diff --git a/src/kiwano-audio/SoundPlayer.cpp b/src/kiwano-audio/SoundPlayer.cpp
index bfe7a562..db48a810 100644
--- a/src/kiwano-audio/SoundPlayer.cpp
+++ b/src/kiwano-audio/SoundPlayer.cpp
@@ -35,78 +35,77 @@ SoundPlayer::~SoundPlayer()
     ClearCache();
 }
 
+size_t SoundPlayer::GetId(const String& file_path) const
+{
+    return std::hash<String>()(file_path);
+}
+
+size_t SoundPlayer::GetId(const Resource& res) const
+{
+    return static_cast<size_t>(res.GetId());
+}
+
 size_t SoundPlayer::Load(const String& file_path)
 {
-    size_t hash = std::hash<String>()(file_path);
-    if (sound_cache_.end() != sound_cache_.find(hash))
-        return hash;
+    size_t id = GetId(file_path);
+    if (sound_cache_.end() != sound_cache_.find(id))
+        return id;
 
     SoundPtr sound = MakePtr<Sound>();
-    if (sound)
+    if (sound && sound->Load(file_path))
     {
-        if (sound->Load(file_path))
-        {
-            sound->SetVolume(volume_);
-            sound_cache_.insert(std::make_pair(hash, sound));
-            return hash;
-        }
+        sound->SetVolume(volume_);
+        sound_cache_.insert(std::make_pair(id, sound));
+        return id;
     }
     return 0;
 }
 
 size_t SoundPlayer::Load(const Resource& res)
 {
-    size_t hash_code = static_cast<size_t>(res.GetId());
-    if (sound_cache_.end() != sound_cache_.find(hash_code))
-        return hash_code;
+    size_t id = GetId(res);
+    if (sound_cache_.end() != sound_cache_.find(id))
+        return id;
 
     SoundPtr sound = MakePtr<Sound>();
 
-    if (sound)
+    if (sound && sound->Load(res))
     {
-        if (sound->Load(res))
-        {
-            sound->SetVolume(volume_);
-            sound_cache_.insert(std::make_pair(hash_code, sound));
-            return hash_code;
-        }
+        sound->SetVolume(volume_);
+        sound_cache_.insert(std::make_pair(id, sound));
+        return id;
     }
     return 0;
 }
 
 void SoundPlayer::Play(size_t id, int loop_count)
 {
-    auto iter = sound_cache_.find(id);
-    if (sound_cache_.end() != iter)
-        iter->second->Play(loop_count);
+    if (auto sound = GetSound(id))
+        sound->Play(loop_count);
 }
 
 void SoundPlayer::Pause(size_t id)
 {
-    auto iter = sound_cache_.find(id);
-    if (sound_cache_.end() != iter)
-        iter->second->Pause();
+    if (auto sound = GetSound(id))
+        sound->Pause();
 }
 
 void SoundPlayer::Resume(size_t id)
 {
-    auto iter = sound_cache_.find(id);
-    if (sound_cache_.end() != iter)
-        iter->second->Resume();
+    if (auto sound = GetSound(id))
+        sound->Resume();
 }
 
 void SoundPlayer::Stop(size_t id)
 {
-    auto iter = sound_cache_.find(id);
-    if (sound_cache_.end() != iter)
-        iter->second->Stop();
+    if (auto sound = GetSound(id))
+        sound->Stop();
 }
 
 bool SoundPlayer::IsPlaying(size_t id)
 {
-    auto iter = sound_cache_.find(id);
-    if (sound_cache_.end() != iter)
-        return iter->second->IsPlaying();
+    if (auto sound = GetSound(id))
+        return sound->IsPlaying();
     return false;
 }
 
