重构默认本地上传组件；

extend/think/filesystem/driver/LocalPublic.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace think\filesystem\driver;
+
+use think\facade\Request;
+
+class LocalPublic extends Local
+{
+    public function url(string $path): string
+    {
+
+        $url = sysconfig('upload', 'local_domain');
+
+        if (empty($url)) {
+            $host = Request::host();
+
+            if (!empty($host)) {
+                $url = Request::domain();
+            }
+        }
+        if (isset($this->config['url'])) {
+            $url = trim($url, '/') . '/' . trim($this->config['url'], '/');
+        }
+
+        if (isset($url)) {
+            return $this->concatPathToUrl($url, $path);
+        }
+        return parent::url($path);
+    }
+}