<!doctype html> <html> <head> <meta charset="utf-8"> <title>NgForm</title> <script type="text/javascript" src="lib/system@0.16.11.js"></script> <script type="text/javascript" src="lib/angular2.dev.js"></script> <script type="text/javascript" src="lib/system.config.js"></script> </head> <body> <ez-app></ez-app> <script type="module"> import {Component,View,bootstrap,NgIf} from "angular2/angular2"; //引入form指令集 import {formDirectives} from "angular2/forms"; //EzApp组件 @Component({selector:"ez-app"}) @View({ directives:[formDirectives,NgIf], template:` <form #f="form" (submit)="search(f.value)"> <select> <option value="web">网页</option> <option value="news">新闻</option> <option value="image">图片</option> </select> <input type="text" ng-control="kw"> <button type="submit">搜索</button> </form> <!--给个简单的反馈--> <h1 *ng-if="kw!=''">正在搜索 {{kw}} ...</h1> `, styles:[`form{background:#90a4ae;padding:5px;}`] }) class EzApp{ constructor(){ this.kw = ""; } search(val){ this.kw = val.kw; //假装在搜索，2秒钟返回 setTimeout(()=>this.kw="",2000); } } bootstrap(EzApp); </script> </body> </html>