判断浏览器脚本detect

最新推荐文章于 2025-11-23 10:54:50 发布

原创最新推荐文章于 2025-11-23 10:54:50 发布 · 302 阅读

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文章标签：

#浏览器 #脚本 #windows #opera #mozilla #function

此脚本用于检测用户的浏览器类型及版本，并根据不同浏览器特性提供相应功能。支持包括IE、Firefox、Chrome、Safari、Opera等主流浏览器，同时识别操作系统平台。

detect.js

var sUserAgent = navigator.userAgent;
var fAppVersion = parseFloat(navigator.appVersion);

function compareVersions(sVersion1, sVersion2) {

}

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 (//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;
}

var isKHTML = sUserAgent.indexOf("KHTML") > -1
              || sUserAgent.indexOf("Konqueror") > -1
              || sUserAgent.indexOf("AppleWebKit");

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///(//d+(?://.//d*)?)");
        reAppleWebKit.test(sUserAgent);
        var fAppleWebKitVersion = parseFloat(RegExp["$1"]);

        isMinSafari1 = fAppleWebKitVersion >= 85;
        isMinSafari1_2 = fAppleWebKitVersion >= 124;
    } else if (isKonq) {

        var reKonq = new RegExp("Konqueror///(//d+(?://.//d+(?://.//d)?)?)");
        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;
    }

}

var isIE = sUserAgent.indexOf("compatible") > -1
           && sUserAgent.indexOf("MSIE") > -1
           && !isOpera;

var isMinIE4 = isMinIE5 = isMinIE5_5 = isMinIE6 = false;

if (isIE) {
    var reIE = new RegExp("MSIE (//d+//.//d+);");
    reIE.test(sUserAgent);
    var fIEVersion = parseFloat(RegExp["$1"]);

    isMinIE4 = fIEVersion >= 4;
    isMinIE5 = fIEVersion >= 5;
    isMinIE5_5 = fIEVersion >= 5.5;
    isMinIE6 = fIEVersion >= 6.0;
}

var isMoz = sUserAgent.indexOf("Gecko") > -1
&& !isKHTML;

var isMinMoz1 = sMinMoz1_4 = isMinMoz1_5 = false;

if (isMoz) {
    var reMoz = new RegExp("rv:(//d+//.//d+(?://.//d+)?)");
    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;
}

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;
    isMinNS4_5 = fAppVersion >= 4.5;
    isMinNS4_7 = fAppVersion >= 4.7;
    isMinNS4_8 = fAppVersion >= 4.8;
}

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 = false;
var isMac68K = isMacPPC = false;
var isSunOS = isMinSunOS4 = isMinSunOS5 = isMinSunOS5_5 = false;

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;
    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("Mac_PowerPC") > -1
               || sUserAgent.indexOf("PPC") > -1;
}

if (isUnix) {
isSunOS = sUserAgent.indexOf("SunOS") > -1;

    if (isSunOS) {
        var reSunOS = new RegExp("SunOS (//d+//.//d+(?://.//d+)?)");
        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;
    }
}

<html>
    <head>
       <title>Cross-Browser Web Service Example</title>

        <script type="text/javascript" src="detect.js"></script>
        <script type="text/javascript" src="stringbuffer.js"></script>
        <script type="text/javascript" src="http.js"></script>
        <script type="text/javascript" src="webservice.js"></script>
        <script>
            function callWebService() {

                var sZip = document.getElementById("txtZip").value;

                var oService = new TemperatureService();
                var fResult = oService.send(sZip);

                alert("It is currently " + fResult + " degrees in that zip code.");
            }

        </script>
    </head>
    <body>
        <p>This example uses the cross-browser <code>TemperatureService</code> object
        to get the temperature in a given zip code. By default, this will not work in
        newer browsers.</p>
        <p><input type="text" id="txtZip" size="10" />
        <input type="button" value="Get Temperature" onclick="callWebService()" /></p>
    </body>

</html>