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AngularJS ng-selected 指令


示例

selected 属性设置为 true

点击这里选择宝马作为你最喜欢的汽车
<input type="checkbox" ng-model="mySel">

<p>我最喜欢的汽车:</p>

<select>
<option>沃尔沃</option>
<option ng-selected="mySel">宝马</option>
<option>福特</option>
</select>
自己试试 »

定义和用法

The ng-selected 指令设置 <select> 列表中 <option> 元素的 selected 属性。

如果 ng-selected 属性内的表达式返回 true,则该选项将被选中。

需要 ng-selected 指令才能在 truefalse 之间切换值。在 HTML 中,你无法将 selected 属性设置为 false(无论其值如何,selected 属性的存在都会使元素被选中)。


语法

<option ng-selected="表达式"></option>

受 <option> 元素支持。


参数值

描述
表达式 如果返回 true,则将设置元素的 selected 属性的表达式。

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