但是，我坚持一个非常基本的步骤，在popover范围上编写一个hide()方法，以便我可以使用ng-click = hide()轻松地关闭它。

这已经解决了现在正在覆盖其他问题;-)。

更新：抢救救援：http://plnkr.co/edit/QH3NQh?p=preview

.directive('uiPopover',['$compile','$http',function($compile,$http) {
return {
    restrict: 'A',scope: {
        hide: '&hide' // did not understand what is this
    },link: function postLink(scope,element,attr,ctrl) {
        console.warn('postLink',arguments,this);

        // scope is the anchor scope
        scope.name = "Hello"; // Using {{name}} is working
        scope.hide = function() { // Using ng-click="hide()" is not working :(
            console.log('in');
            element.popover('hide');
        }

        $http.get(attr.uiPopover).success(function(data) {
            element.popover({
                content: $compile(data)(scope),// popover content will get a new scope that I need to put hide() on.
                html: true
            });
        });


    }
}
}]);