var app = angular.module('myApp', ['ng']);

//创建一个自定义服务
app.factory('$Debug', function () {
return {
debugSwitch:true,
log: function (msg) {
if(this.debugSwitch)
{
console.log(msg);
}
}
}
});

//推断式(猜测)
/*app.controller('myCtrl', function ($scope,$Debug) {
$Debug.log('Hello DI');
})*/

//行内式依赖注入
app.controller('myCtrl',['$scope','$Debug',
function ($scope,$Debug) {
$Debug.log('Hello Dependency Injection');
}]);

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