Bagaimana untuk mendapatkan jenis sistem pengendalian asli dalam petua javascript_javascript

废话不多说了，下面通过一段代码示例介绍一下，希望能够给需要的朋友带来或多或少的帮助。

示例代码：

function GetOSInfo()
{ 
 var _pf=navigator.platform; 
 var appVer=navigator.userAgent; 
 if(_pf=="Win32" || _pf == "Windows") 
 { 
  if(appVer.indexOf("WOW64")>-1)
  { 
   _bit = "64位"; 
  }
  else
  { 
   _bit = "32位"; 
  } 
  if(appVer.indexOf("Windows NT 6.0") > -1 || appVer.indexOf("Windows Vista") > -1) 
  { 
   if(_bit=='64位' || appVer.indexOf("Windows Vista") > -1)
   { 
    return 'Windows_vista '+_bit; 
   }
   else
   { 
    return "Unknow1"; 
   } 
  }
  else if(appVer.indexOf("Windows NT 6.1") > -1 || appVer.indexOf("Windows 7") > -1) 
  { 
   if(_bit=='32位' || appVer.indexOf("Windows 7") > -1)
   { 
    return 'Windows_7 '+_bit; 
   }
   else
   { 
    return "Unknow"; 
   } 
  }
  else
  { 
   try
   { 
    var _winName = Array('2000','XP','2003'); 
    var _ntNum = appVer.match(/Windows NT 5.\d/i).toString(); 
    return 'Windows_' + _winName[_ntNum.replace(/Windows NT 5.(\d)/i,"$1")]+" "+_bit; 
   }
   catch(e)
   {
    return 'Windows';
   } 
  } 
 }
 else if(_pf == "Mac68K" || _pf == "MacPPC" || _pf == "Macintosh") 
 { 
  return "Mac"; 
 }
 else if(_pf == "X11") 
 { 
  return "Unix"; 
 }
 else if(String(_pf).indexOf("Linux") > -1) 
 { 
  return "Linux"; 
 }
 else
 { 
  return "Unknow"; 
 } 
}

