diff --git a/inc/hgl/util/plist/LoadPAttrib.h b/inc/hgl/util/plist/LoadPAttrib.h
new file mode 100644
index 0000000..8af5881
--- /dev/null
+++ b/inc/hgl/util/plist/LoadPAttrib.h
@@ -0,0 +1,31 @@
+#pragma once
+
+#include<hgl/util/plist/PAttrib.h>
+#include<hgl/io/LoadStringList.h>
+
+namespace hgl
+{
+    using namespace io;
+
+
+    /**
+     * 从文本文件中加载PList
+     * @param filename 文件名
+     * @param pa_map 属性列表
+     * @return 是否加载成功
+     */
+    template<typename C> static int LoadFromTextFile(const OSString &filename,PAttribMap<C> &pa_map)
+    {
+        StringList<C> sl;
+
+        if(LoadStringListFromTextFile(sl,filename)<=0)
+            return(false);
+
+        int n=sl.GetCount();
+
+        while(n--)
+            Add(pa_map,sl[n]);
+
+        return(true);
+    }
+}//namespace hgl
diff --git a/inc/hgl/util/plist/PAttrib.h b/inc/hgl/util/plist/PAttrib.h
index 4fa5c2a..db06498 100644
--- a/inc/hgl/util/plist/PAttrib.h
+++ b/inc/hgl/util/plist/PAttrib.h
@@ -1,7 +1,7 @@
 #pragma once
 
-#include<hgl/type/BaseString.h>
-#include<hgl/type/StringList.h>
+#include<hgl/type/String.h>
+#include<hgl/io/LoadStringList.h>
 #include<hgl/type/Map.h>
 #include<hgl/io/FileOutputStream.h>
 #include<hgl/io/TextOutputStream.h>
@@ -17,21 +17,21 @@ namespace hgl
         PAttribBase()=default;
         virtual ~PAttribBase()=default;
 
-        virtual const bool ParseFromString(const BaseString<C> &str)=0;
-        virtual BaseString<C> MakeToString()const=0;
+        virtual const bool ParseFromString(const String<C> &str)=0;
+        virtual String<C> MakeToString()const=0;
     };
 
     template<typename C,typename T> class PAttrib:public PAttribBase<C>
     {
     protected:
 
-        BaseString<C> name;
+        String<C> name;
         T value;
         T default_value;
 
     public:
 
-        PAttrib(const BaseString<C> &n,const T &v)
+        PAttrib(const String<C> &n,const T &v)
         {
             name=n;
             value=v;
@@ -40,8 +40,8 @@ namespace hgl
 
         virtual ~PAttrib()=default;
 
-        virtual const bool ParseFromString(const BaseString<C> &str)=0;
-        virtual BaseString<C> MakeToString()const=0;
+        virtual const bool ParseFromString(const String<C> &str)=0;
+        virtual String<C> MakeToString()const=0;
 
         virtual const T &Get(){return value;}
         virtual void Set(const T &v){value=v;}
@@ -55,7 +55,7 @@ namespace hgl
 
     public:
 
-        PNumberAttrib(const BaseString<C> &n,const T &dv,const T &min_v,const T &max_v):PAttrib<C,T>(n,dv)
+        PNumberAttrib(const String<C> &n,const T &dv,const T &min_v,const T &max_v):PAttrib<C,T>(n,dv)
         {
             min_value=min_v;
             max_value=max_v;
@@ -63,7 +63,7 @@ namespace hgl
 
         virtual ~PNumberAttrib()=default;
 
-        const bool ParseFromString(const BaseString<C> &str) override
+        const bool ParseFromString(const String<C> &str) override
         {
             if(ToNumber(str,this->value))
             {
@@ -75,16 +75,57 @@ namespace hgl
             return(false);
         }
 
-        BaseString<C> MakeToString() const override
+        String<C> MakeToString() const override
         {
-            return BaseString<C>(this->value);
+            return String<C>::numberOf(this->value);
         }
     };//class PNumberAttrib:public PAttrib<C,uint>
 
     template<typename C> using PIntAttrib   =PNumberAttrib<C,int    >;
     template<typename C> using PUintAttrib  =PNumberAttrib<C,uint   >;
-    template<typename C> using PFloatAttrib =PNumberAttrib<C,float  >;
-    template<typename C> using PDoubleAttrib=PNumberAttrib<C,double >;
+
+    template<typename C,typename T> class PFloatNumberAttrib:public PAttrib<C,T>
+    {
+    protected:
+
+        T min_value,max_value;
+
+        uint frac;
+
+    public:
+
+        PFloatNumberAttrib(const String<C> &n,const T &dv,const T &min_v,const T &max_v,const int f):PAttrib<C,T>(n,dv)
+        {
+            min_value=min_v;
+            max_value=max_v;
+
+            frac=f;
+        }
+
+        virtual ~PFloatNumberAttrib()=default;
+
+        const bool ParseFromString(const String<C> &str) override
+        {
+            if(ToNumber(str,this->value))
+            {
+                if(this->value>=min_value&&this->value<=max_value)
+                    return(true);
+            }
+
+            this->value=this->default_value;
+            return(false);
+        }
+
+        void SetFrac(uint f){frac=f;}
+
+        String<C> MakeToString() const override
+        {
+            return String<C>::floatOf(this->value,frac);
+        }
+    };//class PFloatNumberAttrib:public PAttrib<C,uint>
+
+    template<typename C> using PFloatAttrib =PFloatNumberAttrib<C,float  >;
+    template<typename C> using PDoubleAttrib=PFloatNumberAttrib<C,double >;
 
     template<typename C> class PBoolAttrib:public PAttrib<C,bool>
     {
@@ -92,7 +133,7 @@ namespace hgl
 
         using PAttrib<C,bool>::PAttrib;
 
