var u = navigator.userAgent, app = navigator.appVersion;var isAndroid = u.indexOf(‘Android‘) > -1 || u.indexOf(‘Linux‘) > -1; //android终端或者uc浏览器var isiOS = !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/); //ios终端alert(‘是否是Android：‘+isAndroid);alert(‘是否是iOS：‘+isiOS);