//用逗号分开
<input type="text" ng-list="" ng-model="a"><br>
{{a}}<br>
//输入一个push一个
<input type="text" ng-list=" " ng-model="b"><br>
{{b}}<br>
//用逗号分开
<input type="text" ng-list="" ng-model="a"><br>
{{a}}<br>
//输入一个push一个
<input type="text" ng-list=" " ng-model="b"><br>
{{b}}<br>