply_node_func)
这是小批量训练中的常见用法。更多详细用法请参考用户指南 :ref:`guide_cn-minibatch`