angularjs的进度条

项目里需要一个进度条，所以就在网上查找资料学习，看到了网友“雪狼”的代码分享，写的很高明，很精练，很厉害，原文链接：http://www.ngnice.com/showcase/#/show/progress，结合自己的项目需要，自己改编了个简单的进度条，可以加在项目里面，进度条的开始和结束由自己决定。


var myApp = angular.module('myApp', []);

myApp.controller('main', ['$scope', '$interval', function($scope, $interval){
    var vm = $scope.vm = {};
    vm.value = 0;
    vm.style = 'progress-bar-danger';
    vm.showLabel = true;
    vm.striped = true;

    $scope.selectValue = function (){
        console.log(vm.style);
    };
    var index = 0;
    var timeId = 500;
    $scope.count = function(){
        var start = $interval(function(){
            vm.value =  ++index;
            if (index > 99) {
                $interval.cancel(start);
            }
            if (index == 60) {
                index = 99;
            }
        }, timeId);
    };

}]);



2. [代码]html     
<div ng-class="{progress: true, 'progress-striped': vm.striped}" class="col-md-4">
      <div ng-class="['progress-bar', vm.style]" ng-style="{width: vm.value + '%'}">
            <div ng-if="vm.showLabel">{{vm.value}}%</div>
      </div>
</div>
<button class="btn btn-success" ng-click="count()">开始进度</button>