let data = {
												"prepayid":res.data.prepayid,
												"appid":res.data.appid,
												"partnerid":res.data.partnerid,
												"package":res.data.package,
												"noncestr":res.data.noncestr,
												"sign":res.data.sign,
												"timestamp":res.data.timestamp
											}
											console.log(data)
											uni.requestPayment({
												"provider": "wxpay", //固定值为"wxpay"
												"orderInfo": data,
												success: function(res) {
													that.$u.toast("支付成功")
													var rawdata = JSON.parse(res
														.rawdata);
												},
												fail: function(err) {
													that.$u.toast("支付失败")
													console.log('支付失败:' + JSON
														.stringify(err));
														console.log(err)
											 }
											});

注意：app支付需要自定义基座调试