diff --git a/entry/src/main/cpp/FileAccessMethods.cpp b/entry/src/main/cpp/FileAccessMethods.cpp
index 4c588e88fd64d4d0a26a8f574e96e24e3b4255d0..c1dc5b38b02261c241c2ab461a7897f652c03043 100644
--- a/entry/src/main/cpp/FileAccessMethods.cpp
+++ b/entry/src/main/cpp/FileAccessMethods.cpp
@@ -26,17 +26,19 @@
 const int DOMAIN = 0xFF00;
 const char *TAG = "[FileAccessMethods]";
 // [Start napi_value]
+// entry/src/main/cpp/FileAccessMethods.cpp
 static napi_value TransferSandboxPath(napi_env env, napi_callback_info info) {
     size_t argc = 2;
     napi_value argv[2] = {nullptr};
     napi_get_cb_info(env, info, &argc, argv, nullptr, nullptr);
-
+    //Convert the sandbox path and the contents of the text to be written into C-side variables through the Node-API interface.
     size_t pathSize, contentsSize;
     char pathBuf[256], contentsBuf[256];
     // [Start get_path]
     napi_get_value_string_utf8(env, argv[0], pathBuf, sizeof(pathBuf), &pathSize);
     napi_get_value_string_utf8(env, argv[1], contentsBuf, sizeof(contentsBuf), &contentsSize);
     // [End get_path]
+    //Open the file through the specified path.
     snprintf(pathBuf, sizeof(pathBuf), "%s/TransferSandboxPath.txt", pathBuf);
      // [Start fp]
     FILE *fp;
@@ -48,6 +50,7 @@ static napi_value TransferSandboxPath(napi_env env, napi_callback_info info) {
     }
     OH_LOG_Print(LOG_APP, LOG_INFO, DOMAIN, TAG, "Open file successfully!");
      // [Start contentsBuf]
+    //Write a file using the file operation function of the C standard library.
     fprintf(fp, "%s", contentsBuf);
       // [End contentsBuf]
     fclose(fp);
@@ -158,6 +161,7 @@ static napi_value WriteFileUsingPickerFd(napi_env env, napi_callback_info info)
 }
 // [End write_pick]
    // [Start read_file_pick]
+// entry/src/main/cpp/FileAccessMethods.cpp
 static napi_value ReadFileUsingPickerFd(napi_env env, napi_callback_info info) {
     size_t argc = 1;
     napi_value argv[1] = {nullptr};