优化

@@ -41,7 +41,11 @@ class listsSql {
      * @time 2023/3/17 16:24
      */
     public static function first($db,string $where,$filed='*', $throw=false) {
-
+        if(is_array($where)){
+            $where = dbWhere($where);
+        }elseif (is_numeric($where)) {
+            $where = dbWhere(['id' => $where]);
+        }
         foreach ([self::$table,"lists_back","lists_hot"] as $table) {
             $sql =  "select {$filed} from `".$table."` where ".$where.' limit 1';
             if($throw){
@@ -58,7 +62,31 @@ class listsSql {
     }
 
 
+
+
+    public static function maxUid($db,string $where){
+        if(is_array($where)){
+            $where = dbWhere($where);
+        }elseif (is_numeric($where)) {
+            $where = dbWhere(['id' => $where]);
+        }
+        $uid = 0;
+        foreach ([self::$table,"lists_back",/*"lists_hot"*/] as $table) {
+            $sql =  "select max(`uid`) as `mc` from `".$table."` where ".$where;
+            $data = $db->value($sql);
+            if($data) {
+                $uid = max($uid, $data);
+            }
+        }
+        return $uid;
+    }
+
     public static function count($db,string $where){
+        if(is_array($where)){
+            $where = dbWhere($where);
+        }elseif (is_numeric($where)) {
+            $where = dbWhere(['id' => $where]);
+        }
         $num = 0;
         foreach ([self::$table,"lists_back",/*"lists_hot"*/] as $table) {
             $sql =  "select count(*) as `mc` from `".$table."` where ".$where;

@@ -455,15 +455,10 @@ class SyncMail {
                     if($this->isStop) return $sync_number;
 
                     if($this->isUid){
-                        $maxUid = listsSql::first($this->db,dbWhere([
+                        $maxUid = listsSql::maxUid($this->db,dbWhere([
                             'email_id'=>$this->emailId(),
                             'folder_id'=>$folder_id,
-                        ]),'max(`uid`) as `uid`');
-                        if($maxUid && $maxUid['uid']){
-                            $maxUid = $maxUid['uid'];
-                        }else {
-                            $maxUid = 0;
-                        }
+                        ]));
                         $maxUid = $maxUid?$maxUid:0;
                         if($this->isUid==1&&!$maxUid){
                             return 0;