打印浏览器及内核版本

console.log("Browser Information:");

// 获取navigator对象的信息
var userAgent = navigator.userAgent;
console.log("User Agent: ", userAgent);

// 解析User-Agent以获取浏览器信息
var browserInfo = detectBrowser();
console.log(browserInfo);

function detectBrowser() {
    var userAgent = navigator.userAgent;
    var browser = null;
    var version = null;

    // 检测浏览器类型
    if (userAgent.indexOf("Firefox") > -1) {
        browser = "Mozilla Firefox";
        version = userAgent.match(/Firefox\/([\d.]+)/)[1];
    } else if (userAgent.indexOf("Chrome") > -1) {
        browser = "Google Chrome";
        version = userAgent.match(/Chrome\/([\d.]+)/)[1];
    } else if (userAgent.indexOf("Safari") > -1) {
        browser = "Apple Safari";
        version = userAgent.match(/Version\/([\d.]+)/)[1];
    } else if (userAgent.indexOf("MSIE") > -1 || userAgent.indexOf("Trident/") > -1) {
        browser = "Internet Explorer";
        // 对于IE11及以上或Edge，使用正则匹配 Trident 字符串后面跟的版本号
        version = userAgent.match(/rv:([\d.]+)/)[1];
        // Edge 添加单独检测
        if (!version && userAgent.indexOf("Edge") > -1) {
            browser = "Microsoft Edge";
            version = userAgent.match(/Edge\/([\d.]+)/)[1];
        }
    } else if (userAgent.indexOf("Opera") > -1) {
        browser = "Opera";
        version = userAgent.match(/Opera\/([\d.]+)/)[1];
    }

    // 获取浏览器内核信息
    var engineInfo = getEngineInfo(userAgent);
    console.log("Browser Engine: ", engineInfo.engine, " Version: ", engineInfo.version);

    return { 
        browser: browser, 
        version: version,
        engine: engineInfo.engine,
        engineVersion: engineInfo.version
    };

    function getEngineInfo(ua) {
        var engine = 'Unknown';
        var version = '';

        if (ua.indexOf('WebKit') > -1) {
            engine = 'WebKit';
            version = ua.match(/WebKit\/([\d.]+)/)[1];
        } else if (ua.indexOf('Gecko') > -1) {
            engine = 'Gecko';
            version = ua.match(/rv:([\d.]+)/)[1];
        } else if (ua.indexOf('Presto') > -1) {
            engine = 'Presto';
            version = ua.match(/Presto\/([\d.]+)/)[1];
        } else if (ua.indexOf('Blink') > -1) {
            engine = 'Blink';
            version = ua.match(/Chrome\/([\d.]+)/)[1]; // Blink 版本通常与Chrome版本一致
        }

        return { engine, version };
    }
}

// 调用检测方法
detectBrowser();
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