文档修改

@@ -892,9 +892,7 @@ class Update extends Api
             }
             $UserArray = Db::name('user')->field('nickname')->order('id desc')->page(1, 50)->select();
             $NickNameArray = array_column($UserArray, 'nickname');
-            dump($UserArray);
-            die;
-            $rand_list = array_rand($NickNameArray, 30);
+            $rand_list = array_rand(array_count_values($NickNameArray), 30);
             foreach ($rand_list as $key) {
                 $RankArray[] = $NickNameArray[$key];
             }