基本选择 Ng-Model Angularjs [重复]

Question

我想用一个选择做一个非常简单的ng-model 并将数据保存到ticket.category，但我在<p> 中没有得到任何输出

选项显示在选择中，但所选选项未显示在段落中

我做错了什么？

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.5/angular.min.js"></script>
<select id="category-select" name="category">
  <option ng-repeat="category in categories" 
          value="{{category.TICKET_CATEGORY_DESCRIPTION}}" 
          ng-model="ticket.category" required>
    {{category.TICKET_CATEGORY_DESCRIPTION}}
  </option>
</select>
<p>Hi {{ticket.category}}</p>

Answer 1

你应该放 ng-model 选择元素

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.5/angular.min.js"></script>
<select id="category-select" name="category" ng-model="category">
  <option ng-repeat="category in categories" value="{{category.TICKET_CATEGORY_DESCRIPTION}}" required ng-selected="$index=0">
    {{category.TICKET_CATEGORY_DESCRIPTION}}
  </option>
</select>
<p>Hi {{ticket.category}}</p>