angular同一个页面多个controller值传递

                  //父级  
    
                //自己  
        click me  
        
     //子级  
    
  
    
           //平级  
 

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

用$broadcast赋的值，只能子级能得到值，父级得不到，用$emit赋的值，只能父级得到值，子级得不到。平级都得不到值