angular 控制器之间值得传递

<div ng-controller="ParentCtrl"> <!--父级--> <div ng-controller="SelfCtrl"> <!--自己--> <a ng-click="click()">click me</a> <div ng-controller="ChildCtrl"></div> <!--子级--> </div> <div ng-controller="BroCtrl"></div> <!--平级--> </div>

app.controller('SelfCtrl', function($scope) {  $scope.click = function () {   $scope.$broadcast('to-child', 'child');   $scope.$emit('to-parent', 'parent');  } }); app.controller('ParentCtrl', function($scope) {  $scope.$on('to-parent', function(event,data) {   console.log('ParentCtrl', data); //父级能得到值  });  $scope.$on('to-child', function(event,data) {   console.log('ParentCtrl', data); //子级得不到值  }); }); app.controller('ChildCtrl', function($scope){  $scope.$on('to-child', function(event,data) {   console.log('ChildCtrl', data); //子级能得到值  });  $scope.$on('to-parent', function(event,data) {   console.log('ChildCtrl', data); //父级得不到值  }); }); app.controller('BroCtrl', function($scope){  $scope.$on('to-parent', function(event,data) {   console.log('BroCtrl', data); //平级得不到值  });  $scope.$on('to-child', function(event,data) {   console.log('BroCtrl', data); //平级得不到值  }); });