AngularJS 模型

 1.  AngularJS模型主要就是使用的AngularJS的ng-model指令。

  • ng-model指令可以将输入域的值与 AngularJS 创建的变量绑定。
    <!DOCTYPE html>
    <html>
        <head>
            <meta charset="UTF-8">
            <title></title>
            <script type="text/javascript" src="js/angular.min.js"></script>
        </head>
        <body ng-app="myApp">
            <div ng-app="myApp" ng-controller="myCtrl">
                名字: <input ng-model="name">
            </div>
    
            <script>
                var app = angular.module('myApp', []);
                app.controller('myCtrl', function($scope) {
                    $scope.name = "王甘林";
                });
            </script>
        </body>
    </html>
  • 双向绑定:在修改输入域的值时, AngularJS 属性的值也将修改
    <!DOCTYPE html>
    <html>
        <head>
            <meta charset="UTF-8">
            <title></title>
            <script type="text/javascript" src="js/angular.min.js"></script>
        </head>
        <body ng-app="myApp">
            <div ng-app="myApp" ng-controller="myCtrl">
                名字:<input type="text" ng-model="name" /><br />
                <h3>你输入了:{{name}}</h3>
            </div>
    
            <script>
                var app = angular.module('myApp', []);
                app.controller('myCtrl', function($scope) {
                    $scope.name = "王甘林";
                });
            </script>
            
            <p>修改输入框的值,标题的名字也会相应修改。</p>
        </body>
    </html>

  • 验证用户输入:
    <!DOCTYPE html>
    <html>
    
        <head>
            <meta charset="UTF-8">
            <title></title>
            <script type="text/javascript" src="js/angular.min.js"></script>
        </head>
    
        <body ng-app="">
            <form name="myForm">
                Email:
                <input type="email" name="myAddress" ng-model="text">
                <span ng-show="myForm.myAddress.$error.email" >不是一个合法的邮箱地址</span>
            </form>
    
            <p>在输入框中输入你的邮箱地址,如果不是一个合法的邮箱地址,会弹出提示信息。</p>
        </body>
    
    </html>

  •  应用状态:

    <!DOCTYPE html>
    <html>
        <head>
            <meta charset="UTF-8">
            <title></title>
            <script type="text/javascript" src="js/angular.min.js"></script>
        </head>
        <body>
            <form ng-app="" name="myForm" ng-init="myText = 'test@wgl.com'">
                Email:
                <input type="email" name="myAddress" ng-model="myText" required>
                <p>编辑邮箱地址,查看状态的改变。</p>
                <h1>状态</h1>
                <p>Valid: {{myForm.myAddress.$valid}} (如果输入的邮箱是合法的则为 true)。</p>
                <p>Dirty: {{myForm.myAddress.$dirty}} (如果值改变则为 true)。</p>
                <p>Touched: {{myForm.myAddress.$touched}} (如果通过触屏点击则为 true)。</p>
    
            </form>
        </body>
    </html>

  •  

    CSS类:

    <!DOCTYPE html>
    <html>
        <head>
            <meta charset="UTF-8">
            <title></title>
            <script type="text/javascript" src="js/angular.min.js"></script>
            <style>
                input.ng-invalid{
                    background-color: lightblue;
                }
            </style>
        </head>
        <body>
            <form ng-app="" name="myForm">
                输入内容:<input name="myAddress" ng-model="text" required>
            </form>
            
            <p>编辑文本域,不同状态背景颜色会发送变化。</p>
            <p>文本域添加了 required 属性,该值是必须的,如果为空则是不合法的。</p>
        </body>
    </html>

     

posted @ 2017-01-06 16:08  王甘林  阅读(200)  评论(0编辑  收藏  举报