如何判断浏览器是移动端还是pc端 以及是否微信端？

方法一：

// 判断浏览器函数function isMobile(){if(window.navigator.userAgent.match(/(phone|pad|pod|iPhone|iPod|ios|iPad|Android|Mobile|BlackBerry|IEMobile|MQQBrowser|JUC|Fennec|wOSBrowser|BrowserNG|WebOS|Symbian|Windows Phone)/i)) {return true; // 移动端}else{return false; // PC端}}

方法二：这个方法摘自：

var os = function() { var ua = navigator.userAgent, isWindowsPhone = /(?:Windows Phone)/.test(ua), isSymbian = /(?:SymbianOS)/.test(ua) || isWindowsPhone, isAndroid = /(?:Android)/.test(ua), isFireFox = /(?:Firefox)/.test(ua), isChrome = /(?:Chrome|CriOS)/.test(ua), isTablet = /(?:iPad|PlayBook)/.test(ua) || (isAndroid && !/(?:Mobile)/.test(ua)) || (isFireFox && /(?:Tablet)/.test(ua)), isPhone = /(?:iPhone)/.test(ua) && !isTablet, isPc = !isPhone && !isAndroid && !isSymbian; return { isTablet: isTablet, isPhone: isPhone, isAndroid : isAndroid, isPc : isPc }; }(); // 使用方法 if(os.isAndroid || os.isPhone){alert("-----");}

判断是否为微信客户端：

var isWechart = function () {var rst = trueif(window.navigator.userAgent.match(/(phone|pad|pod|iPhone|iPod|ios|iPad|Android|Mobile|BlackBerry|IEMobile|MQQBrowser|JUC|Fennec|wOSBrowser|BrowserNG|WebOS|Symbian|Windows Phone)/i)){var ua = navigator.userAgent.toLowerCase();if (!(ua.match(/MicroMessenger/i) == "micromessenger")) {rst = false;}}else {rst = false;}return rst;}