diff --git a/worldsrv/welfmgr.go b/worldsrv/welfmgr.go
index 30f5822..dff3434 100644
--- a/worldsrv/welfmgr.go
+++ b/worldsrv/welfmgr.go
@@ -3,6 +3,7 @@ package main
 import (
 	"fmt"
 	"math"
+	"strconv"
 	"time"
 
 	"mongo.games.com/goserver/core/logger"
@@ -1063,7 +1064,7 @@ func (this *WelfareMgr) BlindBoxInfo(p *Player, bid int32) {
 			if cyc == 1 || blindBox.Cycle == model.WelfareOpen {
 				p.WelfData.BlindBoxId = 0
 			}
-		}                               // == 1代表当日循环
+		} // == 1代表当日循环
 		if p.WelfData.BlindBoxId == 0 { // 未领取过发随机Date
 
 			idx := bid
@@ -1922,8 +1923,11 @@ func (this *WelfareMgr) UpdateDiamondBankData(p *Player, coinNum int64, isWin bo
 	} else {
 		addDiamond = float64(coinNum) * float64(LoseCoinRate) / 10000000
 	}
+	//保留小数点后4位
+	diamondStr := fmt.Sprintf("%.4f", addDiamond)
+	addDiamond, _ = strconv.ParseFloat(diamondStr, 64)
 	p.WelfData.DiamondBank.BankDiamond += addDiamond
-	logger.Logger.Tracef("更新钻石存储罐数据 snid = %d,coinNum = %d,isWin = %s,当前钻石存储罐钻石数量：%f", p.SnId, coinNum, isWin, p.WelfData.DiamondBank.BankDiamond)
+	logger.Logger.Tracef("玩家更新钻石存储罐数据 snid = %d,coinNum = %d,isWin = %s,当前钻石存储罐钻石数量：%f，本次增加钻石数量:%f", p.SnId, coinNum, isWin, p.WelfData.DiamondBank.BankDiamond, addDiamond)
 }
 func (this *WelfareMgr) Update() {