diff --git a/jsowell-common/src/main/java/com/jsowell/common/util/AdapayUtil.java b/jsowell-common/src/main/java/com/jsowell/common/util/AdapayUtil.java
index b7c7afc98..d614eb89c 100644
--- a/jsowell-common/src/main/java/com/jsowell/common/util/AdapayUtil.java
+++ b/jsowell-common/src/main/java/com/jsowell/common/util/AdapayUtil.java
@@ -44,7 +44,7 @@ public class AdapayUtil {
 	 * @return
 	 */
 	public static String formatAmount(BigDecimal amount, int n) {
-		//保留2位小数
+		//保留n位小数 没有四舍五入
 		double d = amount.setScale(n, RoundingMode.DOWN).doubleValue();
 		//不足则补0
 		StringBuilder pattern = new StringBuilder("0");