1. form中定义name <form name = "sbform" action="sb_add.php" method="post"> 用Reset清空 <input type="button" value="清空" onclick="sbform.reset()" /> 2.重加载 <input type="button" value="清空" windows.location.href=‘index.php‘ />
原文：http://www.cnblogs.com/tmdsleep/p/4601513.html