-        const bool ParseFromString(const BaseString<C> &str)
+        const bool ParseFromString(const String<C> &str)
         {
             if(str.ToBool(this->value))
                 return(true);
@@ -101,36 +142,87 @@ namespace hgl
             return(false);
         }
 
-        BaseString<C> MakeToString() const override
+        String<C> MakeToString() const override
         {
             return(this->value?"true":"false");
         }
     };
 
-    template<typename C> class PStringAttrib:public PAttrib<C,BaseString<C>>
+    template<typename C> class PStringAttrib:public PAttrib<C,String<C>>
     {
     public:
 
-        using PAttrib<C,BaseString<C>>::PAttrib;
+        using PAttrib<C,String<C>>::PAttrib;
 
-        const bool ParseFromString(const BaseString<C> &str) override
+        const bool ParseFromString(const String<C> &str) override
         {
             this->value=str;
             return(true);
         }
 
-        BaseString<C> MakeToString() const override
+        String<C> MakeToString() const override
         {
             return this->value;
         }
     };
 
+    template<typename C> using PAttribMap=Map<String<C>,PAttribBase<C> *>;
+
+    /**
+     * 向属性列表中写入一个属性
+     */
+    template<typename C> static bool Add(PAttribMap<C> &pa_map,const String<C> &str)
+    {
+        String<C> name;
+        C *value;
+        int off;
+
+        if(str.Length()<2)return(false);
+
+        if(((off=str.FindChar(C('\t')))==-1)
+         &&((off=str.FindChar(C(' '))) ==-1)
+         &&((off=str.FindChar(C('='))) ==-1)
+         &&((off=str.FindChar(C(':'))) ==-1))
+            return(false);
+
+        name.Strcpy(str,off);
+        off++;
+
+        value=str.c_str()+off;
+
+        while(true)
+        {
+            if(*value == C('\t')
+             ||*value == C('=')
+             ||*value == C(' ')
+             ||*value == C(':'))
+            {
+                value++;
+                continue;
+            }
+
+            break;
+        }
+
+        PAttribBase<C> *attr=GetListObject(pa_map,name);
+
+        if(attr)
+            attr->ParseFromString(value);
+
+        return(true);
+    }
+
     template<typename C> class PAttribSet
     {
-        using PString=BaseString<C>;
+        using PString=String<C>;
         using PStringList=StringList<PString>;
 
-        Map<BaseString<C>,PAttribBase<C> *> pa_map;
+        PAttribMap<C> pa_map;
+
+    public:
+
+        operator        PAttribMap<C> &()       {return pa_map;}
+        operator const  PAttribMap<C> &()const  {return pa_map;}
 
     public:
 
@@ -144,6 +236,25 @@ namespace hgl
             return obj;
         }
 
+        /**
+        * 创建一个浮点数属性
+        * @param name 属性名称
+        * @param dv 默认值
+        * @param min_v 最小值
+        * @param max_v 最大值
+        * @param frac 小数点后位数
+        * @return 属性对象
+        */
+        template<typename T>
+        PFloatNumberAttrib<C,T> *CreateFloatAttrib(const PString &name,const T &dv,const T &min_v,const T &max_v,const int frac)
+        {
+            PFloatNumberAttrib<C,T> *obj=new PFloatNumberAttrib<C,T>(name,dv,min_v,max_v,frac);
+
+            pa_map.Add(name,obj);
+
+            return obj;
+        }
+
         PBoolAttrib<C> *CreateBoolAttrib(const PString &name,const bool &dv)
         {
             PBoolAttrib<C> *obj=new PBoolAttrib<C>(name,dv);
@@ -169,110 +280,22 @@ namespace hgl
             return pa_map.Add(name,attr);
         }
 
