简话Angular 03 Angular内置表达式大全

一句话: 大多数html标签属性和事件都有一个对应的ng指令

说明:这些指令和原生html最大的区别就是可以动态更新.比如一个div的样式用ng-class后,我们就可以随意应用css class.

1. 内置指令大全

ng-include	包含一个文件
ng-href ng-src	对应 href src
ng-disabled ng-readonly	对应 disabled readonly
ng-checked ng-selected ng-options ng-true-value ng-false-value	对应 checked select option
ng-class ng-style ng-class-even ng-class-odd ng-show ng-hide ng-cloak	class style, 隔行用不同样式, 元素显示与否, 加载不完全时闪烁效果
ng-switch ng-if ng-repeat ng-repeat-start ng-repeat-end	逻辑控制 元素生成与否与遍历元素
ng-submit ng-click ng-dblclick ng-change ng-mousedown ng-mouseenter ng-mouseleave ng-mousemove ng-mouseover ng-mouseup	相应的鼠标键盘事件
ng-bind ng-bind-html ng-bind-html-unsafe ng-bind-template	绑定显示数据: 文本,半html,全html,组合模板
ng-view ng-route	路由功能

2.  运行结果(所有标签都有相应实例)

url: http://jimuyouyou.github.io/angular-bootstrap-rest-seed/examples/angular/3-ng-directives.html

3. 源码

 <div>
         <span  ng-init="global.trueval='hello'"></span>
         <span  ng-init="global.falseval=false"></span>
         <span  ng-init="global.array=['dog', 'goat', 'cat']"></span>
         <span  ng-init="global.objArray=[{name: 'dog', age: 10}, {name: 'goat', age: 20}, {name: 'cat', age: 30}]"></span>

         <hr>
         <div>
             <label>ng-include实例-有的浏览器可能不支持</label>
             <div ng-include="'partials/ng-include.html'"></div>

             <span  ng-init="ni.tempalteName='partials/ng-include-var.html'"></span>
             <div ng-include="ni.tempalteName"></div>
         </div>

         <hr>
         <div>
             <p></p>
             <label>ng-href ng-src实例</label><p></p>
             <span  ng-init="nh.baidu='www.baidu.com'"></span>
             <a ng-href="http://{{nh.baidu}}">ng-href百度</a><br>
             <img ng-src="https://www.baidu.com/img/bd_logo1.png" style="width:60px;height:20px" />ng-src
         </div>

         <hr>
         <div><p></p>
             <label>ng-disabled ng-readonly实例</label><p></p>
             <button ng-disabled="global.trueval">ng-disabled</button>
             <input type="text" ng-readonly="global.trueval" placeholder="ng-readonly">
         </div>

         <hr>
         <div><p></p>
             <label>ng-checked ng-selected ng-options ng-true-value ng-false-value实例</label><p></p>
             <input type="checkbox" ng-checked="global.trueval" ng-true-value="admin" ng-false-value="basic"> ng-checked ng-true-value="admin" ng-false-value="basic"

             <p></p>
             <select ng-model='test.name' ng-options="elem.value as elem.name for elem in global.objArray">
                 <option>--</option>
             </select>ng-options

             <select>
                 <option>--</option>
                 <option ng-repeat="elem in global.objArray" value="{{elem.name}}" ng-selected="elem.name=='dog'">
                         {{elem.age}}
                 </option>
             </select>ng-selected

         </div>

         <hr>
         <div><p></p>
             <label>ng-class ng-style ng-class-even ng-class-odd ng-show ng-hide ng-cloak实例</label><p></p>
             <input type="text" ng-class="{'btn-success' : global.trueval, 'btn': global.falseval}" ng-style="{width: '300px', height: '30px'}"> ng-class ng-style <p></p>
             <table>
                 <tr ng-repeat="elem in global.objArray" ng-class-even="'bg-success'" ng-class-odd="'bg-danger'"><td>{{elem.name}} ng-class-even ng-class-odd</td></tr>
             </table>
             <input type="button" ng-show="global.trueval" class="btn btn-success" value="ng-show">
             <input type="button" ng-hide="!global.trueval" class="btn btn-primary" value="ng-hide">
             <p ng-cloak>ng-cloak </p>
         </div>

         <hr>
         <div><p></p>
             <label>ng-switch ng-if ng-repeat ng-repeat-start ng-repeat-end实例</label><p></p>
             <div ng-switch on="global.trueval">
                 <div ng-switch-when="abc">ng-switch-when abc</div>
                 <div ng-switch-default>ng-switch-default</div>
             </div>
             <div ng-if="global.trueval">ng-if</div>

             <ul>
                 <li ng-repeat-start="elem in global.objArray">
                     <strong>{{elem.name}}</strong>
                 </li>
                 <li ng-repeat-end>{{elem.age}}</li>
             </ul>ng-repeat-start ng-repeat-end: 从start标记的元素开始，到end标记的元素结束，作为循环体进行循环输出,可以跳出父子元素关系。
         </div>

         <hr>
         <div><p></p>
             <label>ng-submit ng-click  ng-dblclick ng-change ng-mousedown ng-mouseenter ng-mouseleave ng-mousemove ng-mouseover ng-mouseup实例</label>
             <div ng-controller="EventsController">
                 <span class="bg-danger">{{currentEventName}}</span><p></p>
                 <button ng-click="ngEvents('ng-click')">ng-click</button>
                 <span ng-dblclick="ngEvents('ng-dblclick')">ng-dblclick</span>
                 <input ng-model="currentEventName" type="text" ng-change="ngEvents('ng-change')" placehodler"ng-change me"><p></p>
                 <span ng-mousedown="ngEvents('ng-mousedow')" ng-mouseenter="ngEvents('ng-mousedow')" ng-mouseleave="ngEvents('ng-mouseleave')" ng-mousemove="ngEvents('ng-mousemove')" ng-mouseover="ngEvents('ng-mouseover')" ng-mouseup="ngEvents('ng-mouseup')" >ng-mousedown ng-mouseenter ng-mouseleave ng-mousemove ng-mouseover ng-mouseup</span>
             </div>

             <script>
             var  myApp = angular.module('myApp', []);
             myApp.controller('EventsController', function($scope) {
                 $scope.ngEvents = function(param1) {
                     $scope.currentEventName = param1;
                 }
             });
             </script>
         </div>

         <hr>
         <div ng-controller="BindController"><p></p>
             <label>ng-bind ng-bind-html ng-bind-html-unsafe ng-bind-template实例</label><p></p>
             <span ng-bind="nb.textval"></span> ng-bind <p></p>
             <span ng-bind-template="{{ nb.textval }} and ng-bind-template {{ nb.htmlval }}"></span> ng-bind-template <p></p>
             ng-bind-html ng-bind-html-unsafe需要引入sanitize文件,也就是说Angular不推荐html

             <script>
             myApp.controller('BindController', function($scope, $sce) {
                 $scope.nb = {};
                 $scope.nb.textval = 'I am a text';
                 $scope.nb.htmlval = $sce.trustAsHtml('I am a html<strong>strong</strong> content');
             });
             </script>
         </div>

         <hr>
         <div><p></p>
             <label>ng-view ng-route实例</label><p></p>
             url: <a href="http://jimuyouyou.github.io/SearchableCookbook4Coder/plugins/angular-js/ng-view-ngRoute.html">http://jimuyouyou.github.io/SearchableCookbook4Coder/plugins/angular-js/ng-view-ngRoute.html</a>
         </div>
         <hr><hr>

     </div>

4. 项目地址

github: https://github.com/jimuyouyou/angular-bootstrap-rest-seed