为什么我的 Plunker Angular JS 不工作?

Why my Plunker Angular JS is not working?

谁能告诉我为什么这个 plunker 不起作用? Sample AngularJS on Plunker

HTML :

<!DOCTYPE html>
<html>

  <head>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.6/angular.min.js"></script>
    <script src="script.js"></script>
  </head>

  <body ng-controller="MyCtrl">
    <p>{{userData}}</p>
  </body>

</html>

JavaScript:

var app = angular.module('myApp', []);
app.controller('MyCtrl', function ($scope) {
  $scope.userData = {
    name: 'Xavier',
    age: 25
  }
});

你忘了放 ng-app。

<html ng-app="myApp">