摘要：
+RegExp["x241"]:undefined,ie:/msie(d+.d+)|Trident/i.test(navigator.userAgent)?(document.documentMode||+RegExp["x241"]):undefined,isGecko:/gecko/i.test(navigator.userAgent)&&!/likegecko/i.test(navigator.userAgent),isWebkit:/webkit/i.test(navigator.userAgent),opera:/opera(/|)(d+(.d+)?)(.+?(version/(d+(.d+)?)))?/i.test(navigator.userAgent)?+(RegExp["x246"]||RegExp["x242"]):undefined,safari:/(d+.d)?(?:.d)?s+safari/?(d+.d+)?/i.test(navigator.userAgent)&&!/chrome/i.test(navigator.userAgent)?+RegExp["x241"]:undefined}
browser: {
chrome: /chrome/(d+.d+)/i.test(navigator.userAgent) ? +RegExp["x241"] : undefined,
firefox: /firefox/(d+.d+)/i.test(navigator.userAgent) ? +RegExp["x241"] : undefined,
ie: /msie (d+.d+)|Trident/i.test(navigator.userAgent) ? (document.documentMode || +RegExp["x241"]) : undefined,
isGecko: /gecko/i.test(navigator.userAgent) && !/like gecko/i.test(navigator.userAgent),
isWebkit: /webkit/i.test(navigator.userAgent),
opera: /opera(/| )(d+(.d+)?)(.+?(version/(d+(.d+)?)))?/i.test(navigator.userAgent) ? +(RegExp["x246"] || RegExp["x242"]) : undefined,
safari: /(d+.d)?(?:.d)?s+safari/?(d+.d+)?/i.test(navigator.userAgent) && !/chrome/i.test(navigator.userAgent) ? +(RegExp["x241"] || RegExp["x242"]) : undefined,
isSogouIE: ((navigator.userAgent.toLowerCase()).indexOf("msie") > 0) && ((navigator.userAgent.toLowerCase()).indexOf("se") > 0) && ((navigator.userAgent.toLowerCase()).indexOf("360se") == -1),
isBaidu: /BIDUBrowser/i.test(navigator.userAgent),
edge: /edge/(d+)/i.test(navigator.userAgent) ? +RegExp["x241"] : undefined
}