AngularJS 实现点击按钮获取验证码功能实例代码

<div ng-controller="forGetPassword" ng-app="routingDemoApp">  <form novalidate name="forget">    <header class="bar bar-nav">      <a href="javascript:history.go(-1);" rel="external nofollow" class="ui-header-btn ui-header-btn-sm"></a>      <h1 class='title'>忘记密码</h1>    </header>    <div class="gorgetpassowrd">      <ul>        <li>          <input type="number" placeholder="请输入您的手机号码" required ng-model="mobile" name="mobile" ng-pattern="/^1[3|4|5|7|8]{1}[0-9]{9}$/">        </li>        <div ng-show="forget.mobile.$dirty && !forget.mobile.invalid">          <p class="textinfo" ng-show="forget.mobile.$error.required">手机号码必填</p>          <p class="textinfo" ng-show="forget.mobile.$error.pattern">手机号码格式不正确</p>        </div>        <li>          <input type="number" placeholder="验证码" name="code" ng-model="code" required ng-minlength="6" ng-maxlength="6">          <a class="getCode paraclass" ng-click="getCode()" ng-bind="paracont" ng-disabled="paraevent"></a>        </li>        <div ng-show="forget.code.$dirty && !forget.code.invalid">          <p class="textinfo" ng-show="forget.code.$error.required">验证码必填</p>          <p class="textinfo" ng-show="forget.code.$error.minlength">验证码为6位数字</p>          <p class="textinfo" ng-show="forget.code.$error.maxlength">验证码为6位数字</p>        </div>      </ul>      <p class="textinfo" ng-bind="mobiletest"></p>      <a class="button button-warning next-btn">下一步</a>    </div>  </form>    <div class="changePwd">      <form novalidate name="changePwd">      <ul>        <li>          <input type="password" placeholder="请输入新密码" required ng-model="newPwd" name="newPwd" ng-pattern="/^[a-zA-Z0-9]{6,20}/">        </li>        <div ng-show="changePwd.newPwd.$dirty && !changePwd.newPwd.invalid">          <p class="textinfo" ng-show="changePwd.newPwd.$error.required">密码必须填</p>          <p class="textinfo" ng-show="changePwd.newPwd.$error.pattern">密码由8-20位数字和字母组成</p>        </div>        <li>          <input type="password" placeholder="再次输入新密码" name="resetPwd" ng-model="resetPwd" >        </li>        <div ng-show="changePwd.newPwd.$valid">          <p class="textinfo" ng-show="newPwd != resetPwd">两次输入的密码不一致</p>        </div>      </ul>      <a class="button button-warning next-btn">确认修改</a>      </form>    </div></div><script>var myCtrl = angular.module('routingDemoApp', ['ngRoute','infinite-scroll'])myCtrl.controller('forGetPassword',function($scope,$interval){  $scope.paracont = "获取验证码";  $scope.paraclass = "but_null";  $scope.paraevent = true;  var second = null,timePromise = undefined;  $scope.getCode =function(){    var mobile = $scope.mobile;    if(second === null){      second = 60;      if(mobile == undefined || mobile ==""){        $scope.mobiletest = "请输入手机号码";        return false;      }else{        $scope.mobiletest = "";        timePromise = $interval(function(){          if(second<=0){            $interval.cancel(timePromise);            timePromise = undefined;            second = null;            $scope.paracont = "重发验证码";            $scope.paraclass = "but_null";            $scope.paraevent = true;          }else{            $scope.paracont = second + "s";            second--;          }        },1000,100);      }    }else{      return false;    }  }});</script>