diff --git a/service/calculate.go b/service/calculate.go
index 9e184ef..7a05335 100644
--- a/service/calculate.go
+++ b/service/calculate.go
@@ -20,7 +20,7 @@ func (_CalculateService) ComprehensivelyCalculateReport(reportId string) (err er
 	defer cancel()
 
 	// 资料准备
-	var report *model.Report
+	var report = new(model.Report)
 	err = global.DB.NewSelect().Model(report).
 		Relation("Summary").
 		Relation("WillDilutedFees").
diff --git a/service/charge.go b/service/charge.go
index 33f8346..36c1427 100644
--- a/service/charge.go
+++ b/service/charge.go
@@ -61,7 +61,7 @@ func (c _ChargeService) SettleCharge(seq int64, uid string) error {
 	if err != nil {
 		return err
 	}
-	var record *model.UserCharge
+	var record = new(model.UserCharge)
 	err = tx.NewSelect().Model(&record).
 		Where("seq = ?", seq).
 		Where("user_id = ?", uid).
diff --git a/service/end_user.go b/service/end_user.go
index 8fae078..1e0fad8 100644
--- a/service/end_user.go
+++ b/service/end_user.go
@@ -10,7 +10,6 @@ import (
 	"electricity_bill_calc/global"
 	"electricity_bill_calc/logger"
 	"electricity_bill_calc/model"
-	"errors"
 	"fmt"
 	"io"
 	"strconv"
@@ -164,16 +163,12 @@ func (es _EndUserService) BatchImportNonPVRegister(reportId string, file io.Read
 		errs.AddError(es.newVirtualExcelAnalysisError(err))
 		return errs
 	}
-	var reportDetail *model.Report
+	var reportDetail = new(model.Report)
 	err = global.DB.NewSelect().Model(reportDetail).
 		Where("id = ?", reportId).
 		Scan(ctx)
 	if err != nil {
-		errs.AddError(es.newVirtualExcelAnalysisError(err))
-		return errs
-	}
-	if reportDetail == nil {
-		errs.AddError(es.newVirtualExcelAnalysisError(errors.New("未能找到相应的报表。")))
+		errs.AddError(es.newVirtualExcelAnalysisError(fmt.Errorf("未能找到相应的报表。%w", err)))
 		return errs
 	}
 	meterAppers := make([]MeterAppears, 0)
@@ -269,14 +264,10 @@ func (es _EndUserService) BatchImportPVRegister(reportId string, file io.Reader)
 		errs.AddError(es.newVirtualExcelAnalysisError(err))
 		return errs
 	}
-	var reportDetail *model.Report
+	var reportDetail = new(model.Report)
 	err = global.DB.NewSelect().Model(reportDetail).Where("id = ?", reportId).Scan(ctx)
 	if err != nil {
-		errs.AddError(es.newVirtualExcelAnalysisError(err))
-		return errs
-	}
-	if reportDetail != nil {
-		errs.AddError(es.newVirtualExcelAnalysisError(errors.New("未能找到相应的报表。")))
+		errs.AddError(es.newVirtualExcelAnalysisError(fmt.Errorf("未能找到相应的报表。%w", err)))
 		return errs
 	}
 	meterAppers := make([]MeterAppears, 0)
diff --git a/service/god_mode.go b/service/god_mode.go
index 6024635..191066f 100644
--- a/service/god_mode.go
+++ b/service/god_mode.go
@@ -28,13 +28,9 @@ var GodModeService = _GodModeService{
 // 从此处开始为删除报表相关的部分
 
