如何使用jQuery设置输入文本的值

我有一个输入文本是这样的：

<div class="editor-label">
    @Html.LabelFor(model => model.EmployeeId, "Employee Number")
</div>

<div class="editor-field textBoxEmployeeNumber">
    @Html.EditorFor(model => model.EmployeeId) 
    @Html.ValidationMessageFor(model => model.EmployeeId)
</div>

哪些产生以下HTML

<div class="editor-label">
  <label for="EmployeeId">Employee Number</label>
</div>

<div class="editor-field textBoxEmployeeNumber">
  <input class="text-box single-line" data-val="true" data-val-number="The field EmployeeId must be a number." data-val-required="The EmployeeId field is required." id="EmployeeId" name="EmployeeId" type="text" value="" />

  <span class="field-validation-valid" data-valmsg-for="EmployeeId" data-valmsg-replace="true"></span>
</div>

我想使用jquery设置此输入文​​本的值，所以我做到了：

<script type="text/javascript" language="javascript">
    $(function() {
        $('.textBoxEmployeeNumber').val("fgg");
    });
</script> 

但是，它不起作用...我的语法有什么错误？