源代码:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script> </head> <body ng-app="myNoteApp" ng-controller="myNoteCtrl"> <h2>我的笔记</h2> <textarea ng-model="message" cols="40" rows="10"></textarea> <p> <button ng-click="save()">保存</button> <button ng-click="clear()">清除</button> </p> <p>剩余字数: <span ng-bind="left()"></span></p> <script > var app = angular.module("myNoteApp", []); app.controller("myNoteCtrl", function($scope) { $scope.message = ""; $scope.left = function() { return 100 - $scope.message.length; }; $scope.clear = function() { $scope.message = ""; }; $scope.save = function() { alert("Note Saved"); }; }); </script> </body> </html>
运行结果：