Angular自定义依赖注入(factory方法)

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<!DOCTYPE html>
<html ng-app="test">
<head>
<meta charset="UTF-8">
<title>自定义依赖注入(factory方法)</title>
<script src="js/angular.js"></script>
</head>
<body>
<div ng-controller="con">{{a}}</div>
<script>
angular.module('test',[]).controller('con',function($scope,num){
$scope.a=10;
alert(num.fn(12,23));
alert(num.fn(1,2));
}).factory('num',function(){
alert('我执行了');
return {
a:12,
fn:function(n1,n2){
return n1+n2;
}
}
});   
//方法一factory()
//方法二provide()
</script>
</body>
</html>
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