利用微信群发，发送卡券，无法正常发送

curl -H 'Content-Type:application/json' -X POST 'https://api.weixin.qq.com/cgi-bin/message/mass/send?access_token=xxx' --proxy 'xxx' -d '{

   "touser":["xxx",""],

  "wxcard":{              

    "card_id":"xxx"         

    },

   "msgtype":"wxcard"

}'

以及

curl -H 'Content-Type:application/json' -X POST 'https://api.weixin.qq.com/cgi-bin/message/mass/sendall?access_token=xxx' --proxy 'xxx' -d '{

   "filter":{

    "is_to_all":false,

      "tag_id":"xxx"

   },

  "wxcard":{              

    "card_id":"xxx"         

    },

   "msgtype":"wxcard"

}'