iPhone 微信UserAgent：

Mozilla/5.0 (iPhone; CPU iPhone OS 8_0 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Mobile/12A365 MicroMessenger/5.4.1 NetType/WIF

Android 微信UserAgent：

Mozilla/5.0 (Linux; Android 5.0; SM-G900P Build/LRX21T) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/33.0.0.0 Mobile Safari/537.36 MicroMessenger/6.0.0.54_r849063.501 NetType/WIFI