diff --git a/_test/pay-v3-config.php b/_test/pay-v3-config.php
index 14d095a..c844e37 100644
--- a/_test/pay-v3-config.php
+++ b/_test/pay-v3-config.php
@@ -1,17 +1,26 @@
 <?php
 
-return [
-    'appid'        => '绑定的APPID',
-    'mch_id'       => '您的商户编号',
-    'mch_v3_key'   => '您的V3接口密码',
-    'cert_public'  => <<<EOF
+$certPublic = <<<CERT
 -----BEGIN CERTIFICATE-----
-您的证书内容
+你的微信商户证书公钥内容
 -----END CERTIFICATE-----
-EOF,
-    'cert_private' => <<<EOF
+CERT;
+
+$certPrivate = <<<CERT
 -----BEGIN PRIVATE KEY-----
-您的证书内容
+你的微信商户证书私钥内容
 -----END PRIVATE KEY-----
-EOF,
+CERT;
+
+return [
+    // 商户绑定的公众号APPID
+    'appid'        => '',
+    // 微信商户编号ID
+    'mch_id'       => '',
+    // 微信商户V3接口密钥
+    'mch_v3_key'   => '',
+    // 微信商户证书公钥，支持证书内容或文件路径
+    'cert_public'  => $certPublic,
+    // 微信商户证书私钥，支持证书内容或文件路径
+    'cert_private' => $certPrivate,
 ];
\ No newline at end of file