<!DOCTYPE HTML>
<html ng-app="myApp">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
<script src="angular.min.js"></script>
<script>
var m1 = angular.module('myApp',[]);
m1.controller('Aaa',['$scope',function($scope){
$scope.count = 0;
$scope.$on('myEvent',function(event){//$on('myEvent')绑定myEvent事件，
$scope.count++;
console.log( event.targetScope == event.currentScope );
console.log(event.name);
event.stopPropagation();
});
}]);
</script>
</head>
<body>
<div ng-controller="Aaa">
{{count}}
<div ng-controller="Aaa" ng-click="$emit('myEvent')"> //向上广播myEvent事件，则上面的count会加1，$broadcast('myEvent')是向下广播事件，下面的count会加1，ng-click="count=count+1"只有这个count加1，上下的count不加1.
{{count}}
<div ng-controller="Aaa">
{{count}}
</div>
</div>
</div>
</body>
</html>
