Angularjs ng重复列表中出错：令牌'$无效'；出人意料

下面是我的错误：

错误：[$parse:syntax]语法错误：标记“$invalid”是意外的，在表达式[{'has-Error'：myForm.am1-0.$invalid}]的第28列处应为[}]，从[$invalid}开始

<div class="row nopadding" ng-repeat="worker in workers">
<div class="col-md-3 nopadding"><h5>{{worker.name}}</h5></div>
<div class="col-md-1 nopadding" ng-repeat="schedule in worker.schedules">
  <div class="row nopadding">
    <div class="col-md-6 nopadding" ng-class="{'has-error': myForm.am1-{{$index}}.$invalid}"><input class="form-control nopadding" type="text" name="am1-{{$index}}" ng-pattern="/(?:[01]\d|2[0123]):(?:[012345]\d)/" ng-model="schedule.am1"
   placeholder="HH:mm" required /></div>
    <div class="col-md-6 nopadding"><input class="form-control nopadding" type="text" name="am2-{{$index}}" ng-pattern="/(?:[01]\d|2[0123]):(?:[012345]\d)/" ng-model="schedule.am2"
   placeholder="HH:mm" required /></div>
  </div>
  <div class="row nopadding">
    <div class="col-md-6 nopadding"><input class="form-control nopadding" type="text" name="pm1-{{$index}}" ng-pattern="/(?:[01]\d|2[0123]):(?:[012345]\d)/" ng-model="schedule.pm1"
   placeholder="HH:mm" required /></div>
    <div class="col-md-6 nopadding"><input class="form-control nopadding" type="text" name="pm2-{{$index}}" ng-pattern="/(?:[01]\d|2[0123]):(?:[012345]\d)/" ng-model="schedule.pm2"
   placeholder="HH:mm" required /></div>
  </div>
  <div class="row nopadding">
    <div class="col-md-6 nopadding"><input class="form-control nopadding" type="text" name="pm2-{{$index}}" ng-pattern="/(?:[01]\d|2[0123]):(?:[012345]\d)/" ng-model="schedule.total"
   placeholder="HH:mm" required /></div>
   <div class="col-md-6 nopadding" />
  </div>
</div>
<div class="col-md-1 nopadding">40</div>
<div class="col-md-1 nopadding">aaaaa</div>

{{worker.name}
40
AAAA

有什么想法吗

---

首先，删除

$index

周围的

{{}

。Angular已经知道您指的是范围

myForm.am1-$index.$invalid

。最后，您需要编写一个函数来评估这一点，而不是如何进行评估。所以

{'has class'：calculate（$index）}

你好，伊舍伍德，谢谢你的回复，我会测试的。