diff --git a/main.cpp b/main.cpp
index 0ee827d..221240f 100644
--- a/main.cpp
+++ b/main.cpp
@@ -8,127 +8,19 @@
 #include <spdlog/spdlog.h>
 
 int main(int, char**) {
+    // 设置日志等级，不设置的话默认为 info
+    spdlog::set_level(spdlog::level::err);
+
+    // 不同等级的log
+    spdlog::trace("最低级别log!");
+    spdlog::debug("调试信息!");
     spdlog::info("你好，世界!");
-    nlohmann::json json_data = {{"a",10}};
-    auto num = json_data["a"].get<int>();
-    spdlog::warn("json: {}", num);
-    
-    glm::vec2 a = glm::vec2(1.0f, 2.0f);
-    glm::vec2 b = glm::vec2(3.0f, 4.0f);
-    auto c = a * b;
-    auto d = glm::distance(a, b);
-    SDL_Log("d = (%f)", d);
+    spdlog::warn("警告!，很可能会出错");
+    spdlog::error("程序出错啦!");
+    spdlog::critical("最高级别的log!, 比error还严重!");
 
-    SDL_Log("c = (%f, %f)", c.x, c.y);
-
-    std::cout << "Hello, World!" << std::endl;
-    // SDL初始化
-    if (!SDL_Init(SDL_INIT_AUDIO | SDL_INIT_VIDEO)) {
-        std::cerr << "SDL_Init Error: " << SDL_GetError() << std::endl;
-        return 1;
-    }
-    // 创建窗口
-    SDL_Window *window = SDL_CreateWindow("Hello World!", 800, 600, 0);
-    // 创建渲染器
-    SDL_Renderer *renderer = SDL_CreateRenderer(window, NULL);
-
-    // SDL3_Image不需要手动初始化
-
-    // 加载图片
-    SDL_Texture *texture = IMG_LoadTexture(renderer, "assets/textures/Props/big-crate.png");
-
-    // SDL_Mixer初始化
-    if (!Mix_OpenAudio(0, NULL)) {
-        std::cerr << "Mix_OpenAudio Error: " << SDL_GetError() << std::endl;
-        return 1;
-    }
-
-    // 读取音乐
-    Mix_Music *music = Mix_LoadMUS("assets/audio/hurry_up_and_run.ogg");
-    // 播放音乐
-    Mix_PlayMusic(music, -1);
-
-    // SDL_TTF初始化
-    if (!TTF_Init()) {
-        std::cerr << "TTF_Init Error: " << SDL_GetError() << std::endl;
-        return 1;
-    }
-    // 加载字体
-    TTF_Font *font = TTF_OpenFont("assets/fonts/VonwaonBitmap-16px.ttf", 24);
-
-    // 创建文本纹理
-    SDL_Color color = {255, 255, 255, 255};
-    SDL_Surface *surface = TTF_RenderText_Solid(font, "Hello, SDL! 中文也可以", 0, color);
-    SDL_Texture *textTexture = SDL_CreateTextureFromSurface(renderer, surface);
-
-    // SDL3 新的绘制文本方法
-    TTF_TextEngine *textEngine = TTF_CreateRendererTextEngine(renderer);
-    TTF_Text *text = TTF_CreateText(textEngine, font, "SDL3 新的文本渲染方式", 0);
-    TTF_SetTextColor(text, 255, 0, 0, 255);
-    TTF_SetTextWrapWidth(text, 50);
-    // Do something with the window and renderer here...
-    // 渲染循环
-    glm::vec2 mousePos = glm::vec2(0.0f, 0.0f);
-    while (true) {
-        SDL_Event event;
-        if (SDL_PollEvent(&event)) {
-            if (event.type == SDL_EVENT_QUIT) {
-                break;
-            }
-        }
-        auto state = SDL_GetMouseState(&mousePos.x, &mousePos.y);
-        // SDL_Log("Mouse Pos: (%f, %f)", mousePos.x, mousePos.y);
-        if (state & SDL_BUTTON_LMASK) {
-            SDL_Log("Left Button Down");
-        }
-        if (state & SDL_BUTTON_RMASK) {
-            SDL_Log("Right Button Down");
-        }
-        // 清屏
-        SDL_RenderClear(renderer);
-        // 画一个长方形
-        SDL_FRect rect = {100, 100, 200, 200};
-        SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255);
-        SDL_RenderFillRect(renderer, &rect);
-        
-
-        // 画图片
-        SDL_FRect dstrect = {200, 200, 200, 200};
-        SDL_RenderTexture(renderer, texture, NULL, &dstrect);
-
-        // 画文本
-        SDL_FRect textRect = {300, 300, static_cast<float>(surface->w), static_cast<float>(surface->h)};
-        SDL_RenderTexture(renderer, textTexture, NULL, &textRect);
-        SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255); 
-
-        // 新的画文本方法：
-        TTF_DrawRendererText(text, 400, 400);
-
-        // 更新屏幕
-        SDL_RenderPresent(renderer);
-        
-
-        
-    }
-
-    // 清理图片资源
-    SDL_DestroyTexture(texture);
-
-    // 清理音乐资源
-    Mix_FreeMusic(music);
-    Mix_CloseAudio();
-    Mix_Quit();
-
-    // 清理字体资源
-    SDL_DestroySurface(surface);
-    SDL_DestroyTexture(textTexture);
-    TTF_CloseFont(font);
-    TTF_Quit();
-
-    // 清理并退出
-    SDL_DestroyRenderer(renderer);
-    SDL_DestroyWindow(window);
-    SDL_Quit();
+    // 格式化输出
+    spdlog::info("日志格式化输出: {} {} {}", 1, "hello", 3.14);
 
     return 0;
 }
\ No newline at end of file