a标签的超链接提交form表单

<form action="/home/search" method="get" >
</a>
</div>
</form>

有以下几种写法：

1.

<a class="searchPic h-submitBtn png" ></a>

2.

<a href="javascript:document:search_form.submit();">提交</a>

3.

<a class="searchPic h-submitBtn png" ></a>