文件还在测试中

app/Core/View.php

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+<?php
+namespace Core;
+
+class View
+{
+    public static function buffer(string $view, array $data = []): string
+    {
+        $file = BASE_PATH . '/app/Views/' . str_replace('.', '/', $view) . '.php';
+        if (!is_file($file)) {
+            throw new \Exception("视图不存在: $view");
+        }
+        ob_start();
+        extract($data, EXTR_SKIP);
+        include $file;
+        return ob_get_clean();
+    }
+
+    public static function make(string $view, array $data = [], ?string $layout = null): string
+    {
+        $content = self::buffer($view, $data);
+        if ($layout) {
+            return self::buffer($layout, array_merge($data, ['content' => $content]));
+        }
+        return $content;
+    }
+}