wx.addCard({

cardList: [

{

cardId: ‘’,

cardExt: ‘{“code”: “”, “openid”: “”, “timestamp”: “1516169245”, “signature”:“3a35bc79635ccccb3169f2c0c626f362df090c78”}’

},

],

success: function (res) {

console.log(res.cardList) // 卡券添加结果

},

fail:function(err){

console.log(err)

}

})

参数哪里错了