js 能实现监听F5页面刷新子iframe 而父页面不刷新的方法

document.onkeypress = function(e){  if(e.keyCode == 116){    e.preventDefault(); //组织默认刷新    var iframeSrc = iframe.src;    iframe.src = iframeSrc;  }}

var iframeSrc = parent.iframe.src;document.onkeypress = function(e){  e.preventDefault();  parent.frame.src = iframeSrc;}