5.2 为指定的属性设置值

到目前为止，你可能觉得像：

<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：

<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：

<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：

<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