> For the complete documentation index, see [llms.txt](https://koshizuow.gitbook.io/compilerbook/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://koshizuow.gitbook.io/compilerbook/separate_compile_linking/step8/split_files.md).

# 分割檔案

請照本章最前面所述的方式來進行檔案分割。9cc.h 為標頭檔案。依照程式組成方式的不同，1個 .c 檔可能會對應有一個 .h 檔，但是多餘的宣告並不算有害，這裡我們不用管理相依性到那麼細沒關係。準備 9cc.h 這個檔案，在所有的C程式檔都用`#include "9cc.h"`將其引入吧。


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