diff --git a/vendor/topthink/framework/src/think/File.php b/vendor/topthink/framework/src/think/File.php
new file mode 100644
index 0000000..9bd982b
--- /dev/null
+++ b/vendor/topthink/framework/src/think/File.php
@@ -0,0 +1,204 @@
+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006~2021 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: liu21st <liu21st@gmail.com>
+// +----------------------------------------------------------------------
+declare (strict_types = 1);
+
+namespace think;
+
+use SplFileInfo;
+use think\exception\FileException;
+
+/**
+ * 文件上传类
+ * @package think
+ */
+class File extends SplFileInfo
+{
+
+    /**
+     * 文件hash规则
+     * @var array
+     */
+    protected $hash = [];
+
+    protected $hashName;
+
+    /**
+     * 保存的文件后缀
+     * @var string
+     */
+    protected $extension;
+
+    public function __construct(string $path, bool $checkPath = true)
+    {
+        if ($checkPath && !is_file($path)) {
+            throw new FileException(sprintf('The file "%s" does not exist', $path));
+        }
+
+        parent::__construct($path);
+    }
+
+    /**
+     * 获取文件的哈希散列值
+     * @access public
+     * @param string $type
+     * @return string
+     */
+    public function hash(string $type = 'sha1'): string
+    {
+        if (!isset($this->hash[$type])) {
+            $this->hash[$type] = hash_file($type, $this->getPathname());
+        }
+
+        return $this->hash[$type];
+    }
+
+    /**
+     * 获取文件的MD5值
+     * @access public
+     * @return string
+     */
+    public function md5(): string
+    {
+        return $this->hash('md5');
+    }
+
+    /**
+     * 获取文件的SHA1值
+     * @access public
+     * @return string
+     */
+    public function sha1(): string
+    {
+        return $this->hash('sha1');
+    }
+
+    /**
+     * 获取文件类型信息
+     * @access public
+     * @return string
+     */
+    public function getMime(): string
+    {
+        $finfo = finfo_open(FILEINFO_MIME_TYPE);
+
+        return finfo_file($finfo, $this->getPathname());
+    }
+
+    /**
+     * 移动文件
+     * @access public
+     * @param string      $directory 保存路径
+     * @param string|null $name      保存的文件名
+     * @return File
+     */
+    public function move(string $directory, string $name = null): File
+    {
+        $target = $this->getTargetFile($directory, $name);
+
+        set_error_handler(function ($type, $msg) use (&$error) {
+            $error = $msg;
+        });
+        $renamed = rename($this->getPathname(), (string) $target);
+        restore_error_handler();
+        if (!$renamed) {
+            throw new FileException(sprintf('Could not move the file "%s" to "%s" (%s)', $this->getPathname(), $target, strip_tags($error)));
+        }
+
+        @chmod((string) $target, 0666 & ~umask());
+
+        return $target;
+    }
+
+    /**
+     * 实例化一个新文件
+     * @param string      $directory
+     * @param null|string $name
+     * @return File
+     */
+    protected function getTargetFile(string $directory, string $name = null): File
+    {
+        if (!is_dir($directory)) {
+            if (false === @mkdir($directory, 0777, true) && !is_dir($directory)) {
+                throw new FileException(sprintf('Unable to create the "%s" directory', $directory));
+            }
+        } elseif (!is_writable($directory)) {
+            throw new FileException(sprintf('Unable to write in the "%s" directory', $directory));
+        }
+
+        $target = rtrim($directory, '/\\') . \DIRECTORY_SEPARATOR . (null === $name ? $this->getBasename() : $this->getName($name));
+
+        return new self($target, false);
+    }
+
+    /**
+     * 获取文件名
+     * @param string $name
+     * @return string
+     */
+    protected function getName(string $name): string
+    {
+        $originalName = str_replace('\\', '/', $name);
+        $pos          = strrpos($originalName, '/');
+        $originalName = false === $pos ? $originalName : substr($originalName, $pos + 1);
+
+        return $originalName;
+    }
+
+    /**
+     * 文件扩展名
+     * @return string
+     */
+    public function extension(): string
+    {
+        return $this->getExtension();
+    }
+
+    /**
+     * 指定保存文件的扩展名
+     * @param string $extension
+     * @return void
+     */
+    public function setExtension(string $extension): void
+    {
+        $this->extension = $extension;
+    }
+
+    /**
+     * 自动生成文件名
+     * @access public
+     * @param string|\Closure $rule
+     * @return string
+     */
+    public function hashName($rule = ''): string
+    {
+        if (!$this->hashName) {
+            if ($rule instanceof \Closure) {
+                $this->hashName = call_user_func_array($rule, [$this]);
+            } else {
+                switch (true) {
+                    case in_array($rule, hash_algos()):
+                        $hash           = $this->hash($rule);
+                        $this->hashName = substr($hash, 0, 2) . DIRECTORY_SEPARATOR . substr($hash, 2);
+                        break;
+                    case is_callable($rule):
+                        $this->hashName = call_user_func($rule);
+                        break;
+                    default:
+                        $this->hashName = date('Ymd') . '/' . md5(microtime(true) . $this->getPathname());
+                        break;
+                }
+            }
+        }
+
+        $extension = $this->extension ?? $this->extension();
+        return $this->hashName . ($extension ? '.' . $extension : '');
+    }
+}