diff --git a/im-common/src/main/java/net/sopod/soim/common/util/Collects.java b/im-common/src/main/java/net/sopod/soim/common/util/Collects.java
new file mode 100644
index 0000000..4738e61
--- /dev/null
+++ b/im-common/src/main/java/net/sopod/soim/common/util/Collects.java
@@ -0,0 +1,23 @@
+package net.sopod.soim.common.util;
+
+/**
+ * Collects
+ *
+ * @author tmy
+ * @date 2022-04-22 10:17
+ */
+public class Collects {
+
+    /**
+     * 数组翻转
+     */
+    public static long[] revers(long[] arr) {
+        for (int i = 0, j = arr.length - 1; i < j; i++, j--) {
+            long temp = arr[i];
+            arr[i] = arr[j];
+            arr[j] = temp;
+        }
+        return arr;
+    }
+
+}