需求：當get參數(shù)中social_platform=wechat_circle并且在微信打開時，跳轉(zhuǎn)到新頁面
http://m.iqiyi.com/v_19rqv5hs78.html?social_platform=wechat_circle
location ~* ^/(w|v)_.*$ {
set $flag 0;
if ($arg_social_platform = "wechat_circle") {
set $flag "${flag}1";
}
if ($http_user_agent ~* "MicroMessenger") {
set $flag "${flag}2";
}
if ($flag = "012") {
proxy_pass [http://vue](http://vue)_qae;
}
proxy_pass http://10.110.117.55:80;
}
