* descriptions of what they do:
 *
 * <p>[1] This URL scheme is based largely on the <i>SMB
 * Filesharing URL Scheme</i> IETF draft.
 *
 * <table border="1">
 * <caption>SMB URL Examples</caption>
 * <tr>
 * <td colspan="2"><b>SMB URL Examples</b></td>
 * <tr><td ><b>URL</b></td><td><b>Description</b></td></tr>
 *
 * <tr><td ><code>smb1://users-nyc;miallen:mypass@angus/tmp/</code></td><td>

This text was produced by Project Gutenberg www.gutenberg.org,
an organization that produces free electronic books, mostly of
works old enough that they have passed into the public domain.


                            CHAPTER I

                      Down the Rabbit-Hole


  Alice was beginning to get very tired of sitting by her sister
on the bank, and of having nothing to do:  once or twice she had

 * }
 *
 * <p>It is guaranteed that {@code encoding.decode(encoding.encode(x))} is always equal to {@code
 * x}, but the reverse does not necessarily hold.
 *
 * <table>
 * <caption>Encodings</caption>
 * <tr>
 * <th>Encoding
 * <th>Alphabet
 * <th>{@code char:byte} ratio
 * <th>Default padding
 * <th>Comments
 * <tr>
 * <td>{@link #base16()}
 * <td>0-9 A-F
 * <td>2.00
 * <td>N/A

// 現在就可以讀取到環境變數了

Hello Wade Wilson from Python

// 在此之後這個環境變數將不再存在
$ python main.py

Hello World from Python
```

</div>

/// tip

你可以在 [The Twelve-Factor App: 配置](https://12factor.net/config) 中了解更多資訊。

///

## 型別和驗證 { #types-and-validation }

這些環境變數只能處理**文字字串**，因為它們是位於 Python 範疇之外的，必須與其他程式和作業系統的其餘部分相容（甚至與不同的作業系統相容，如 Linux、Windows、macOS）。

rit}.table>thead{vertical-align:bottom}.table-group-divider{border-top:calc(var(--bs-border-width) * 2) solid currentcolor}.caption-top{caption-side:top}.table-sm>:not(caption)>*>*{padding:.25rem .25rem}.table-bordered>:not(caption)>*{border-width:var(--bs-border-width) 0}.table-bordered>:not(caption)>*>*{border-width:0 var(--bs-border-width)}.table-borderless>:not(caption)>*>*{border-bottom-width:0}.table-borderless>:not(:first-child){border-top-width:0}.table-striped>tbody>tr:nth-of-type(odd)>...

<div style="text-align: right; margin-right: 10%;">Timothy Crosley – <strong>[Hug](https://github.com/hugapi/hug)-Autor</strong> <a href="https://news.ycombinator.com/item?id=19455465"><small>(Ref.)</small></a></div>

---

// 이제 환경 변수를 읽을 수 있습니다

Hello Wade Wilson from Python

// 이후에는 해당 환경 변수가 존재하지 않습니다
$ python main.py

Hello World from Python
```

</div>

/// tip | 팁

[The Twelve-Factor App: Config](https://12factor.net/config) 에서 좀 더 자세히 알아볼 수 있습니다.

///

## 타입과 검증 { #types-and-validation }

// 现在就可以读取到环境变量了

Hello Wade Wilson from Python

// 在此之后这个环境变量将不会依然存在
$ python main.py

Hello World from Python
```

</div>

/// tip | 提示

你可以在 [The Twelve-Factor App: 配置](https://12factor.net/config) 中了解更多信息。

///

## 类型和验证 { #types-and-validation }

这些环境变量只能处理**文本字符串**，因为它们是处于 Python 范畴之外的，必须与其他程序和操作系统的其余部分兼容（甚至与不同的操作系统兼容，如 Linux、Windows、macOS）。

          // requireNonNull is safe because right must exist in order to get a negative factor.
          requireNonNull(right);
          if (right.balanceFactor() > 0) {
            right = right.rotateRight();
          }
          return rotateLeft();
        case 2:
          // requireNonNull is safe because left must exist in order to get a positive factor.
          requireNonNull(left);
          if (left.balanceFactor() < 0) {

 * it is either open or unbounded. The construct {@code {x | statement}} is read "the set of all
 * <i>x</i> such that <i>statement</i>.")
 *
 * <blockquote>
 *
 * <table>
 * <caption>Range Types</caption>
 * <tr><th>Notation        <th>Definition               <th>Factory method
 * <tr><td>{@code (a..b)}  <td>{@code {x | a < x < b}}  <td>{@link Range#open open}