如何绑定到复选框值列表与AngularJS？

用一个简单的数组作为输入数据

HTML可能如下所示：

<label ng-repeat="fruitName in fruits">
  <input
    type="checkbox"
    name="selectedFruits[]"
    value="{{fruitName}}"
    ng-checked="selection.indexOf(fruitName) > -1"
    ng-click="toggleSelection(fruitName)"
  > {{fruitName}}
</label>

并且适当的控制器代码将是：

app.controller('SimpleArrayCtrl',['$scope',function SimpleArrayCtrl($scope) {

  // Fruits
  $scope.fruits = ['apple','orange','pear','naartjie'];

  // Selected fruits
  $scope.selection = ['apple','pear'];

  // Toggle selection for a given fruit by name
  $scope.toggleSelection = function toggleSelection(fruitName) {
    var idx = $scope.selection.indexOf(fruitName);

    // Is currently selected
    if (idx > -1) {
      $scope.selection.splice(idx,1);
    }

    // Is newly selected
    else {
      $scope.selection.push(fruitName);
    }
  };
}]);

优点：简单的数据结构和按名称切换容易处理

缺点：添加/删除是麻烦的，因为必须管理两个列表(输入和选择)

用对象数组作为输入数据

HTML可能如下所示：

<label ng-repeat="fruit in fruits">
  <!--
    - Use `value="{{fruit.name}}"` to give the input a real value,in case the form gets submitted
      traditionally

    - Use `ng-checked="fruit.selected"` to have the checkbox checked based on some angular expression
      (no two-way-data-binding)

    - Use `ng-model="fruit.selected"` to utilize two-way-data-binding. Note that `.selected`
      is arbitrary. The property name could be anything and will be created on the object if not present.
  -->
  <input
    type="checkbox"
    name="selectedFruits[]"
    value="{{fruit.name}}"
    ng-model="fruit.selected"
  > {{fruit.name}}
</label>

并且适当的控制器代码将是：

app.controller('ObjectArrayCtrl','filterFilter',function ObjectArrayCtrl($scope,filterFilter) {

  // Fruits
  $scope.fruits = [
    { name: 'apple',selected: true },{ name: 'orange',selected: false },{ name: 'pear',{ name: 'naartjie',selected: false }
  ];

  // Selected fruits
  $scope.selection = [];

  // Helper method to get selected fruits
  $scope.selectedFruits = function selectedFruits() {
    return filterFilter($scope.fruits,{ selected: true });
  };

  // Watch fruits for changes
  $scope.$watch('fruits|filter:{selected:true}',function (nv) {
    $scope.selection = nv.map(function (fruit) {
      return fruit.name;
    });
  },true);
}]);

优点：添加/删除是很容易

缺点：有些更复杂的数据结构和按名称切换是麻烦的或需要帮助方法

演示：http://jsbin.com/ImAqUC/1/