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<body>
<div ng-app="myApp">
<div ng-controller="firstController">
<p>价格:<input type="text" ng-model="iphone.money"></p>
<p>个数:<input type="text" ng-model="iphone.num"></p>
<p>费用:<span>{{ sum() | currency:‘￥‘ }}</span></p>
<p>运费:<span>{{iphone.fre | currency:‘￥‘}}</span></p>
<p>总额:<span>{{ sum() + iphone.fre | currency:‘￥‘}}</span></p>
</div>
</div>
<script type="text/javascript">
var app = angular.module("myApp", []);
app.controller(‘firstController‘, [‘$scope‘, function ($scope) {
//对象定义
$scope.iphone = {
money: 5,
num: 1,
fre: 10
};
//计算总量和个数
$scope.sum = function () {
return $scope.iphone.money * $scope.iphone.num;
}
//如果总价大于100，运费变成0 可以监听函数，也可以直接监听对象属性
$scope.$watch($scope.sum,function (newValue,oldValue) {
$scope.iphone.fre = newValue >= 100 ? 0 : 10;
});
}]);
</script>
</body>
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原文地址：http://www.cnblogs.com/MarchThree/p/5353243.html
