这是使用mentio库的示例。一旦包含了mentio，它就会变成这样（使用内置配置）：

JS：

var m = angular.module('m', ['mentio']);

m.controller('ctrl', function ($scope) {
  $scope.items = [
      {label: 'asdf'},
      {label: 'bksdkf'},
      {label: 'ccc'}
  ];
});

HTML：

<div ng-app="m" ng-controller="ctrl">
  <textarea mentio
    mentio-typed-text="typedTerm"
    mentio-items="items | filter:label:typedTerm"
    ng-model="theTextArea2"
    autocomplete="off"></textarea>
</div>

http://jsfiddle.net/77906ujr/