承接微信小程序开发。扫码加微信。小程序实现代码：onLoad:function(option){wx.addCard({cardList:[{"cardExt":'{"nonce_str":"42a34c6e84334c69961f5294643ad331","code":"892237947","signature":"6211eb80ec26b4054c566b3a7d1868fa304183f4","timestamp":"1541723819"}',"cardId":"pCS2i1DQQWELTTEcORmb-irOTRqo"}],success(res){console.log(res.cardList)//卡券添加结果}})}
页面加载的时候，调用wx.addCardAPI，如图：领取，然后打开微信卡包页面，领取成功后可点击立即使用，
