wx.requestPayment调起手机微信支付时,提示"调用支付JSAPI缺少参数:sign",

但在官方提供的API文档中并未发现sign参数:https://developers.weixin.qq.com/miniprogram/dev/api/open-api/payment/wx.requestPayment.html

nonceStr: that.data.nonceStr,//有值

package: that.data.pakage,//有值

paySign: that.data.paySign,//有值

signType: "MD5",

timeStamp: that.data.timeStamp//有值