feat : pay Adapter

app/Constants/ReturnCode.php

@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Constants;
+
+use Hyperf\Constants\Annotation\Constants;
+use Hyperf\Constants\Annotation\Message;
+use Hyperf\Constants\EnumConstantsTrait;
+
+#[Constants]
+enum ReturnCode: int
+{
+    use EnumConstantsTrait;
+
+    #[Message("Server Error!")]
+    case SERVER_ERROR = 500;
+
+    /**
+     * 返回成功
+     */
+    #[Message('return success')]
+    case SUCCESS = 0;
+
+    /**
+     * 返回失败
+     */
+    #[Message('return fail')]
+    case ERROR = 1;
+}