linux新建用户one,tow,there

要在Linux系统中创建新用户，需要使用以下命令：

sudo adduser one
sudo adduser two
sudo adduser three

其中，`adduser` 是一个命令，后面跟上要创建的用户名。

在执行上述命令后，系统会提示输入新用户的密码和其他信息，例如全名、房间号码等。按照提示输入即可完成用户创建。

相关问题

Third task is to draw a class diagram based on the following problem: There is a country that has cities and lot of roads between them. Cities and roads can be filled with traveling units (there are at least horse carriages, knight convoys and donkeys). When a traveling unit is in the road there is a change that bandit comes and captures it. The bandit can tow traveling units to a farm and hide them there. Every traveling unit has a driver that has nationality and name. Traveling units have also number of wheels/legs and weapons. Some of them can fire and some cannot. All the traveling units can move, but their max speed varies.

Sure, based on the given problem, here is a class diagram that represents the entities and their relationships:

+-----------------+            +-----------------+
|     Country     |<>----------|      City       |
+-----------------+            +-----------------+
|                 |            |                 |
| - name          |            | - name          |
| - cities        |            | - roads         |
|                 |            |                 |
| + addCity()     |            | + addRoad()     |
| + removeCity()  |            | + removeRoad()  |
+-----------------+            +-----------------+

         ^
         |
         |
         |
         |
         |
+----------------------+
|   TravelingUnit      |
+----------------------+
|                      |
| - type               |
| - driver             |
| - wheels/legs        |
| - weapons            |
| - canFire            |
| - maxSpeed           |
|                      |
| + move()             |
| + captureByBandit()  |
+----------------------+

         ^
         |
         |
         |
         |
         |
+---------------------+
|       Driver        |
+---------------------+
|                     |
| - nationality       |
| - name              |
|                     |
+---------------------+

Explanation:
- The `Country` class represents a country and has a relationship with multiple `City` objects through the `cities` attribute. It also has attributes like `name` and methods like `addCity()` and `removeCity()` for managing cities.
- The `City` class represents a city and has a relationship with multiple `Road` objects through the `roads` attribute. It has attributes like `name` and methods like `addRoad()` and `removeRoad()` for managing roads.
- The `TravelingUnit` class represents a traveling unit and contains attributes like `type`, `driver`, `wheels/legs`, `weapons`, `canFire`, and `maxSpeed`. It has methods like `move()` for moving the unit and `captureByBandit()` for capturing the unit.
- The `Driver` class represents a driver and contains attributes like `nationality` and `name`. It is associated with the `TravelingUnit` class.

Note: This is a basic representation of the system based on the given problem statement. There might be additional classes or relationships required depending on the specific requirements of the system.

<pc-layout-tow v-if="cutTemplates === 'themeTemplate'"></pc-layout-tow> <el-backtop :bottom="50"></el-backtop>这段代码是什么意思

这段代码是Vue模板代码，用于根据条件动态渲染不同的组件。

`<pc-layout-tow v-if="cutTemplates === 'themeTemplate'"></pc-layout-tow>` 表示如果 `cutTemplates` 的值等于 `'themeTemplate'`，则渲染 `<pc-layout-tow>` 组件。否则，如果 `cutTemplates` 的值不等于 `'themeTemplate'`，则该组件不会被渲染。

`<el-backtop :bottom="50"></el-backtop>` 则是渲染一个 `<el-backtop>` 组件，并设置了一个属性 `bottom` 的值为 `50`。这个组件通常用于在页面滚动时显示一个返回顶部的按钮，并通过 `bottom` 属性来设置按钮距离底部的距离。

综合起来看，这段代码的意思是，根据条件 `cutTemplates === 'themeTemplate'` 来决定是否渲染 `<pc-layout-tow>` 组件，并且无论条件是否满足，都会渲染一个带有返回顶部按钮的 `<el-backtop>` 组件。