diff --git a/app/Console/Commands/Test.php b/app/Console/Commands/Test.php
new file mode 100644
index 0000000..a7731fd
--- /dev/null
+++ b/app/Console/Commands/Test.php
@@ -0,0 +1,132 @@
+<?php
+
+namespace App\Console\Commands;
+
+use Illuminate\Console\Command;
+use Illuminate\Support\Facades\Storage;
+use Symfony\Component\Console\Command\Command as CommandAlias;
+
+class Test extends Command
+{
+    /**
+     * The name and signature of the console command.
+     *
+     * @var string
+     */
+    protected $signature = 'tt';
+
+    /**
+     * The console command description.
+     *
+     * @var string
+     */
+    protected $description = 'Command description';
+
+    /**
+     * Execute the console command.
+     *
+     * @return int
+     */
+    public function handle(): int
+    {
+        ini_set('memory_limit', '1024M');
+
+        $storage = Storage::disk('s3');
+
+        // $url = "https://ivampiresp.com";
+        // $url = 'http://huge.test/send.php';
+        $url = 'http://huge.test/128';
+        $ch = curl_init();
+        curl_setopt($ch, CURLOPT_URL, $url);
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
+
+        $start = 0;
+        $end = 1024;
+        // $append_size = 1024 * 1024;
+        // $append_size  为 512kb
+        $append_size = 1024 * 512;
+        $total_size = 0;
+        $downloaded_size = 0;
+
+        $support = false;
+
+        // 先发送一个 HEAD 请求，获取文件大小
+        curl_setopt($ch, CURLOPT_NOBODY, 1);
+        $resp = curl_exec($ch);
+        $total_size = curl_getinfo($ch, CURLINFO_CONTENT_LENGTH_DOWNLOAD);
+
+        echo 'total size: '.$total_size.' bytes'.PHP_EOL;
+
+        // 计算 append_size 多大合适
+        // if ($total_size > 1024 * 1024 * 1024) {
+        //     $append_size = 1024 * 1024 * 1024;
+        // } elseif ($total_size > 1024 * 1024) {
+        //     $append_size = 1024 * 1024;
+        // }
+
+        // 将 append_size 转换为 MB
+        $append_size_mb = $append_size / 1024 / 1024;
+
+        echo 'append size: '.$append_size_mb.' MB'.PHP_EOL;
+
+        // 重置
+        curl_setopt($ch, CURLOPT_NOBODY, 0);
+
+        // 创建一个空文件
+        $storage->put('download.bin', '');
+
+        do {
+            if (! $support) {
+                // 设置下载范围
+                curl_setopt($ch, CURLOPT_RANGE, "$start-$end");
+                $data = curl_exec($ch);
+                $current_size = curl_getinfo($ch, CURLINFO_SIZE_DOWNLOAD);
+
+                // file_put_contents('download.bin', $data, FILE_APPEND);
+                $storage->append('download.bin', $data, null);
+
+                // $bukkit_name = config('filesystems.disks.cos.bucket') . '-' . config('filesystems.disks.cos.app_id');
+                // cos via app
+                // dd(app('cos'));
+                // $result = app('cos')->appendObject([
+                //     'Bucket' => $bukkit_name,
+                //     'Key' => 'download.bin',
+                //     'Position' => $start, //追加对象位置
+                //     'Body' => $data,      //读取文件内容
+                // ]);
+
+                $downloaded_size += $current_size;
+                $start = $end + 1;
+                $end += $append_size;
+
+                // 判断是否下载完毕
+                if ($downloaded_size >= $total_size) {
+                    break;
+
+                    echo 'download complete';
+                }
+
+                // download progress
+                echo 'downloaded: '.$downloaded_size.' of '.$total_size.' bytes'.PHP_EOL;
+            } else {
+                echo 'server not support range download'.PHP_EOL;
+                exit;
+
+                // stream download
+                $fp = fopen('download.bin', 'w');
+                curl_setopt($ch, CURLOPT_FILE, $fp);
+                $data = curl_exec($ch);
+
+                fclose($fp);
+
+                echo 'download complete without range';
+
+                break;
+            }
+        } while ($current_size < $total_size);
+
+        curl_close($ch);
+
+        return CommandAlias::SUCCESS;
+    }
+}
diff --git a/composer.lock b/composer.lock
index 2721c5d..e17ac70 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "74897af5615b8e629deee52fb4f7bba4",
+    "content-hash": "19a1f14b2bbf08e0615ed948d4f6ddd2",
     "packages": [
         {
             "name": "aws/aws-crt-php",
@@ -12965,7 +12965,8 @@
         "ext-pcntl": "*",
         "ext-pdo": "*",
         "ext-posix": "*",
-        "ext-zip": "^1.19"
+        "ext-zip": "^1.19",
+        "ext-redis": "*"
     },
     "platform-dev": [],
     "plugin-api-version": "2.3.0"