在Angular js Getters中传递参数

app.controller('MyController', function($scope) {
  $scope.items = [
    { name: 'Item 1', price: 10 },
    { name: 'Item 2', price: 20 },
    { name: 'Item 3', price: 30 }
  ];

  $scope.getTotalPrice = function(discount) {
    var total = 0;
    for (var i = 0; i < $scope.items.length; i++) {
      total += $scope.items[i].price;
    }
    return total - discount;
  };
});

app.controller('MyController', function($scope) {
  $scope.items = [
    { name: 'Item 1', price: 10 },
    { name: 'Item 2', price: 20 },
    { name: 'Item 3', price: 30 }
  ];

  $scope.discount = 5;

  $scope.getTotalPrice = function() {
    var total = 0;
    for (var i = 0; i < $scope.items.length; i++) {
      total += $scope.items[i].price;
    }
    return total - $scope.discount;
  };
});

app.controller('MyController', function($scope, DiscountService) {
  $scope.items = [
    { name: 'Item 1', price: 10 },
    { name: 'Item 2', price: 20 },
    { name: 'Item 3', price: 30 }
  ];

  $scope.getTotalPrice = function() {
    var total = 0;
    for (var i = 0; i < $scope.items.length; i++) {
      total += $scope.items[i].price;
    }
    return total - DiscountService.getDiscount();
  };
});

app.service('DiscountService', function() {
  this.getDiscount = function() {
    return 5;
  };
});