时间：2020-10-21 21:00:53 | 栏目：AngularJS | 点击：次
最近在做AngularJS 项目，这是写的一个60秒倒计时, angularjs 与jq不同， 不是使用dom节点操作，而是数据操作，写倒计时，最好是使用$timeout与$interval ，不要使用settimeout与setinterval 。$timeout与$interval 可使绑定数据直接更新。
html
<a href="javascript:" rel="external nofollow" ng-click="sendphonecode(reg_phone)" ng-class="paraclass" ng-bind="paracont">获取验证码</a>
angularjs
angular.module('controllers', []).controller('registerCtrl', function($scope,$interval){
$scope.paracont = "获取验证码";
$scope.paraclass = "but_null";
$scope.paraevent = true;
var second = 60,
timePromise = undefined;
timePromise = $interval(function(){
if(second<=0){
$interval.cancel(timePromise);
timePromise = undefined;
second = 60;
$scope.paracont = "重发验证码";
$scope.paraclass = "but_null";
$scope.paraevent = true;
}else{
$scope.paracont = second + "秒后可重发";
$scope.paraclass = "not but_null";
second--;
}
},1000,100);
});