Html帮助类

used to render (modify and output) HTML form elements

用来渲染HTML表单元素（修改和输出）

Html.ActionLink

输出: <a href=”..”…>..</a>

Html.BeginForm

输出: <form …>

Html.CheckBox

输出: <input type="checkbox" …/>

Html.DropDownList

输出: <select ..> .. </select>

Html.EndForm

输出: </form>

Html.Hidden

输出: <input type="hidden" ... />

Html.ListBox

输出: <select multiple …>…</select>

Html.Password

输出: <input type="password" … />

Html.RadioButton

输出: <input type="radio" .. />

Html.TextArea

输出: <textarea…>…</textarea>

Html.TextBox

输出: <input type="text" … />

Html.ValidationSummary

Returns an unordered list (ul element) of validation messages that are in the ModelStateDictionary object.

返回一个在ModelStateDictionary对象中的无序列表（ul元素）的验证消息。

Html.ValidationMessage

To display an error for a particular field in the ModelState dictionary

要显示一个错误的ModelState字典中的特定字段

Html.RouteLink

To generate a URL to a specific route

要生成一个URL到一个特定的路由