> For the complete documentation index, see [llms.txt](https://gitbook.ziyuesinicization.site/blitz-basic-language-reference/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gitbook.ziyuesinicization.site/blitz-basic-language-reference/zh_hans/keywords.md).

# 关键字

 以下关键字内置在了 Blitz 中，且不可作为标识符使用（例如变量、函数名、标签等）：

{% code overflow="wrap" %}

```basic
After, And, Before, Case, Const, Data, Default, Delete, Dim, Each, Else, ElseIf, End, EndIf, Exit, False, Field, First, Float, For, Forever, Function, Global, Gosub, Goto, If, Insert, Int, Last, Local, Mod, New, Next, Not, Null, Or, Pi, Read, Repeat, Restore, Return, Sar, Select, Shl, Shr, Step, Str, Then, To, True, Type, Until, Wend, While, Xor, Include
```

{% endcode %}