直接在网上扒一个页面，分分钟搞定! 先看一下效果
这是用微信开发工具打开的样式，直接上完整代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>忆游APP下载</title> </head> <body> <style type="text/css"> *{margin:0; padding:0;} img{max-width: 100%; height: auto;} .test{height: 600px; max-width: 600px; font-size: 40px;} </style> <script type="text/javascript"> var img = 'android.png'; function is_weixin() { var ua = navigator.userAgent.toLowerCase(); if(ua.indexOf('iphone') > -1){ img = 'iphone.png'; }else{ img = 'android.png'; } if (ua.match(/MicroMessenger/i) == "micromessenger") { return true; } else { return false; } } var isWeixin = is_weixin(); var winHeight = typeof window.innerHeight != 'undefined' ? window.innerHeight : document.documentElement.clientHeight; function loadHtml(){ var div = document.createElement('div'); div.id = 'weixin-tip'; div.innerHTML = '<p><img src="'+ img +'" alt="微信打开"/></p>'; document.body.appendChild(div); } function loadStyleText(cssText) { var style = document.createElement('style'); style.rel = 'stylesheet'; style.type = 'text/css'; try { style.appendChild(document.createTextNode(cssText)); } catch (e) { style.styleSheet.cssText = cssText; //ie9以下 } var head=document.getElementsByTagName("head")[0]; //head标签之间加上style样式 head.appendChild(style); } var cssText = "#weixin-tip{position: fixed; left:0; top:0; background: rgba(0,0,0,0.8); filter:alpha(opacity=80); 100%; height:100%; z-index: 100;} #weixin-tip p{text-align: center; margin-top: 10%; padding:0 5%;}"; if(isWeixin){ loadHtml(); loadStyleText(cssText); }else{ window.location.href="http://static.youliaoar.com/operation/yiyou/aryiyou1.1.0.apk"; } </script> </body> </html>