 func (_GodModeService) resetReportIndex(tx *bun.Tx, ctx *context.Context, reportId string) (bool, error) {
-	var report *model.Report
+	var report = new(model.Report)
 	err := tx.NewSelect().Model(report).Where("id = ?", reportId).Scan(*ctx)
 	if err != nil {
-		tx.Rollback()
-		return false, err
-	}
-	if report == nil {
 		tx.Rollback()
 		return false, exceptions.NewNotFoundError("指定报表索引未找到。")
 	}
@@ -338,11 +334,11 @@ func (_GodModeService) isTheLatestReport(ctx *context.Context, reportId string)
 	if err != nil || report == nil {
 		return false, exceptions.NewNotFoundErrorFromError("指定报表索引未找到。", err)
 	}
-	var maxPeriod *time.Time
+	var maxPeriod time.Time
 	err = global.DB.NewSelect().Model((*model.Report)(nil)).
 		ColumnExpr("max(?)", bun.Ident("period")).
 		Where("park_id = ?", report.ParkId).
-		Scan(*ctx, maxPeriod)
+		Scan(*ctx, &maxPeriod)
 	if err != nil {
 		return false, err
 	}
diff --git a/service/park.go b/service/park.go
index 66cee3d..b73ce2f 100644
--- a/service/park.go
+++ b/service/park.go
@@ -125,7 +125,7 @@ func (_ParkService) FetchParkDetail(pid string) (*model.Park, error) {
 	}
 	ctx, cancel := global.TimeoutContext()
 	defer cancel()
-	var park *model.Park
+	var park = new(model.Park)
 	err := global.DB.NewSelect().Model(&park).
 		Where("id = ?", pid).
 		Scan(ctx)
diff --git a/service/report.go b/service/report.go
index 80fbdbe..0609fb8 100644
--- a/service/report.go
+++ b/service/report.go
@@ -277,19 +277,15 @@ func (_ReportService) RetreiveReportIndex(rid string) (*model.Report, error) {
 	}
 	ctx, cancel := global.TimeoutContext()
 	defer cancel()
-	var report *model.Report
+	var report = new(model.Report)
 	err := global.DB.NewSelect().Model(report).
 		Where("id = ?", rid).
 		Scan(ctx)
 	if err != nil {
 		return nil, err
 	}
-	if report != nil {
-		cache.CacheEntity(report, []string{fmt.Sprintf("report:%s", rid), "park"}, "report", rid)
-		return report, nil
-	} else {
-		return nil, nil
-	}
+	cache.CacheEntity(report, []string{fmt.Sprintf("report:%s", rid), "park"}, "report", rid)
+	return report, nil
 }
 
 func (_ReportService) RetreiveReportSummary(rid string) (*model.ReportSummary, error) {
diff --git a/service/withdraw.go b/service/withdraw.go
index 512ccd4..e9a2be2 100644
--- a/service/withdraw.go
+++ b/service/withdraw.go
@@ -28,7 +28,7 @@ func (_WithdrawService) ApplyWithdraw(reportId string) (bool, error) {
 	ctx, cancel := global.TimeoutContext()
 	defer cancel()
 
-	var report *model.Report
+	var report = new(model.Report)
 	err := global.DB.NewSelect().Model(report).
 		Where("id = ?", reportId).
 		Scan(ctx)
@@ -38,16 +38,16 @@ func (_WithdrawService) ApplyWithdraw(reportId string) (bool, error) {
 	if !report.Published {
 		return false, exceptions.NewImproperOperateError("指定报表尚未发布。")
 	}
-	var maxPublished *time.Time
+	var maxPublished time.Time
 	err = global.DB.NewSelect().Model((*model.Report)(nil)).
 		ColumnExpr("max(period)").
 		Where("park_id = ?", report.ParkId).
 		Where("published = ?", true).
-		Scan(ctx, maxPublished)
+		Scan(ctx, &maxPublished)
 	if err != nil {
 		return false, exceptions.NewNotFoundError("未能找到匹配的系列报表。")
 	}
-	if maxPublished != nil && !report.Period.Equal(*maxPublished) {
+	if !report.Period.Equal(maxPublished) {
 		return false, exceptions.NewImproperOperateError("申请撤回的报表必须是最新已发布的报表。")
 	}