diff --git a/utils/format/price.go b/utils/format/price.go
index 99063fde..f89e3f0a 100644
--- a/utils/format/price.go
+++ b/utils/format/price.go
@@ -6,8 +6,13 @@ import (
 )
 
 // 厘转美元
-func CentitoDollar(price int64) float64 {
-	str := fmt.Sprintf("%.3f", float64(price)/float64(1000))
+func CentitoDollar(price int64, remainFloatPoint ...uint) float64 {
+	s := "%.3f"
+	if len(remainFloatPoint) > 0 {
+		s = fmt.Sprintf("%%.%df", remainFloatPoint[0])
+	}
+	fmt.Println(s)
+	str := fmt.Sprintf(s, float64(price)/float64(1000))
 	dollar, _ := strconv.ParseFloat(str, 64)
 	return dollar
 }