解决精度问题

go.mod

@@ -114,6 +114,7 @@ require (
 	github.com/natefinch/lumberjack v2.0.0+incompatible
 	github.com/rwcarlsen/goexif v0.0.0-20190401172101-9e8deecbddbd
 	github.com/samber/lo v1.52.0
+	github.com/shopspring/decimal v1.4.0
 	github.com/signintech/gopdf v0.29.2
 	github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e
 	github.com/spf13/viper v1.7.1

go.sum

@@ -791,6 +791,8 @@ github.com/shirou/gopsutil v3.20.11+incompatible h1:LJr4ZQK4mPpIV5gOa4jCOKOGb4ty
 github.com/shirou/gopsutil v3.20.11+incompatible/go.mod h1:5b4v6he4MtMOwMlS0TUMTu2PcXUg8+E1lC7eC3UO/RA=
 github.com/shirou/gopsutil/v3 v3.21.6 h1:vU7jrp1Ic/2sHB7w6UNs7MIkn7ebVtTb5D9j45o9VYE=
 github.com/shirou/gopsutil/v3 v3.21.6/go.mod h1:JfVbDpIBLVzT8oKbvMg9P3wEIMDDpVn+LwHTKj0ST88=
+github.com/shopspring/decimal v1.4.0 h1:bxl37RwXBklmTi0C79JfXCEBD1cqqHt0bbgBAGFp81k=
+github.com/shopspring/decimal v1.4.0/go.mod h1:gawqmDU56v4yIKSwfBSFip1HdCCXN8/+DMd9qYNcwME=
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/signintech/gopdf v0.29.2 h1:ksvYuHNwEBP8Mi/4q5MN1ZdW9OpMbWn3pEn3ewiWoSc=
 github.com/signintech/gopdf v0.29.2/go.mod h1:d23eO35GpEliSrF22eJ4bsM3wVeQJTjXTHq5x5qGKjA=

pkg/service/bundle/bundleMetrics.go

@@ -15,6 +15,7 @@ import (
 	"time"
 
 	"github.com/duke-git/lancet/v2/datetime"
+	"github.com/shopspring/decimal"
 
 	"github.com/gin-gonic/gin"
 	"github.com/samber/lo"
@@ -84,13 +85,24 @@ func MetricsBundlePurchaseExport(ctx *gin.Context) {
 		sheet := f.GetSheetName(f.GetActiveSheetIndex())
 		// 设置“小计”
 		endRow := len(data) + 3
+		sumPayment := decimal.Zero
+		sumFinal := decimal.Zero
+		sumFee := decimal.Zero
+
+		for _, i := range data {
+			sumPayment = sumPayment.Add(decimal.NewFromFloat(float64(i.PaymentAmount)))
+			sumFinal = sumFinal.Add(decimal.NewFromFloat(float64(i.FinalAmount)))
+			sumFee = sumFee.Add(decimal.NewFromFloat(float64(i.FeeAmount)))
+		}
+
 		f.SetCellValue(sheet, fmt.Sprintf("A%d", endRow), "合计支付金额（美元）")
 		f.SetCellValue(sheet, fmt.Sprintf("B%d", endRow), "合计结算金额（美元）")
 		f.SetCellValue(sheet, fmt.Sprintf("C%d", endRow), "合计手续费金额（美元）")
 
-		f.SetCellValue(sheet, fmt.Sprintf("A%d", endRow+1), fmt.Sprintf("$%.2f", lo.SumBy(data, func(i *bundle.MetricsBundlePurchaseItem) float32 { return i.PaymentAmount })))
+		f.SetCellValue(sheet, fmt.Sprintf("A%d", endRow+1), "$"+sumPayment.StringFixed(2))
-		f.SetCellValue(sheet, fmt.Sprintf("B%d", endRow+1), fmt.Sprintf("$%.2f", lo.SumBy(data, func(i *bundle.MetricsBundlePurchaseItem) float32 { return i.FinalAmount })))
+		f.SetCellValue(sheet, fmt.Sprintf("B%d", endRow+1), "$"+sumFinal.StringFixed(2))
-		f.SetCellValue(sheet, fmt.Sprintf("C%d", endRow+1), fmt.Sprintf("$%.2f", lo.SumBy(data, func(i *bundle.MetricsBundlePurchaseItem) float32 { return i.FeeAmount })))
+		f.SetCellValue(sheet, fmt.Sprintf("C%d", endRow+1), "$"+sumFee.StringFixed(2))
+
 		// 创建黑色边框样式
 		borderStyle, err := f.NewStyle(&excelize.Style{
 			Border: []excelize.Border{
@@ -382,15 +394,24 @@ func MetricsBalanceDetailExport(ctx *gin.Context) {
 		sheet := f.GetSheetName(f.GetActiveSheetIndex())
 		// 设置“小计”
 		endRow := len(data) + 1
-		f.SetCellValue(sheet, fmt.Sprintf("R%d", endRow+1), "小计")
+		sumBundle := decimal.Zero
-		f.SetCellValue(sheet, fmt.Sprintf("S%d", endRow+1), fmt.Sprintf("$%.2f", lo.SumBy(items, func(i itemStruct) float32 { return i.BundleVideoUsedPrice })))
+		sumIncrease := decimal.Zero
-		f.SetCellValue(sheet, fmt.Sprintf("T%d", endRow+1), fmt.Sprintf("$%.2f", lo.SumBy(items, func(i itemStruct) float32 { return i.IncreaseVideoUsedPrice })))
+		sumTotal := decimal.Zero
+
+		for _, i := range items {
+			sumBundle = sumBundle.Add(decimal.NewFromFloat(float64(i.BundleVideoUsedPrice)))
+			sumIncrease = sumIncrease.Add(decimal.NewFromFloat(float64(i.IncreaseVideoUsedPrice)))
+		}
+
+		sumTotal = sumBundle.Add(sumIncrease)
+
+		f.SetCellValue(sheet, fmt.Sprintf("R%d", endRow+1), "小计")
+		f.SetCellValue(sheet, fmt.Sprintf("S%d", endRow+1), fmt.Sprintf("$%s", sumBundle.StringFixed(2)))
+		f.SetCellValue(sheet, fmt.Sprintf("T%d", endRow+1), fmt.Sprintf("$%s", sumIncrease.StringFixed(2)))
 
-		// 设置“合计”（演示：可与小计相同，也可进一步汇总其他sheet）
 		f.MergeCell(sheet, fmt.Sprintf("S%d", endRow+2), fmt.Sprintf("T%d", endRow+2))
 		f.SetCellValue(sheet, fmt.Sprintf("R%d", endRow+2), "合计")
-		f.SetCellValue(sheet, fmt.Sprintf("T%d", endRow+2), fmt.Sprintf("$%.2f", lo.SumBy(items, func(i itemStruct) float32 { return i.BundleVideoUsedPrice + i.IncreaseVideoUsedPrice })))
+		f.SetCellValue(sheet, fmt.Sprintf("T%d", endRow+2), fmt.Sprintf("$%s", sumTotal.StringFixed(2)))
-
 		// 设置样式（加粗、边框）
 		boldStyle, _ := f.NewStyle(&excelize.Style{
 			Fill: excelize.Fill{