以上代码很简单的实现了javascript获取本机操作系统类型的方法，一下在通过一段示例代码介绍javascript获取操作系统版本信息

javascript获取操作系统版本信息

示例代码：

var sUserAgent = navigator.userAgent;
var fAppVersion = parseFloat(navigator.appVersion);
//比较浏览器版本大小
function compareVersions(sVersion1,sVersion2){
  var aVersion1 = sVersion1.split(".");
  var aVersion2 = sVersion2.split(".");
  if(aVersion1.length>aVersion2.length){
    for(var i=0;i<aVersion1.length;i++)
      aVersion2.push("0");
  }else if(aVersion1.length<aVersion2.length){
    for(var i=0;i<aVersion2.length;i++)
      aVersion1.push("0");
  }
  for(var i=0;i<aVersion1.length;i++){
    if(aVersion1[i]<aVersion2[i])
      return -1;
    else if(aVersion1[i]>aVersion2[i])
      return 1;
  }
  return 0;
}
//检测是否Opera浏览器
var isOpera = sUserAgent.indexOf("Opera")>-1;
var isMinOpera4 = isMinOpera5 = isMinOpera6 = isMinOpera7 = isMinOpera7_5 = false;
if(isOpera){
  var fOperaVersion;
  if(navigator.appName == "Opera"){
    fOperaVersion = fAppVersion;
  } else {
    var reOperaVersion = new RegExp("Opera (http://www.cnblogs.com/eoiioe/admin/file://d+///d+)");
    reOperaVersion.test(sUserAgent);
    fOperaVersion = parseFloat(RegExp["$1"]);
  }
  isMinOpera4 = fOperaVersion >= 4;
  isMinOpera5 = fOperaVersion >= 5;
  isMinOpera6 = fOperaVersion >= 6;
  isMinOpera7 = fOperaVersion >= 7;
  isMinOpera7_5 = fOperaVersion >= 7.5;
}
//检测是否Safari
var isKHTML = sUserAgent.indexOf("KHTML")>-1
        || sUserAgent.indexOf("Konqueror")>-1
        || sUserAgent.indexOf("AppleWebKit")>-1;
var isMinSafari1 = isMinSafari1_2 = false;
var isMinKonq2_2 = isMinKonq3 = isMinKonq3_1 = isMinKonq3_2 = false;
if(isKHTML){
  isSafari = sUserAgent.indexOf("AppleWebKit")>-1;
  isKonq = sUserAgent.indexOf("Konqueror")>-1;
  if(isSafari){
    var reAppleWebKit = new RegExp("AppleWebKit\\/(http://www.cnblogs.com/eoiioe/admin/file://d+(/&#63;:\\.\\d*)&#63;)");
    reAppleWebKit.test(sUserAgent);
    var fAppleWebKitVersion = parseFloat(RegExp["$1"]);
    isMinSafari1 = fAppleWebKitVersion >= 85;
    isMinSafari1_2 = fAppleWebKitVersion >= 124;
  } else if (isKonq) {
    var reKonq = new RegExp("Konqueror\\/(http://www.cnblogs.com/eoiioe/admin/file://d+(/&#63;:\\.\\d+(&#63;:\\.\\d)&#63;)&#63;)");
    reKonq.test(sUserAgent);
    isMinKonq2_2 = compareVersions(RegExp["$1"],"2.2") >= 0;
    isMinKonq3 = compareVersions(RegExp["$1"],"3.0") >= 0;
    isMinKonq3_1 = compareVersions(RegExp["$1"],"3.1") >= 0;
    isMinKonq3_2 = compareVersions(RegExp["$1"],"3.2") >= 0;
  }
}
//检测IE
var isIE = sUserAgent.indexOf("compatible") > -1
      &&sUserAgent.indexOf("MSIE") > -1
      &&!isOpera;
var isMinIE4 = isMinIE5 = isMinIE5_5 = isMinIE6 = isMinIE7 = false;
if(isIE){
  var reIE = new RegExp("MSIE (http://www.cnblogs.com/eoiioe/admin/file://d+///d+);");
  reIE.test(sUserAgent);
  var fIEVersion = parseFloat(RegExp["$1"]);
  isMinIE4 = fIEVersion >=4;
  isMinIE5 = fIEVersion >=5;
  isMinIE5_5 = fIEVersion >=5.5;
  isMinIE6 = fIEVersion >=6;
  isMinIE7 = fIEVersion >=7;
}
//检测Firfox
var isFF = sUserAgent.indexOf("Firefox")>-1&&!isKHTML;
var isMinFF1 = isMinFF2 =isMinFF3 = false;
if(isFF){
  var reFF = new RegExp("Firefox\\/(http://www.cnblogs.com/eoiioe/admin/file://d+///d+(&#63;:\\.\\d+\\.\\d+)&#63;)");
  reFF.test(sUserAgent);
  isMinFF1 = compareVersions(RegExp["$1"],"1.0") >=0;
  isMinFF2 = compareVersions(RegExp["$1"],"2.0") >=0;
  isMinFF3 = compareVersions(RegExp["$1"],"3.0") >=0;
}
//检测Mozilla
var isMoz = sUserAgent.indexOf("Gecko")>-1&&!isKHTML;
var isMinMoz1 = isMinMoz1_4 = isMinMoz1_5 = isMinMoz1_8 = false;
if(isMoz){
  var reMoz = new RegExp("rv:(http://www.cnblogs.com/eoiioe/admin/file://d+///d+(&#63;:\\.\\d+)&#63;)");
  reMoz.test(sUserAgent);
  isMinMoz1 = compareVersions(RegExp["$1"],"1.0") >=0;
  isMinMoz1_4 = compareVersions(RegExp["$1"],"1.4") >=0;
  isMinMoz1_5 = compareVersions(RegExp["$1"],"1.5") >=0;
  isMinMoz1_8 = compareVersions(RegExp["$1"],"1.8") >=0;
}
var isNS4 = !isIE&&!isOpera&&!isMoz&&!isKHTML
