如何设置ng-model的默认值？

Question

我这里有一个用于发布简单数据的表单，我想为输入提供默认的字符串值，但是为什么没有出现，我尝试了ng-value，但它也无法正常工作。如何为ng-model设置默认字符串？

<form name="regForm" ng-submit="register.regUser(regData);">

<input type="text" ng-model="register.regData.branch_name" name="branch_name" value="This is a string">   
<button type="submit">Submit</button>

</form>

Answer 1

使用ng-init指令设置默认值，如下所示：

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="">
<form name="regForm" ng-submit="register.regUser(regData);">

<input type="text" ng-model="register.regData.branch_name" name="branch_name"  ng-init="register.regData.branch_name='This is a string'">   
<button type="submit">Submit</button>

</form>
</div>

Answer 2

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="">
<form name="regForm" ng-submit="register.regUser(regData);">

<input type="text" ng-model="register.regData.branch_name" name="branch_name"  ng-init="register.regData.branch_name='This is a string'">   
<button type="submit">Submit</button>

</form>
</div>