<form action="http://www.baidu.com/s">
<input name="wd" />
<input type="submit" value="百度一下" />
</form>

<form action="http://s.taobao.com/search">
<input name="q" />
<input type="submit" value="淘宝" />
</form>

<form action="http://music.163.com/">
<input name="discover" />
<input type="submit" value="网易云音乐" />
</form>

<form action="http://search.jd.com/Search">
<input name="keyword" />
<input type="submit" value="京东" />
</form>