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;
}