input 的监听事件 ng-change
<form ng-controller="StartUpController">
Starting : <input ng-change="computeNeeded()" ng-model="funding.startingEstimate">
Recommendation: {{funding.needed}}
</form>
function StartUpController($scope) {
$scope.funding = { startingEstimate : 0};
$scope.computeNeeded = function () {
$scope.funding.needed = $scope.funding.startingEstimate * 10;
}
}
检测数据是否变化
$scope.$watch('funding.startingEstimate', computeNeeded);
