diff --git a/flutter_embed_into_qt/embedded/src/main/cpp/src/EmbeddedBridge.cpp b/flutter_embed_into_qt/embedded/src/main/cpp/src/EmbeddedBridge.cpp
index 84b2dd4dd8b70922a1531e642692ca5cf1e750c0..dc2a4e23b37a42733d92bdc8f4b2605241abf461 100644
--- a/flutter_embed_into_qt/embedded/src/main/cpp/src/EmbeddedBridge.cpp
+++ b/flutter_embed_into_qt/embedded/src/main/cpp/src/EmbeddedBridge.cpp
@@ -32,6 +32,9 @@ napi_ref EmbeddedBridge::g_ref_napi_obj = nullptr;
 napi_threadsafe_function EmbeddedBridge::g_cb_ref;
 
 const std::string EmbeddedBridgeTAG = "[EmbeddedBridge] ";
+const int ARG_INDEX_HANDLER = 0;
+const int ARG_INDEX_FUNCTION_NAME = 1;
+const int ARG_INDEX_DATA = 2;
 
 napi_value EmbeddedBridge::dispatchMessage(napi_env env, napi_callback_info info)
 {
@@ -39,26 +42,27 @@ napi_value EmbeddedBridge::dispatchMessage(napi_env env, napi_callback_info info
     napi_value args[3] = {nullptr};
     NAPI_CALL(env, napi_get_cb_info(env, info, &argc, args, nullptr, nullptr));
     std::string handler, funName, data;
-    GetString(env, args[0], handler);
-    GetString(env, args[1], funName);
-    GetString(env, args[2], data);
-    QMetaObject::invokeMethod(EmbeddedBridgeJsSide::instance(), "sigSendData",
-        Qt::QueuedConnection, Q_ARG(QString, QString::fromStdString(handler)),
-        Q_ARG(QString, QString::fromStdString(funName)), Q_ARG(QString, QString::fromStdString(data)));
+    GetString(env, args[ARG_INDEX_HANDLER], handler);
+    GetString(env, args[ARG_INDEX_FUNCTION_NAME], funName);
+    GetString(env, args[ARG_INDEX_DATA], data);
+    QMetaObject::invokeMethod(EmbeddedBridgeJsSide::instance(), "sigSendData", Qt::QueuedConnection,
+                              Q_ARG(QString, QString::fromStdString(handler)),
+                              Q_ARG(QString, QString::fromStdString(funName)),
+                              Q_ARG(QString, QString::fromStdString(data)));
     return nullptr;
 }
 
-//发起向JS调用时的回调
+// 发起向JS调用时的回调
 static void CallBackFunction(napi_env env, napi_value jsCallback, void *context, void *data)
 {
     size_t argc = 3;
     napi_value argv[3];
     napi_value out;
-    //data是napi_call_threadsafe_function传入的参数
-    JsCbParam *param = static_cast<JsCbParam*>(data);
-    napi_create_string_utf8(env, param->handler.c_str(), NAPI_AUTO_LENGTH, &argv[0]);
-    napi_create_string_utf8(env, param->fun.c_str(), NAPI_AUTO_LENGTH, &argv[1]);
-    napi_create_string_utf8(env, param->data.c_str(), NAPI_AUTO_LENGTH, &argv[2]);
+    // data是napi_call_threadsafe_function传入的参数
+    JsCbParam *param = static_cast<JsCbParam *>(data);
+    napi_create_string_utf8(env, param->handler.c_str(), NAPI_AUTO_LENGTH, &argv[ARG_INDEX_HANDLER]);
+    napi_create_string_utf8(env, param->fun.c_str(), NAPI_AUTO_LENGTH, &argv[ARG_INDEX_FUNCTION_NAME]);
+    napi_create_string_utf8(env, param->data.c_str(), NAPI_AUTO_LENGTH, &argv[ARG_INDEX_DATA]);
     napi_call_function(env, nullptr, jsCallback, argc, argv, &out);
     delete param;
 }