比较全的使用JavaScript获取当前网页运行环境的明细，比如操作系统类型，设备类型
<html> <script> var OS = { "WINDOWS": "win", "MACINTOSH": "mac", "LINUX": "linux", "IOS": "iOS", "ANDROID": "Android", "BLACKBERRY": "bb", "WINDOWS_PHONE": "winphone" }; var result = getOS(); alert(JSON.stringify(result)); function getOS() { var userAgent = navigator.userAgent; var platform, result; function getDesktopOS(){ var pf = navigator.platform; if (pf.indexOf("Win") != -1 ) { // 说明当前是Windows操作系统 var rVersion = /Windows NT (d+).(d)/i; var uaResult = userAgent.match(rVersion); var sVersionStr = ""; if (uaResult[1] == "6") { if (uaResult[2] == 1) { sVersionStr = "7"; // 说明当前运行在Windows 7 中 } else if (uaResult[2] > 1) { sVersionStr = "8"; // 说明当前运行在Windows 8 中 } } else { sVersionStr = uaResult[1]; } return {"name": OS.WINDOWS, "versionStr": sVersionStr}; } else if (pf.indexOf("Mac") != -1) { return {"name": OS.MACINTOSH, "versionStr": ""}; // Macintosh操作系统 } else if (pf.indexOf("Linux") != -1) { return {"name": OS.LINUX, "versionStr": ""}; // 说明当前运行在Linux操作系统 } return null; } platform = /Windows Phone (?:OS )?([d.]*)/; // windows phone的正则表达式 result = userAgent.match(platform); if (result) { return ({"name": OS.WINDOWS_PHONE, "versionStr": result[1]}); } // BlackBerry 10 if (userAgent.indexOf("(BB10;") > 0) { platform = /sVersion/([d.]+)s/; // BlackBerry的regular expression result = userAgent.match(platform); if (result) { return {"name": OS.BLACKBERRY, "versionStr": result[1]}; } else { return {"name": OS.BLACKBERRY, "versionStr": '10'}; } } // iOS, Android, BlackBerry 6.0+: platform = /(([a-zA-Z ]+);s(?:[U]?[;]?)([D]+)((?:[d._]*))(?:.*[)][^d]*)([d.]*)s/; result = userAgent.match(platform); if (result) { var appleDevices = /iPhone|iPad|iPod/; var bbDevices = /PlayBook|BlackBerry/; if (result[0].match(appleDevices)) { result[3] = result[3].replace(/_/g, "."); return ({"name": OS.IOS, "versionStr": result[3]}); // iOS操作系统 } else if (result[2].match(/Android/)) { result[2] = result[2].replace(/s/g, ""); return ({"name": OS.ANDROID, "versionStr": result[3]}); // Android操作系统 } else if (result[0].match(bbDevices)) { return ({"name": OS.BLACKBERRY, "versionStr": result[4]}); // Blackberry } } //Android平台上的Firefox浏览器 platform = /((Android)[s]?([d][.d]*)?;.*Firefox/[d][.d]*/; result = userAgent.match(platform); if (result) { return ({"name": OS.ANDROID, "versionStr": result.length == 3 ? result[2] : ""}); } // Desktop return getDesktopOS(); } </script> </html>
