你是指刷新?
<iframe id=ii src="xxx.html"></iframe>
<input type="button" value="" onclick="ii.window.location.href=ii.window.location.href">
<iframe id=ii src="xxx.html"></iframe>
<input type="button" value="" onclick="ii.window.location.href=ii.window.location.href">
document.getElementById("iframeID1").location.href="./user.do?oper=login";
<iframe name="ii" src="1.html"> </iframe>
子窗体中按name刷新
onclick="window.parent.frames['ii'].location.href=window.parent.frames['ii'].location.href"
window.parent.iframeName.src = window.parent.iframeName.src;