https://blog.csdn.net/qq_38366657/article/details/81538145

 

 

// 父页面的js $(window).scroll(function () {                var scrollTop = $(window).scrollTop()                console.log(scrollTop, '1111');                if (scrollTop > 600) {                    //  $("#TopHeader").attr('data-hh', 'ok')                    // 父向子发送消息                    var message = scrollTop;// 'Hello!  The time is: ' + (new Date().getTime()) + "父的滚动" + scrollTop;                    // console.log('blog.local:  sending message:  ' + message);                    //send the message and target URI                    iframe.postMessage(message, domain);                }            });             //弹出一个新窗口            var domain = location.origin;            var iframe = document.getElementById('TopHeader').contentWindow;            //响应事件            window.addEventListener('message', function (event) {                //  if(event.origin !== 'http://davidwalsh.name') return;                console.log('index22222222222:  ' + event.data);                // event.source.postMessage('holla back youngin!',event.origin);            }, false);// 子页面的js//响应事件    window.addEventListener('message', function (event) {        //if(event.origin !== 'http://localhost:11893') return;        console.log('message lister6666666666:  ' + event.data, event);        event.source.postMessage('holla back youngin!6666666666', event.origin);        parent.$("#TopHeader").css("height", event.data+'px');    }, false);