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<html><head><title>判斷作業系統</title><script type="text/javascript">function detectOS() { var sUserAgent = navigator.userAgent; var isWin = (navigator.platform == "Win32") || (navigator.platform == "Windows"); var isMac = (navigator.platform == "Mac68K") || (navigator.platform == "MacPPC") || (navigator.platform == "Macintosh") || (navigator.platform == "MacIntel"); if (isMac) return "Mac"; var isUnix = (navigator.platform == "X11") && !isWin && !isMac; if (isUnix) return "Unix"; var isLinux = (String(navigator.platform).indexOf("Linux") > -1); var bIsAndroid = sUserAgent.toLowerCase().match(/android/i) == "android";if (isLinux) {if(bIsAndroid) return "Android";else return "Linux"; }if (isWin) { var isWin2K = sUserAgent.indexOf("Windows NT 5.0") > -1 || sUserAgent.indexOf("Windows 2000") > -1; if (isWin2K) return "Win2000"; var isWinXP = sUserAgent.indexOf("Windows NT 5.1") > -1 || sUserAgent.indexOf("Windows XP") > -1; if (isWinXP) return "WinXP"; var isWin2003 = sUserAgent.indexOf("Windows NT 5.2") > -1 || sUserAgent.indexOf("Windows 2003") > -1; if (isWin2003) return "Win2003"; var isWinVista= sUserAgent.indexOf("Windows NT 6.0") > -1 || sUserAgent.indexOf("Windows Vista") > -1; if (isWinVista) return "WinVista"; var isWin7 = sUserAgent.indexOf("Windows NT 6.1") > -1 || sUserAgent.indexOf("Windows 7") > -1; if (isWin7) return "Win7"; } return "other"; } document.writeln("您的作業系統是:" + detectOS()); alert(detectOS());</script></head><body></body></html>
js如何判斷不同的作業系統