> For the complete documentation index, see [llms.txt](https://v-community.gitbook.io/v-by-example/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://v-community.gitbook.io/v-by-example/cn/examples/section_1/primitives.md).

# 基本类型

V的基本类型比Go少。

## 基本数据类型

* bool 也就是 `true` 或者 `false`
* string 字符类型
* 整数类型 `int`
* 浮点数类型 `float`
* rune (Unicode字符串)

## 复合类型

* arrays `[]`
* map `{}`
* struct

## 整数

整数被细分为“signed”和“unsigned”。`signed`表示正或负，`unsigned`仅表示正。

### Signed Integer

| 类型     |    大小    |                范围 |
| ------ | :------: | ----------------: |
| int8   |  8 bits  |     -128 to 27 -1 |
| int16  |  16 bits |   -215 to 215 - 1 |
| int    |  32 bits |   -231 to 231 - 1 |
| int64  |  64 bits |   -263 to 263 - 1 |
| int128 | 128 bits | -2127 to 2127 - 1 |

### Unsigned Integer

| 类型   |    大小    |            范围 |
| ---- | :------: | ------------: |
| byte |  8 bits  |    0 to 27 -1 |
| u16  |  16 bits |  0 to 215 - 1 |
| u32  |  32 bits |  0 to 231 - 1 |
| u64  |  64 bits |  0 to 263 - 1 |
| u128 | 128 bits | 0 to 2127 - 1 |


---

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