DY/KS免费对接 https://open.weixin.qq.com/connect/oauth2/authorize?appid=wxf0fd2aebafcf2932&redirect_uri=https://vtravel.link2shops.com/voffer-api/api/sys/openidCallBack&response_type=code&scope=snsapi_base&state=T0012#wechat_redirect
