diff --git a/hutool-core/src/main/java/cn/hutool/core/date/ChineseDate.java b/hutool-core/src/main/java/cn/hutool/core/date/ChineseDate.java
index 5d4ea75b7..b9027beb3 100644
--- a/hutool-core/src/main/java/cn/hutool/core/date/ChineseDate.java
+++ b/hutool-core/src/main/java/cn/hutool/core/date/ChineseDate.java
@@ -36,7 +36,7 @@ public class ChineseDate {
 	private final int gyear;
 	//公历月
 	private final int gmonth;
-	//公里日
+	//公历日
 	private final int gday;
 
 	//是否闰年
diff --git a/hutool-core/src/main/java/cn/hutool/core/util/RandomUtil.java b/hutool-core/src/main/java/cn/hutool/core/util/RandomUtil.java
index e9ba1b01d..c819bd0ee 100644
--- a/hutool-core/src/main/java/cn/hutool/core/util/RandomUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/core/util/RandomUtil.java
@@ -486,7 +486,7 @@ public class RandomUtil {
 	 * 获得一个随机的字符串（只包含数字和字符） 并排除指定字符串
 	 *
 	 * @param length   字符串的长度
-	 * @param elemData 要排除的字符串
+	 * @param elemData 要排除的字符串,如：去重容易混淆的字符串，oO0、lL1、q9Q、pP
 	 * @return 随机字符串
 	 */
 	public static String randomStringWithoutStr(int length, String elemData) {