diff --git a/CMakeLists.txt b/CMakeLists.txt
index 56f480d..e0e65e6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -45,3 +45,10 @@ cm_example_project(CreateBinaryH)
 add_executable(NormalCompressTest NormalCompressTest.cpp)
 CM_EXAMPLE_PROJECT(NormalCompressTest)
 
+add_executable(MultiMapTest MultiMapTest.cpp)
+cm_example_project(MultiMapTest)
+
+add_executable(OSFontList OSFontList.cpp)
+cm_example_project(OSFontList)
+target_link_libraries(OSFontList PRIVATE CMUtil)
+
diff --git a/OSFontList.cpp b/OSFontList.cpp
new file mode 100644
index 0000000..8271f40
--- /dev/null
+++ b/OSFontList.cpp
@@ -0,0 +1,134 @@
+#include<iostream>
+#include<iomanip>
+#include<hgl/text/FontInfo.h>
+#include<hgl/util/json/JsonTool.h>
+#include<hgl/io/FileOutputStream.h>
+#include<hgl/io/TextOutputStream.h>
+
+using namespace hgl;
+
+constexpr const os_char font_type_string[3][10]=
+{
+    OS_TEXT("Raster"),
+    OS_TEXT("Vector"),
+    OS_TEXT("TrueType")
+};
+
+#define JSON_OUT_FI_UINT(name)   cur_fi[#name]=(uint)(fi->name);
+#define JSON_OUT_FI_BOOL(name)   cur_fi[#name]=(fi->name?"true":"false");
+
+void OutputJson(const FontInfoList &fi_list)
+{
+    const uint count=fi_list.GetCount();
+    FontInfo *fi=fi_list.GetData();
+
+    Json::Value root;
+    Json::Value font_list;
+
+    root["count"]=count;
+
+    for(uint i=0;i<count;i++)
+    {
+        Json::Value cur_fi;
+
+        cur_fi["index"]=i;
+        cur_fi["name"]=to_u8(fi->name).c_str();
+        cur_fi["type"]=to_u8(font_type_string[(size_t)fi->type]).c_str();
+
+        JSON_OUT_FI_UINT(charset)
+        JSON_OUT_FI_UINT(height)
+        JSON_OUT_FI_UINT(ascent)
+        JSON_OUT_FI_UINT(descent)
+        JSON_OUT_FI_UINT(internal_leading)
+        JSON_OUT_FI_UINT(external_leading)
+        JSON_OUT_FI_UINT(ave_char_width)
+        JSON_OUT_FI_UINT(max_char_width)
+        JSON_OUT_FI_UINT(weight)
+        JSON_OUT_FI_UINT(overhang)
+        JSON_OUT_FI_UINT(digitized_aspect_x)
+        JSON_OUT_FI_UINT(digitized_aspect_y)
+        JSON_OUT_FI_UINT(first_char)
+        JSON_OUT_FI_UINT(last_char)
+        JSON_OUT_FI_UINT(default_char)
+        JSON_OUT_FI_UINT(break_char)
+        JSON_OUT_FI_BOOL(italic)
+        JSON_OUT_FI_BOOL(underlined)
+        JSON_OUT_FI_BOOL(struck_out)
+        JSON_OUT_FI_UINT(pitch_and_family)
+
+        font_list.append(cur_fi);
+
+        ++fi;
+    }
+
+    root["font_list"]=font_list;
+
+    OSString error_info;
+    SaveJson(root,OS_TEXT("FontList.json"),error_info);
+}
+
+void OutputCSV(const FontInfoList &fi_list)
+{
+    io::FileOutputStream fos;
+
+    if(!fos.CreateTrunc(OS_TEXT("FontList.csv")))
+        return;
+
+    io::TextOutputStream *tos=new io::UTF16LETextOutputStream(&fos);
+
+    tos->WriteBOM();
+
+    OSString str=OS_TEXT("index,name,type,charset,height,ascent,descent,internal_leading,external_leading,ave_char_width,max_char_width,weight,overhang,digitized_aspect_x,digitized_aspect_y,first_char,last_char,default_char,break_char,italic,underlined,struck_out,pitch_and_family");
+
+    tos->WriteLine(str);
+
+    const uint count=fi_list.GetCount();
+    FontInfo *fi=fi_list.GetData();
+
+    for(uint i=0;i<count;i++)
+    {
+        str=OSString::numberOf(i)+OS_TEXT(",\"")+
+            OSString(fi->name)+OS_TEXT("\",\"")+
+            OSString(font_type_string[(size_t)fi->type])+OS_TEXT("\",")+
+            OSString::numberOf(fi->charset)+OS_TEXT(",")+
+            OSString::numberOf(fi->height)+OS_TEXT(",")+
+            OSString::numberOf(fi->ascent)+OS_TEXT(",")+
+            OSString::numberOf(fi->descent)+OS_TEXT(",")+
+            OSString::numberOf(fi->internal_leading)+OS_TEXT(",")+
+            OSString::numberOf(fi->external_leading)+OS_TEXT(",")+
+            OSString::numberOf(fi->ave_char_width)+OS_TEXT(",")+
+            OSString::numberOf(fi->max_char_width)+OS_TEXT(",")+
+            OSString::numberOf(fi->weight)+OS_TEXT(",")+
+            OSString::numberOf(fi->overhang)+OS_TEXT(",")+
+            OSString::numberOf(fi->digitized_aspect_x)+OS_TEXT(",")+
+            OSString::numberOf(fi->digitized_aspect_y)+OS_TEXT(",")+
+            OSString::numberOf(fi->first_char)+OS_TEXT(",")+
+            OSString::numberOf(fi->last_char)+OS_TEXT(",")+
+            OSString::numberOf(fi->default_char)+OS_TEXT(",")+
+            OSString::numberOf(fi->break_char)+OS_TEXT(",")+
+            OSString::numberOf(fi->italic)+OS_TEXT(",")+
+            OSString::numberOf(fi->underlined)+OS_TEXT(",")+
+            OSString::numberOf(fi->struck_out)+OS_TEXT(",")+
+            OSString::numberOf(fi->pitch_and_family);
+
+        tos->WriteLine(str);
+        ++fi;
+    }
+
+    delete tos;
+    fos.Close();
+}
+
+void main()
+{
+    FontInfoList fi_list;
+
+    EnumOSFonts(&fi_list);
+
+    const uint count=fi_list.GetCount();
+
+    std::cout<<"os had "<<count<<" fonts"<<std::endl<<std::endl;
+
+    OutputJson(fi_list);
+    OutputCSV(fi_list);
+}
\ No newline at end of file