用户定义的类型
This segment should take about 50 minutes. It contains:
| Slide | Duration |
|---|---|
| 结构体 | 10 minutes |
| 元组结构体 | 10 minutes |
| 枚举 | 5 minutes |
| 静态变量与常量 | 5 minutes |
| 类型别名 | 2 minutes |
| 练习：电梯事件 | 15 minutes |
This segment should take about 50 minutes. It contains:
| Slide | Duration |
|---|---|
| 结构体 | 10 minutes |
| 元组结构体 | 10 minutes |
| 枚举 | 5 minutes |
| 静态变量与常量 | 5 minutes |
| 类型别名 | 2 minutes |
| 练习：电梯事件 | 15 minutes |