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- <!DOCTYPE html><html><head><meta charset=utf-8><meta http-equiv=X-UA-Compatible content="IE=edge"><meta name=viewport content="width=device-width,initial-scale=1,user-scalable=no"><link rel="shortcut icon" href=/favicon.ico><title>神英优选</title><link rel=stylesheet href=https://g.alicdn.com/de/prismplayer/2.13.2/skins/default/aliplayer-min.css><link href=/view_admin/css/chunk-vendors.704bc1c5.css rel=stylesheet><link href=/view_admin/css/app.5380617e.css rel=stylesheet></head><body><noscript><strong>请开启 JavaScript 功能来使用神英优选。</strong></noscript><iframe id=IEIframe style="display: none;" width=100% height=100% src=/static_admin/ie.html frameborder=0></iframe><div id=app></div><script src=https://g.alicdn.com/de/prismplayer/2.13.2/aliplayer-min.js></script><script src=/view_admin/js/chunk-vendors.77fbc919.js></script><script src=/view_admin/js/app.09453686.js></script></body><script>// 首屏加载速度
- window.onload= function() {
- console.log(new Date().getTime() - performance.timing.navigationStart,'首屏加载速度')
- }
- function IEVersion() {
- var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串
- var isIE =
- userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1; //判断是否IE<11浏览器
- if (isIE) {
- return true;
- } else {
- return false; //不是ie浏览器
- }
- }
- /* 如果是ie浏览器 */
- if (IEVersion()) {
- document.querySelector('#IEIframe').style.display = 'block'
- document.querySelector('#app').style.display = 'none'
- }
- // dataset 方法兼容 IE 浏览器。ie10及以下不支持dataset
- if (window.HTMLElement) {
- if (Object.getOwnPropertyNames(HTMLElement.prototype).indexOf('dataset') === -1) {
- Object.defineProperty(HTMLElement.prototype, 'dataset', {
- get: function () {
- var attributes = this.attributes // 获取节点的所有属性
- var name = []
- var value = [] // 定义两个数组保存属性名和属性值
- var obj = {} // 定义一个空对象
- for (var i = 0; i < attributes.length; i++) { // 遍历节点的所有属性
- if (attributes[i].nodeName.slice(0, 5) === 'data-') { // 如果属性名的前面5个字符符合"data-"
- // 取出属性名的"data-"的后面的字符串放入name数组中
- name.push(attributes[i].nodeName.slice(5));
- // 取出对应的属性值放入value数组中
- value.push(attributes[i].nodeValue);
- }
- }
- for (var j = 0; j < name.length; j++) { // 遍历name和value数组
- obj[name[j]] = value[j]; // 将属性名和属性值保存到obj中
- }
- return obj // 返回对象
- }
- })
- }
- }</script></html>
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