%s 占位符
%s 占位符,fmt.Fprintf 会对占位符进行替换,如下
<form action="%s" method="post">
<p><input type="text" name="title" value="%s"></p>
<p><textarea name="body" cols="30" rows="10"></textarea></p>
<p><button type="submit">提交</button></p>
</form>
fmt.Fprintf(w, html, storeURL, "test")