Angular:在表达式中与作用域交互

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新建expression_scope.html页面



<!DOCTYPE html>
<html lang="en" ng-app="myApp">
<head>
    <Meta charset="UTF-8">
    <title>AngularJs Expressions</title>
    <style>
        a{color:blue; text-decoration: underline;cursor:pointer}
    </style>
</head>
<body>
<div ng-controller="myController">
    Directly accessing variables in the scope:<br>
    {{speed}} {{vehicle}}<hr>
    Adding variables in the scope:<br>
    {{speed + ' '+vehicle}}<hr>
    Calling function in the scope:<br>
    {{lower(speed)}} {{upper('Jeep')}}<br>
    <a ng-click="setValues('Fast',newVehicle)">
        Click to change to Fast {{newVehicle}} #为文字增加ng-click事件
    </a><hr>
    <a  ng-click="setValues(newSpeed,'Rocket')">
        Click to change to {{newSpeed}} Rocket
    </a><hr>


    <a  ng-click="vehicle='Car'">
        Click to change the vehicle to a Car
    </a><hr>
    <a  ng-click="vehicle='Enhanced'+vehicle">
        Click to Enhance Vehicle
    </a><hr>
    <script src ="http://code.angularjs.org/1.3.0/angular.min.js"></script>
    <script  src = "expression_scope.js"></script>
</div>


</body>
</html>



新建expression_scope.js页面
/**
 * Created by 奔跑的阿甘
 */
angular.module('myApp',[]).controller('myController',function ($scope) {
    $scope.speed = 'Slow';
    $scope.vehicle = "Train";
    $scope.newSpeed = 'Hypersonic';
    $scope.newVehicle = 'Plane';
    $scope.upper = function (aString) {
    return angular.uppercase(aString);
    };
    $scope.lower = function (aString) {
   return angular.lowercase(aString);
    };
    $scope.setValues = function (speed,vehicle) {
        $scope.speed = speed;
        $scope.vehicle = vehicle;


    };


});

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