1.通过window.open函数
<div onclick="window.open(\'www.baidu.com\')">在新窗口跳转至百度</div>
<div onclick="window.open(\'www.baidu.com\',\'_self\')">在当前窗口跳转至百度</div>
2.通过window.location.href函数
<div onclick="window.location.href= \'index.php?mtype=help\';return false">在当前窗口跳转至百度</div>