幾種掃描二維碼工具的User-Agent
微信：
user-agent: Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_3 like Mac OS X) AppleWebKit/603.3.8 (KHTML, like Gecko) Mobile/14G60 MicroMessenger/6.6.1 NetType/WIFI Language/zh_CN
支付寶：
user-agent: Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_3 like Mac OS X) AppleWebKit/603.3.8 (KHTML, like Gecko) Mobile/14G60 Nebula PSDType(1) AlipayDefined(nt:WIFI,ws:375|603|2.0) AliApp(AP/10.1.8.112317) AlipayClient/10.1.8.112317 Alipay Language/en
百度(ios)：
user-agent: Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_3 like Mac OS X) AppleWebKit/603.3.8 (KHTML, like Gecko) Mobile/14G60 baiduboxapp/9.3.5.15 (Baidu; P2 10.3.3)
微博(ios)：
user-agent: Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_3 like Mac OS X) AppleWebKit/603.3.8 (KHTML, like Gecko) Mobile/14G60 Weibo (iPhone8,1__weibo__8.1.2__iphone__os10.3.3)
小米系統瀏覽器：
user-agent: Mozilla/5.0 (Linux; U; Android 7.1.2; zh-cn; Redmi 5A Build/N2G47H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/61.0.3163.128 Mobile Safari/537.36 XiaoMi/MiuiBrowser/9.5.5
幾種掃描二維碼工具的User-Agent