<iframe src='video.php?url=' name='video' frameborder='0' style='width:100%;height:150px;'></iframe> //父窗口给子窗口赋值 var d=window.frames["video"].window; d.onload=function(){ console.log(d.document.getElementById("videos")); //d.document.getElementById("videos").innerHTML="123"; }; //子窗口给父窗口传值 window.parent.document.getElementById("onoff").innerHTML = "修改后的主页面数据";