点击按钮打开另外一个页面

<input type=button value="按钮" onclick="window.open('http://www.mzwu.com/');">

or

<input type=button value="按钮" onclick="window.location.reload();"> //刷新本窗口

or

<input type=button value="按钮" onclick="window.location='http://www.mzwu.com/';">

or

<input type=button value="按钮" onclick="window.location.replace('http://www.mzwu.com/');">
//此法打开新页面后"后退"无效！

or

<input type=button value="按钮" onclick="document.location.href='http://www.mzwu.com/';">

or

<input type=button value="按钮" onclick="document.URL='http://www.mzwu.com/';">