# 5.2 为指定的属性设置值

到目前为止，你可能觉得像：

```markup
<input type="submit" value="Subscribe!" th:attr="value=#{subscribe.submit}"/>
```

这样的标记片段，相当丑陋。在一个属性值的内部指定赋值操作可以是非常实用的，但是如果你不得不一直这么做的话，这并不是创建模版的最优雅的方式。

Thymeleaf和你意见一致，这也是在模版里几乎不使用`th:attr`的原因。通常，你会使用其它的`th:*`属性，为特定的标签属性设置值，而不是像`th:attr`一样为任何属性设置值。

例如，为了设置`value`属性，使用`th:value`：

```markup
<input type="submit" value="Subscribe!" th:value="#{subscribe.submit}"/>
```

这看起来好多了！让我们尝试对`form`标签里的`action`属性也做相同的操作：

```markup
<form action="subscribe.html" th:action="@{/subscribe}">
```

你还记得那些我们之前放进`home.html`的`th:href`吗？它们完全是同类属性：

```markup
<li><a href="product/list.html" th:href="@{/product/list}">Product List</a></li>
```

有类似的相当多的属性，它们中的每一个都对应了一个特定的HTML5属性：

|                       |                     |                   |
| --------------------- | ------------------- | ----------------- |
| th:abbr               | th:accept           | th:accept-charset |
| th:accesskey          | th:action           | th:align          |
| th:alt                | th:archive          | th:audio          |
| th:autocomplete       | th:axis             | th:background     |
| th:bgcolor            | th:border           | th:cellpadding    |
| th:cellspacing        | th:challenge        | th:charset        |
| th:cite               | th:class            | th:classid        |
| th:codebase           | th:codetype         | th:cols           |
| th:colspan            | th:compact          | th:content        |
| th:contenteditable    | th:contextmenu      | th:data           |
| th:datetime           | th:dir              | th:draggable      |
| th:dropzone           | th:enctype          | th:for            |
| th:form               | th:formaction       | th:formenctype    |
| th:formmethod         | th:formtarget       | th:fragment       |
| th:frame              | th:frameborder      | th:headers        |
| th:height             | th:high             | th:href           |
| th:hreflang           | th:hspace           | th:http-equiv     |
| th:icon               | th:id               | th:inline         |
| th:keytype            | th:kind             | th:label          |
| th:lang               | th:list             | th:longdesc       |
| th:low                | th:manifest         | th:marginheight   |
| th:marginwidth        | th:max              | th:maxlength      |
| th:media              | th:method           | th:min            |
| th:name               | th:onabort          | th:onafterprint   |
| th:onbeforeprint      | th:onbeforeunload   | th:onblur         |
| th:oncanplay          | th:oncanplaythrough | th:onchange       |
| th:onclick            | th:oncontextmenu    | th:ondblclick     |
| th:ondrag             | th:ondragend        | th:ondragenter    |
| th:ondragleave        | th:ondragover       | th:ondragstart    |
| th:ondrop             | th:ondurationchange | th:onemptied      |
| th:onended            | th:onerror          | th:onfocus        |
| th:onformchange       | th:onforminput      | th:onhashchange   |
| th:oninput            | th:oninvalid        | th:onkeydown      |
| th:onkeypress         | th:onkeyup          | th:onload         |
| th:onloadeddata       | th:onloadedmetadata | th:onloadstart    |
| th:onmessage          | th:onmousedown      | th:onmousemove    |
| th:onmouseout         | th:onmouseover      | th:onmouseup      |
| th:onmousewheel       | th:onoffline        | th:ononline       |
| th:onpause            | th:onplay           | th:onplaying      |
| th:onpopstate         | th:onprogress       | th:onratechange   |
| th:onreadystatechange | th:onredo           | th:onreset        |
| th:onresize           | th:onscroll         | th:onseeked       |
| th:onseeking          | th:onselect         | th:onshow         |
| th:onstalled          | th:onstorage        | th:onsubmit       |
| th:onsuspend          | th:ontimeupdate     | th:onundo         |
| th:onunload           | th:onvolumechange   | th:onwaiting      |
| th:optimum            | th:pattern          | th:placeholder    |
| th:poster             | th:preload          | th:radiogroup     |
| th:rel                | th:rev              | th:rows           |
| th:rowspan            | th:rules            | th:sandbox        |
| th:scheme             | th:scope            | th:scrolling      |
| th:size               | th:sizes            | th:span           |
| th:spellcheck         | th:src              | th:srclang        |
| th:standby            | th:start            | th:step           |
| th:style              | th:summary          | th:tabindex       |
| th:target             | th:title            | th:type           |
| th:usemap             | th:value            | th:valuetype      |
| th:vspace             | th:width            | th:wrap           |
| th:xmlbase            | th:xmllang          | th:xmlspace       |