      &&(sUserAgent.indexOf("Mozilla")==0)
      &&(navigator.appName == "Netscape")
      &&(fAppVersion >= 4.0 && fAppVersion <5.0);
var isMinNS4 = isMinNS4_5 = isMinNS4_7 =isMinNS4_8 = false;
if(isNS4){
  isMinNS4 = true;
  ifMinNS4_5 = fAppVersion >= 4.5;
  ifMinNS4_7 = fAppVersion >= 4.7;
  ifMinNS4_8 = fAppVersion >= 4.8;
}
//检测操作系统
var isWin = (navigator.platform == "Win32") || (navigator.platform == "Windows");
var isMac = (navigator.platform == "Mac68K") || (navigator.platform == "MacPPC")
      || (navigator.platform == "Macintosh");
var isUnix = (navigator.platform == "X11" && !isWin && !isMac);
var isWin95 = isWin98 = isWinNT4 = isWin2K = isWinME = isWinXP = isWin2K3 = isVista = false;
var isMac68K = isMacPPC = false;
var isSunOS = isMinSunOS4 = isMinSunOS5 = isMinSunOS5_5 = false;
//Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1; .NET CLR 2.0.50727; .NET CLR 3.0.04506)
if(isWin){
  isWin95 = sUserAgent.indexOf("Win95") > -1 || sUserAgent.indexOf("Windows 95") >-1;
  isWin98 = sUserAgent.indexOf("Win98") > -1 || sUserAgent.indexOf("Windows 98") >-1;
  isWinME = sUserAgent.indexOf("Win 9x 4.90") > -1 || sUserAgent.indexOf("Windows ME") >-1;
  isWin2K = sUserAgent.indexOf("Windows NT 5.0") > -1 || sUserAgent.indexOf("Windows 2000") >-1;
  isWinXP = sUserAgent.indexOf("Windows NT 5.1") > -1 || sUserAgent.indexOf("Windows XP") >-1;
  isWin2K3 = sUserAgent.indexOf("Windows NT 5.2") > -1 || sUserAgent.indexOf("Windows 2003") >-1;
  //检测Vista系统可能有bug
  isVista = sUserAgent.indexOf("Windows NT 6.0") > -1 || sUserAgent.indexOf("Windows Vista") >-1;
  if(!isWin2K3&&!isVista){
    isWinNT4 = sUserAgent.indexOf("WinNT") > -1
          || sUserAgent.indexOf("Windows NT") >-1
          || sUserAgent.indexOf("WinNT4.0") >-1
          || (sUserAgent.indexOf("Windows NT 4.0") >-1)
          && (!isWinME&&!isWin2K&&!isWinXP);
  }
}
if(isMac){
  isMac68K = sUserAgent.indexOf("Mac_68000") > -1 || sUserAgent.indexOf("68K") > -1;
  isMacPPC = suserAgent.indexOf("MacPowerPC") > -1 || sUserAgent.indexOf("PPC") > -1;
}
if(isUnix){
  isSunOS = sUserAgent.indexOf("SunOS") > -1;
  if(isSunOS){
    var reSunOS = new RegExp("SunOS (http://www.cnblogs.com/eoiioe/admin/file://d+///d+(&#63;:\\.\\d+)&#63;)");
    reSunOS.test(sUserAgent);
    isMinSunOS4 = compareVersions(RegExp["$1"],"4.0") >= 0;
    isMinSunOS5 = compareVersions(RegExp["$1"],"5.0") >= 0;
    isMinSunOS5_5 = compareVersions(RegExp["$1"],"5.5") >= 0;
  }
}
document.write("<br/>");
document.write("IE 浏览器：" + isIE);
document.write("<br/>");
document.write("Firfor 浏览器：" + isFF);
document.write("<br/>");
document.write("Windows 操作系统：" + isWin);
document.write("<br/>");
document.write("<br/>");
document.write("Mozilla 1.5 ↑：" + isMinMoz1_5);
document.write("<br/>");
document.write("Mozilla 1.8 ↑：" + isMinMoz1_8);
document.write("<br/>");
document.write("Firfox 1.0 ↑：" + isMinFF1);
document.write("<br/>");
document.write("Firfox 2.0 ↑：" + isMinFF2);
document.write("<br/>");
document.write("Firfox 3.0 ↑：" + isMinFF3);
document.write("<br/>");
document.write("IE 4.0 ↑：" + isMinIE4);
document.write("<br/>");
document.write("IE 5.0 ↑：" + isMinIE5);
document.write("<br/>");
document.write("IE 5.5 ↑：" + isMinIE5_5);
document.write("<br/>");
document.write("IE 6.0 ↑：" + isMinIE6);
document.write("<br/>");
document.write("IE 7.0 ↑：" + isMinIE7);
document.write("<br/>");
document.write("Windows 95：" + isWin95);
document.write("<br/>");
document.write("Windows 98：" + isWin98);
document.write("<br/>");
document.write("Windows ME：" + isWinME);
document.write("<br/>");
document.write("Windows NT：" + isWinNT4);
document.write("<br/>");
document.write("Windows 2000：" + isWin2K);
document.write("<br/>");
document.write("Windows XP：" + isWinXP);
document.write("<br/>");
document.write("Windows 2003：" + isWin2K3);
document.write("<br/>");
document.write("Windows Vista：" + isVista);
document.write("<br/>");

无论是获取本机还是非本机的操作系统版本信息，代码都很简单，希望对大家获多或少的有点帮助。