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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);
if
(isLinux)
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(
"您的操作系统是:"
+ detectOS());
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原文地址:http://www.cnblogs.com/qian3344/p/4244566.html