• 当前 Bug 的表现（可附上截图）

微信小程序调用卡劵接口报：签名错误；

官方帮助文档无有效帮助材料

https://developers.weixin.qq.com/miniprogram/dev/api/wx.addCard.html

• 预期表现

• 复现路径

• 提供一个最简复现 Demo

let timeNowStr = Date.parse(new Date()) / 1000;

let signatureRawStr = ‘code=LC00000111&timestamp=’+timeNowStr;

console.log(signatureRawStr)

let signature = md5.hexMD5(signatureRawStr).toUpperCase();

console.log(signature)

let cardExt = JSON.stringify({

‘code’: memberInfo.cardBarcode,

‘timestamp’: timeNowStr,

‘signature’: signature

})

console.log(cardExt)

wx.addCard({

cardList: [{

‘cardId’: ‘plOfBvvG3v*******RP9BgSoVO8’,

‘cardExt’: cardExt

}],

success: function(){

}

})