Question

以下是plunker链接：http://plnkr.co/edit/LqeGqg1HdOIkiMQrKn72?p=preview

HTML：

<!DOCTYPE html>
<html ng-app="plunker">

  <head>
    <meta charset="utf-8" />
    <title>AngularJS Plunker</title>
    <script>document.write('<base href="' + document.location + '" />');</script>
    <link rel="stylesheet" href="style.css" />
    <script data-require="angular.js@1.0.x" src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.7/angular.js" data-semver="1.0.7"></script>
    <script src="app.js"></script>
  </head>

  <body ng-controller="MainCtrl">
    <select ng-model="animalSelection" 
            ng-options="a.name group by a.subcat for a in animals">
    </select>
  </body>

</html>

JS：

var app = angular.module('plunker', []);

app.controller('MainCtrl', function($scope) {
  var animals = [
      {name: "great dane", subcat: "Dogs"},
      {name: "lab",        subcat: "Dogs"},
      {name: "tabby",      subcat: "Cats"},
      {name: "black",      subcat: "Cats"}
  ];
  // and put it in the $scope
  $scope.animals = animals;
});

我想根据示例

选择子猫，即Dogs Cats

如何制作＆＃39; optgrp＆＃39;下拉选择能？

0 个答案: