유니에서 결제 방법

payFor(item) {
    
    
				this.api.pay({
    
    
						type: 1,
						out_trade_no: item.out_trade_no
					})
					.then(res => {
    
    
						console.log(res.data, 11);
						this.data = res.data.data
						this.api.payment({
    
    
								out_trade_no: this.data
							})
							.then(res => {
    
    
								console.log(res.data, 21);
								this.json = res.data.json
								let param = JSON.parse(res.data.json)
								uni.requestPayment({
    
    
									timeStamp: param.timeStamp, //记住，这边的timeStamp一定要是字符串类型的，不然会报错
									nonceStr: param.nonceStr,
									package: param.package,
									signType: 'MD5',
									paySign: param.paySign,
									appId: param.appId,
									success: function(event) {
    
    
										wx.showToast({
    
    
											title: '支付成功',
											icon: 'success',
											duration: 2000
										});
										setTimeout(() => {
    
    
											uni.navigateBack({
    
    
												delta: 1
											})
										}, 1000)
										
									},
									
									fail: function(error) {
    
    },
									complete: function() {
    
    }
								});
							
							})
							.catch(err => {
    
    })
					})
					.catch(err => {
    
    })
			},