.. |cnc| image:: _static/images/cnc.png
  :scale: 50%

#############################
 宏程序 + G-code
#############################

|cnc|

G-code (also RS-274), which has many variants, is the common name for the most widely used numerical control (NC) programming language. It is used mainly in computer-aided manufacturing for controlling automated machine tools. G-code is sometimes called G programming language.

G代码比较正式的名字是 RS-274或者RS-274D。最早的数控机床是在20世纪50年代由美国人John Parsons发明的，第一代的数控编程语言也在此时诞生。20世纪60年代，EIA（电子工业协会）制定了数控编程语言的最初标准，1980年，形成了这个标准的最终版本（即RS-274-D）。除了这一个标准外，还有其他标准，详见文后的wiki链接。
关于为什么命名G-code或者G&M Code，一个说法是该语言的命令许多都是G或者M字母开头的。

**参考资料**

.. |rs274ngc python3| image:: https://img.shields.io/badge/github-rs274ngc_python3-blue?logo=github
  :target: https://github.com/grwhitehead/rs274ngc-python3

.. |rs274ngc| image:: https://img.shields.io/badge/github-rs274ngc-blue?logo=github
  :target: https://github.com/QGCoder/rs274ngc

.. |pythonic gcode machine| image:: https://img.shields.io/badge/github-pythonic_gcode_machine-blue?logo=github
  :target: https://github.com/FabriceSalvaire/pythonic-gcode-machine

.. |linuxcnc| image:: https://img.shields.io/badge/org-linuxcnc-yellow
  :target: http://linuxcnc.org/

.. |cnc program examples| image:: https://img.shields.io/badge/helmancnc-cnc_program_examples-yellow
  :target: https://www.helmancnc.com/cnc-program-examples/beginner-level/

.. |cnc maro| image:: https://img.shields.io/badge/ref-cnc_macro-red
  :target: https://www.cnczone.com/forums/attachments/2/0/6/1/9/22462.attach

.. |linuxcnc g code| image:: https://img.shields.io/badge/ref-g_code-red
  :target: http://linuxcnc.org/docs/2.8/html/gcode/g-code.html

.. |playground| image:: https://img.shields.io/badge/playground-fanuc_macro_b-green
  :target: https://playground.cnc4me.org/


* |cnc maro| |linuxcnc g code|
* |playground|
* |rs274ngc| |rs274ngc python3| |pythonic gcode machine|
* |linuxcnc|
* |cnc program examples|

*******************
 Table of Contents
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.. toctree::
  :maxdepth: 3
  :numbered:

  gcode-reference/rs-274/index.rst
  test.md