# AngularJS Bootstrap
AngularJS 的首選樣式表是 Twitter Bootstrap， Twitter Bootstrap 是目前最受歡迎的前端框架。
[查看 Bootstrap教程](/bootstrap/bootstrap-tutorial.html "Bootstrap教程")。
## Bootstrap
你可以在你的 AngularJS 應用中加入 Twitter Bootstrap，你可以在你的 <head>元素中添加如下代碼:
```
<link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
```
如果站點在國內，建議使用百度靜態資源庫的Bootstrap，代碼如下：
```
<link rel="stylesheet" href="//apps.bdimg.com/libs/bootstrap/3.2.0/css/bootstrap.min.css">
```
以下是一個完整的 HTML 實例, 使用了 AngularJS 指令和 Bootstrap 類。
## HTML 代碼
```
<!DOCTYPE html>
<html ang-app="">
<head>
<link rel="stylesheet" href="http://apps.bdimg.com/libs/bootstrap/3.2.0/css/bootstrap.min.css">
</head>
<body ng-controller="userController">
<div class="container">
<h3>Users</h3>
<table class="table table-striped">
? <thead><tr>
??? <th>Edit</th>
??? <th>First Name</th>
??? <th>Last Name</th>
? </tr></thead>
? <tbody><tr ng-repeat="user in users">
??? <td>
????? <button class="btn" ng-click="editUser(user.id)">
????? <span class="glyphicon glyphicon-pencil"></span> Edit
????? </button>
??? </td>
??? <td>{{ user.fName }}</td>
??? <td>{{ user.lName }}</td>
? </tr></tbody>
</table>
<hr>
<button class="btn btn-success" ng-click="editUser('new')">
? <span class="glyphicon glyphicon-user"></span> Create New User
</button>
<hr>
<h3 ng-show="edit">Create New User:</h3>
<h3 ng-hide="edit">Edit User:</h3>
<form class="form-horizontal">
<div class="form-group">
? <label class="col-sm-2 control-label">First Name:</label>
? <div class="col-sm-10">
??? <input type="text" ng-model="fName" ng-disabled="!edit" placeholder="First Name">
? </div>
</div>
<div class="form-group">
? <label class="col-sm-2 control-label">Last Name:</label>
? <div class="col-sm-10">
??? <input type="text" ng-model="lName" ng-disabled="!edit" placeholder="Last Name">
? </div>
</div>
<div class="form-group">
? <label class="col-sm-2 control-label">Password:</label>
? <div class="col-sm-10">
??? <input type="password" ng-model="passw1" placeholder="Password">
? </div>
</div>
<div class="form-group">
? <label class="col-sm-2 control-label">Repeat:</label>
? <div class="col-sm-10">
??? <input type="password" ng-model="passw2" placeholder="Repeat Password">
? </div>
</div>
</form>
<hr>
<button class="btn btn-success" ng-disabled="error || incomplete">
? <span class="glyphicon glyphicon-save"></span> Save Changes
</button>
</div>
<script src = "http://apps.bdimg.com/libs/angular.js/1.2.15/angular.min.js"></script>
<script src = "myUsers.js"></script>
</body>
</html>>
```
## 指令解析
| AngularJS 指令 | 描述 |
| --- | --- |
| html ng-app | 為 `<html> `元素定義一個應用(未命名) |
| body ng-controller | 為 `<body>` 元素定義一個控制器 |
| tr ng-repeat | 循環 users 對象數組，每個 user 對象放在 `<tr>` 元素中。 |
| button ng-click | 當點擊 `<button>` 元素時調用函數 editUser() |
| h3 ng-show | 如果 edit = true 顯示 `<h3>` 元素 |
| h3 ng-hide | 如果 edit = true 隱藏 `<h3>` 元素 |
| input ng-model | 為應用程序綁定 `<input>` 元素 |
| button ng-disabled | 如果發生錯誤或者 ncomplete = true 禁用 `<button>` 元素 |
## Bootstrap 類解析
| 元素 | Bootstrap 類 | 定義 |
| --- | --- | --- |
| `<div>` | container | 內容容器 |
| `<table>` | table | 表格 |
| `<table>` | table-striped | 帶條紋背景的表格 |
| `<button>` | btn | 按鈕 |
| `<button>` | btn-success | 成功按鈕 |
| `<span>` | glyphicon | 字形圖標 |
| `<span>` | glyphicon-pencil | 鉛筆圖標 |
| `<span>` | glyphicon-user | 用戶圖標 |
| `<span>` | glyphicon-save | 保存圖標 |
| `<form>` | form-horizontal | 水平表格 |
| `<div>` | form-group | 表單組 |
| `<label>` | control-label | 控制器標簽 |
| `<label>` | col-sm-2 | 跨越 2 列 |
| `<div>` | col-sm-10 | 跨越 10 列 |
## JavaScript 代碼
```
function userController($scope) {
$scope.fName = '';
$scope.lName = '';
$scope.passw1 = '';
$scope.passw2 = '';
$scope.users = [
{id:1, fName:'Hege',? lName:"Pege" },
{id:2, fName:'Kim',?? lName:"Pim" },
{id:3, fName:'Sal',?? lName:"Smith" },
{id:4, fName:'Jack',? lName:"Jones" },
{id:5, fName:'John',? lName:"Doe" },
{id:6, fName:'Peter', lName:"Pan" }
];
$scope.edit = true;
$scope.error = false;
$scope.incomplete = false;
$scope.editUser = function(id) {
? if (id == 'new') {
??? $scope.edit = true;
??? $scope.incomplete = true;
??? $scope.fName = '';
??? $scope.lName = '';
??? } else {
??? $scope.edit = false;
??? $scope.fName = $scope.users[id-1].fName;
??? $scope.lName = $scope.users[id-1].lName;
? }
};
$scope.$watch('passw1',function() {$scope.test();});
$scope.$watch('passw2',function() {$scope.test();});
$scope.$watch('fName',?function() {$scope.test();});
$scope.$watch('lName',?function() {$scope.test();});
$scope.test = function() {
? if ($scope.passw1 !== $scope.passw2) {
??? $scope.error = true;
??? } else {
??? $scope.error = false;
? }
? $scope.incomplete = false;
? if ($scope.edit && (!$scope.fName.length ||
? !$scope.lName.length ||
? !$scope.passw1.length || !$scope.passw2.length)) {
?????? $scope.incomplete = true;
? }
};
}
```
## JavaScript 代碼解析
| Scope 屬性 | 用途 |
| --- | --- |
| $scope.fName | 模型變量 (用戶名) |
| $scope.lName | 模型變量 (用戶姓) |
| $scope.passw1 | 模型變量 (用戶密碼 1) |
| $scope.passw2 | 模型變量 (用戶密碼 2) |
| $scope.users | 模型變量 (用戶的數組) |
| $scope.edit | 當用戶點擊創建用戶時設置為true。 |
| $scope.error | 如果 passw1 不等于 passw2 設置為 true |
| $scope.incomplete | 如果每個字段都為空(length = 0)設置為 true |
| $scope.editUser | 設置模型變量 |
| $scope.watch | 監控模型變量 |
| $scope.test | 驗證模型變量的錯誤和完整性 |
