单选框input[radio]的使用

1. value是当radio被选中时赋给ngModel的值

<input type="radio" name="sex" value="1" ng-model="sex"/> 男
<input type="radio" name="sex" value="0" ng-model="sex"/> 女

2. 使用ngRepeat生成input[radio]项，注意：ngRepeat会生成新的scope作用域

<div ng-repeat="item in fee">
  <input type="radio"
         name="express"
         ng-value="item"
         ng-model="$parent.express"/>
  <span>{{item.name}}￥{{item.price}}</span>
</div>

controller中的代码：

$scope.fee = [{
  name: \'圆通快递\',
  code: \'yto\',
  price: 10
}, {
  name: \'顺丰快递\',
  code: \'sfexpress\',
  price: 20
}];
// 默认值设置
$scope.express = $scope.fee[1];