# 02 基本类型

Go支持你对静态语言所预期的所有基本数据类型：

| 类型称呼 | 类型(Type)                                                      | 字面量(Literal)        |
| ---- | ------------------------------------------------------------- | ------------------- |
| 布尔值  | bool                                                          | true, false         |
| 整数   | int, int8, uint8, int16, uint16, int32, uint32, int64, uint64 | 38                  |
| 浮点数  | float64, float32 (浮点数)                                        | 23.5, 2e-12         |
| 字节   | byte (uint8, 1个char)                                          | 'a'                 |
| 符文   | rune (int32, 1个Unicode字符)                                     | 'p'                 |
| 字符串  | string                                                        | "foo", \`bar\`      |
| 常量   | constants                                                     | const a = 8         |
| 结构体  | structs                                                       | type Foo struct {}  |
| 切片   | slice (可变长向量)                                                 | \[]int = {1, -3, 4} |
| 数组   | array (固定长度向量)                                                | \[2]int = {2, -3}   |
| 映射   | map (其他语言中称为字典dict或哈希表hash table)                             | map\[string]int     |


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