Javascript Angularjs-重复并单击

我试着做一个angularjs项目。我有以下代码：

HTML:

列表按预期生成，但当我单击其中一个元素时，会收到以下错误消息：

Error: fnPtr is not a function Parser.prototype.functionCall/<@http://localhost:8000/app2/lib/angular/angular.js:10169 ngEventDirectives[directiveName]</<.compile/</</<@http://localhost:8000/app2/lib/angular/angular.js:17823 Scope.prototype.$eval@http://localhost:8000/app2/lib/angular/angular.js:11906 Scope.prototype.$apply@http://localhost:8000/app2/lib/angular/angular.js:12006 ngEventDirectives[directiveName]</<.compile/</<@http://localhost:8000/app2/lib/angular/angular.js:17822 createEventHandler/eventHandler/<@http://localhost:8000/app2/lib/angular/angular.js:2610 forEach@http://localhost:8000/app2/lib/angular/angular.js:309 createEventHandler/eventHandler@http://localhost:8000/app2/lib/angular/angular.js:2609

---

错误：fnPtr不是函数解析器。prototype.functionCall/您应该为函数
$scope.answer使用其他名称

    $scope.answer1 = function(ans) {
        console.log('clicked' + ans);
    }

HTML:



{{answer}}（{{$index}}）


OMG。我是如此愚蠢和盲目：D.有时你需要另一双眼睛。@Leftjustized，是的，伙计，我们有时都会犯一些愚蠢的错误，所以给你额外的（一双眼睛）*看，享受吧
Error: fnPtr is not a function Parser.prototype.functionCall/<@http://localhost:8000/app2/lib/angular/angular.js:10169 ngEventDirectives[directiveName]</<.compile/</</<@http://localhost:8000/app2/lib/angular/angular.js:17823 Scope.prototype.$eval@http://localhost:8000/app2/lib/angular/angular.js:11906 Scope.prototype.$apply@http://localhost:8000/app2/lib/angular/angular.js:12006 ngEventDirectives[directiveName]</<.compile/</<@http://localhost:8000/app2/lib/angular/angular.js:17822 createEventHandler/eventHandler/<@http://localhost:8000/app2/lib/angular/angular.js:2610 forEach@http://localhost:8000/app2/lib/angular/angular.js:309 createEventHandler/eventHandler@http://localhost:8000/app2/lib/angular/angular.js:2609

    $scope.answer1 = function(ans) {
        console.log('clicked' + ans);
    }

<ul>
    <li ng-repeat="answer in question.answers">
        <button type="button" ng-click="answer1($index)">{{answer}} ({{$index}})</button>
    </li>
</ul>