我去使用指令，使后面的功能重用。这是我最后的code：

I went with using a Directive to make the back functionality reusable. Here is my final code:

HTML

<a href back-button>back</a>

使用Javascript：

Javascript:

app.directive('backButton', function(){
    return {
      restrict: 'A',

      link: function(scope, element, attrs) {
        element.bind('click', goBack);

        function goBack() {
          history.back();
          scope.$apply();
        }
      }
    }
});