@@ -124,6 +123,14 @@ void SoundPlayer::SetVolume(float volume)
     }
 }
 
+SoundPtr SoundPlayer::GetSound(size_t id) const
+{
+    auto iter = sound_cache_.find(id);
+    if (iter != sound_cache_.end())
+        return iter->second;
+    return SoundPtr();
+}
+
 void SoundPlayer::PauseAll()
 {
     for (auto& pair : sound_cache_)
diff --git a/src/kiwano-audio/SoundPlayer.h b/src/kiwano-audio/SoundPlayer.h
index d9ae2719..6ed8d8f6 100644
--- a/src/kiwano-audio/SoundPlayer.h
+++ b/src/kiwano-audio/SoundPlayer.h
@@ -91,6 +91,23 @@ public:
     /// @param volume 音量大小，1.0 为原始音量, 大于 1 为放大音量, 0 为最小音量
     void SetVolume(float volume);
 
+    /// \~chinese
+    /// @brief 获取本地音频文件id
+    /// @param file_path 本地音频文件路径
+    /// @return 音频标识符
+    size_t GetId(const String& file_path) const;
+
+    /// \~chinese
+    /// @brief 获取音频资源id
+    /// @param res 音频资源
+    /// @return 音频标识符
+    size_t GetId(const Resource& res) const;
+
+    /// \~chinese
+    /// @brief 获取音乐对象
+    /// @param id 音频标识符
+    SoundPtr GetSound(size_t id) const;
+
     /// \~chinese
     /// @brief 暂停所有音频
     void PauseAll();
diff --git a/src/kiwano-imgui/ImGuiLayer.cpp b/src/kiwano-imgui/ImGuiLayer.cpp
index 128f28d2..29babfcc 100644
--- a/src/kiwano-imgui/ImGuiLayer.cpp
+++ b/src/kiwano-imgui/ImGuiLayer.cpp
@@ -53,7 +53,7 @@ bool ImGuiLayer::CheckVisibility(RenderContext& ctx) const
 
 void ImGuiLayer::AddItem(const String& name, const ImGuiPipeline& item)
 {
-    pipelines_.insert(std::make_pair(name, item));
+    pipelines_[name] = item;
 }
 
 void ImGuiLayer::RemoveItem(const String& name)
diff --git a/src/kiwano/base/component/ComponentManager.cpp b/src/kiwano/base/component/ComponentManager.cpp
index 392c4b43..792e61cd 100644
--- a/src/kiwano/base/component/ComponentManager.cpp
+++ b/src/kiwano/base/component/ComponentManager.cpp
@@ -49,7 +49,7 @@ Component* ComponentManager::AddComponent(size_t index, ComponentPtr component)
     {
         component->InitComponent(target_);
 
-        components_.insert(std::make_pair(index, component));
+        components_[index] = component;
     }
     return component.Get();
 }
diff --git a/src/kiwano/core/Serializable.h b/src/kiwano/core/Serializable.h
index c160cf7d..1c934657 100644
--- a/src/kiwano/core/Serializable.h
+++ b/src/kiwano/core/Serializable.h
@@ -427,7 +427,7 @@ inline Deserializer& operator>>(Deserializer& deserializer, Map<_KTy, _Ty>& map)
         _KTy key;
         _Ty  value;
         deserializer >> key >> value;
-        map.insert(std::make_pair(key, value));
+        map[key] = value;
     }
     return deserializer;
 }
diff --git a/src/kiwano/render/Font.cpp b/src/kiwano/render/Font.cpp
index 6150bbed..2bbfe4ce 100644
--- a/src/kiwano/render/Font.cpp
+++ b/src/kiwano/render/Font.cpp
@@ -119,13 +119,13 @@ FontCache::~FontCache() {}
 
 void FontCache::AddFont(size_t key, FontPtr font)
 {
-    font_cache_.insert(std::make_pair(key, font));
+    font_cache_[key] = font;
 }
 
 void FontCache::AddFontByFamily(const String& font_family, FontPtr font)
 {
     String family = TransformFamily(font_family);
-    font_family_cache_.insert(std::make_pair(family, font));
+    font_family_cache_[family] = font;
 }
 
