標準ライブラリ
This segment should take about 1 hour and 10 minutes. It contains:
| Slide | Duration |
|---|---|
| 標準ライブラリ | 3 minutes |
| ドキュメンテーションテスト | 5 minutes |
| Option | 10 minutes |
| Result | 10 minutes |
| 文字列（String） | 10 minutes |
| Vec | 10 minutes |
| HashMap | 10 minutes |
| 練習問題 | 10 minutes |
For each of the slides in this section, spend some time reviewing the documentation pages, highlighting some of the more common methods.