diff --git a/niucloud/app/common.php b/niucloud/app/common.php
index 61dc7e0c5..5d29a4734 100644
--- a/niucloud/app/common.php
+++ b/niucloud/app/common.php
@@ -370,7 +370,11 @@ function filter($string)
  */
 function create_no(string $prefix = '', string $tag = '')
 {
-    return $prefix.date('YmdHis').$tag;
+    $data_center_id = 1;
+    $machine_id = 2;
+    $snowflake = new Snowflake($data_center_id, $machine_id);
+    $id = $snowflake->generateId();
+    return $prefix.date('Ymd').$tag.(string)$id;
 }
 
 /**
diff --git a/niucloud/core/util/Snowflake.php b/niucloud/core/util/Snowflake.php
index c5f4cbe58..52717f1cd 100644
--- a/niucloud/core/util/Snowflake.php
+++ b/niucloud/core/util/Snowflake.php
@@ -7,8 +7,8 @@ class Snowflake
 
     // 各部分所占位数
     const SEQUENCE_BITS = 12;
-    const MACHINE_ID_BITS = 5;
-    const DATA_CENTER_ID_BITS = 5;
+    const MACHINE_ID_BITS = 0;
+    const DATA_CENTER_ID_BITS = 0;
 
     // 最大值
     const MAX_SEQUENCE = 4095;
@@ -60,11 +60,10 @@ class Snowflake
 
         $this->last_timestamp = $timestamp;
 
-        $id = (($timestamp - self::START_EPOCH) << (self::SEQUENCE_BITS + self::MACHINE_ID_BITS + self::DATA_CENTER_ID_BITS))
-            | ($this->data_center_id << (self::SEQUENCE_BITS + self::MACHINE_ID_BITS))
-            | ($this->machine_id << self::SEQUENCE_BITS)
+        $id = (($timestamp - self::START_EPOCH) << (self::SEQUENCE_BITS))
+//            | ($this->data_center_id << (self::SEQUENCE_BITS + self::MACHINE_ID_BITS))
+//            | ($this->machine_id << self::SEQUENCE_BITS)
             | $this->sequence;
-
         return $id;
     }