搭建LVGL仿真环境

.gitignore

@@ -60,7 +60,8 @@ Lib/lvgl/xmls/
 Lib/lvgl/configs/
 
 # LVGL - Build system files not needed for Keil
-Lib/lvgl/CMakeLists.txt
+# NOTE: Lib/lvgl/CMakeLists.txt is REQUIRED by the PC simulator (simulator/),
+#       so it is tracked despite being a build-system file. Do not re-ignore it.
 Lib/lvgl/CMakePresets.json
 Lib/lvgl/component.mk
 Lib/lvgl/idf_component.yml
@@ -72,6 +73,12 @@ Lib/lvgl/lvgl.pc.in
 Lib/lvgl/SConscript
 Lib/lvgl/sconscript
 
+# LVGL PC Simulator - build artifacts
+simulator/build/
+
+# LVGL PC Simulator - SDL2 SDK (downloaded, see docs/测试说明/LVGL模拟器部署与使用说明.md)
+simulator/SDL2/
+
 # Binary / large files
 *.bin
 *.pyc