 FontPtr FontCache::GetFont(size_t key) const
diff --git a/src/kiwano/render/TextureCache.cpp b/src/kiwano/render/TextureCache.cpp
index c6922b8c..8797fe3f 100644
--- a/src/kiwano/render/TextureCache.cpp
+++ b/src/kiwano/render/TextureCache.cpp
@@ -32,12 +32,12 @@ TextureCache::~TextureCache()
 
 void TextureCache::AddTexture(size_t key, TexturePtr texture)
 {
-    texture_cache_.insert(std::make_pair(key, texture));
+    texture_cache_[key] = texture;
 }
 
 void TextureCache::AddGifImage(size_t key, GifImagePtr gif)
 {
-    gif_texture_cache_.insert(std::make_pair(key, gif));
+    gif_texture_cache_[key] = gif;
 }
 
 TexturePtr TextureCache::GetTexture(size_t key) const
diff --git a/src/kiwano/utils/ConfigIni.cpp b/src/kiwano/utils/ConfigIni.cpp
index 529d190c..e27993c5 100644
--- a/src/kiwano/utils/ConfigIni.cpp
+++ b/src/kiwano/utils/ConfigIni.cpp
@@ -311,13 +311,13 @@ void ConfigIni::SetSectionMap(const SectionMap& sections)
 
 void ConfigIni::SetSection(const String& section, const ValueMap& values)
 {
-    sections_.insert(std::make_pair(section, values));
+    sections_[section] = values;
 }
 
 void ConfigIni::SetString(const String& section, const String& key, const String& value)
 {
     if (HasSection(section))
-        sections_[section].insert(std::make_pair(key, value));
+        sections_[section][key] = value;
     else
         SetSection(section, ValueMap{ { key, value } });
 }
@@ -363,19 +363,11 @@ void ConfigIni::DeleteKey(const String& section, const String& key)
 
 ConfigIni::ValueMap& ConfigIni::operator[](const String& section)
 {
-    if (!HasSection(section))
-    {
-        sections_.insert(std::make_pair(section, ValueMap()));
-    }
     return sections_[section];
 }
 
 const ConfigIni::ValueMap& ConfigIni::operator[](const String& section) const
 {
-    if (!HasSection(section))
-    {
-        const_cast<SectionMap&>(sections_).insert(std::make_pair(section, ValueMap()));
-    }
     return sections_.at(section);
 }
 
diff --git a/src/kiwano/utils/ResourceCache.cpp b/src/kiwano/utils/ResourceCache.cpp
index b47490c4..96ff0205 100644
--- a/src/kiwano/utils/ResourceCache.cpp
+++ b/src/kiwano/utils/ResourceCache.cpp
@@ -47,7 +47,7 @@ bool ResourceCache::LoadFromXmlFile(const String& file_path)
 
 void ResourceCache::AddObject(const String& id, ObjectBasePtr obj)
 {
-    object_cache_.insert(std::make_pair(id, obj));
+    object_cache_[id] = obj;
 }
 
 void ResourceCache::Remove(const String& id)
diff --git a/src/kiwano/utils/UserData.cpp b/src/kiwano/utils/UserData.cpp
index cfe12a88..bb353bf9 100644
--- a/src/kiwano/utils/UserData.cpp
+++ b/src/kiwano/utils/UserData.cpp
@@ -34,19 +34,19 @@ Any UserData::Get(const String& key, const Any& default_data) const
 
 void UserData::Set(const String& key, const Any& data)
 {
-    data_.insert(std::make_pair(key, data));
+    data_[key] = data;
 }
 
 void UserData::Set(const DataPair& pair)
 {
-    data_.insert(pair);
+    data_[pair.first] = pair.second;
 }
 
 void UserData::Set(const std::initializer_list<DataPair>& list)
 {
     for (const auto& pair : list)
     {
-        data_.insert(pair);
+        data_[pair.first] = pair.second;
     }
 }