<ul class="list-group" ng-repeat="item in vm.appData" ng-init="outerIndex = $index">

                    <h3>{{item.name}}<span class="outer-index">outerIndex:{{outerIndex}}</span></h3>

                    <h4>{{item.author}}</h4>

                    <li class="list-group-item">

                        <ul class="list-group">

                            <li class="list-group-item" ng-repeat="v in item.books track by $index" ng-init="innerIndex = $index">

                                {{v.name}} <span class="inner-index">innerIndex:{{innerIndex}}</span><button class="btn btn-danger" ng-click="vm.removeItem(outerIndex, innerIndex)">删除</button>

                            </li>

                            <li class="list-group-item">

                                <form class="form-inline">

                                    <input class="form-control" ng-model="vm.tempItem[$index]" type="text">

                                    <button class="btn btn-primary" ng-click="vm.addItem(outerIndex)">添加一项</button>

                                </form>

                            </li>

                        </ul>

                    </li>

                    <hr ng-show="!$last">

                </ul>