-        PAttribBase<C> *Get(const PString &name){return GetObject(pa_map,name);}
+        bool Add(const PString &str)
+        {
+            return Add(pa_name,str);
+        }
+
+        PAttribBase<C> *Get(const PString &name){return GetListObject(pa_map,name);}
 
         void Delete(const PString &name){pa_map.DeleteByKey(name);}
 
         void Clear(){pa_map.Clear();}
         void ClearData(){pa_map.ClearData();}
 
-        void Enum(void (*enum_func)(const BaseString<C> &key,PAttribBase<C> *value))
+        void Enum(void (*enum_func)(const String<C> &key,PAttribBase<C> *value))
         {
             pa_map.Enum(enum_func);
         };
-
-    public:
-
-        /**
-         * 保存到文本文件中
-         */
-        template<ByteOrderMask BOM>
-        bool SaveToTextFile(const OSString &filename,const PString &gap_ch=PString("\t"))        ///<保存列表到文件
-        {
-            FileOutputStream fos;
-            EndianTextOutputStream<BOM> tos(&fos);
-
-            if(!fos.CreateTrunc(filename))return(false);
-
-            tos.WriteBOM();
-
-            const int count=pa_map.GetCount();
-            auto **pa_obj=pa_map.GetDataList();
-            for(int i=0;i<count;i++)
-            {
-                tos.WriteString((*pa_obj)->left);
-                tos.WriteString(gap_ch);
-                tos.WriteString((*pa_obj)->right->MakeToString());
-                tos.WriteLineEnd();
-
-                ++pa_obj;
-            }
-
-            return(true);
-        }
-
-    private:
-
-        bool Add(const PString &str)                                                  ///<向列表中增加一项
-        {
-            PString name;
-            C *value;
-            int off;
-
-            if(str.Length()<2)return(false);
-
-            if(((off=str.FindChar(C('\t')))==-1)
-             &&((off=str.FindChar(C(' '))) ==-1)
-             &&((off=str.FindChar(C('='))) ==-1)
-             &&((off=str.FindChar(C(':'))) ==-1))
-                return(false);
-
-            name.Strcpy(str,off);
-            off++;
-
-            value=str.c_str()+off;
-
-            while(true)
-            {
-                if(*value == C('\t')
-                 ||*value == C('=')
-                 ||*value == C(' ')
-                 ||*value == C(':'))
-                {
-                    value++;
-                    continue;
-                }
-
-                break;
-            }
-
-            PAttribBase<C> *attr=Get(name);
-
-            if(attr)
-                attr->ParseFromString(value);
-
-            return(true);
-        }
-
-    public:
-
-        /**
-         * 从文本文件中加载
-         */
-        virtual bool LoadFromTextFile(const OSString &filename)                                         ///<从文件中加载列表
-        {
-            PStringList sl;
-
-            if(LoadStringListFromTextFile(sl,filename)<=0)
-                return(false);
-
-            int n=sl.GetCount();
-
-            while(n--)
-                Add(sl[n]);
-
-            return(true);
-        }
     };//template<typename C> class PAttribSet
 
     using UTF8PAttribSet    =PAttribSet<char>;
diff --git a/inc/hgl/util/plist/PList.h b/inc/hgl/util/plist/PList.h
deleted file mode 100644
index 65ffccc..0000000
--- a/inc/hgl/util/plist/PList.h
+++ /dev/null
@@ -1,128 +0,0 @@
-#ifndef HGL_PLIST_INCLUDE
-#define HGL_PLIST_INCLUDE
-
-#include<hgl/type/Map.h>
-#include<hgl/type/LoadStringList.h>
-#include<hgl/io/FileOutputStream.h>
-#include<hgl/io/TextOutputStream.h>
-namespace hgl
-{
-    using namespace io;
-
-    /**
-    * 属性列表,类似INI的管理类
-    */
-    template<typename C> class PList:public Map<String<C>,String<C>>                        ///属性列表
-    {
-    public:
-
-        using PString=String<C>;
-        using PStringList=StringList<C>;
-        using PMap=Map<PString,PString>;
-
-    protected:
-
-        void ReadData(const PStringList &sl)
-        {
-            int n=sl.GetCount();
-
-            while(n--)
-                Add(sl[n]);
-        }
-
-    public:
-
-        virtual ~PList()=default;
-
-        virtual bool Add(const PString &key)                                                  ///<向列表中增加一项
-        {
-            PString name;
-            C *value;
-            int off;
-
-            if(key.Length()<2)return(false);
-
-            if(((off=key.FindChar(C('\t')))==-1)
-             &&((off=key.FindChar(C(' ' )))==-1)
-             &&((off=key.FindChar(C('=' )))==-1)
-             &&((off=key.FindChar(C(':' )))==-1))
-                return(false);
-
-            name.Strcpy(key,off);
-            off++;
-
-            value=key.c_str()+off;
-
-            while(true)
-            {
-                if(*value == C('\t')
-                ||*value == C('=')
-                ||*value == C(' ')
-                ||*value == C(':'))
-                    value++;
-                else
-                {
-                    PString str=value;
-
-                    PMap::Add(name,str);
-
-                    return(true);
-                }
-            }
-        }//bool PList::Add
-
-        virtual bool Add(const PString &key,const PString &value)                                   ///<向列表中增加一项
-        {
-            return PMap::Add(key,value);
-        }
-
-        /**
-         * 从文本文件中加载
-         */
-        virtual bool LoadFromTextFile(const OSString &filename,const CharSet &cs=OSCharSet)         ///<从文件中加载列表
-        {
-            PStringList sl;
-
-            if(LoadStringListFromTextFile(sl,filename,cs)<=0)
-                return(false);
-
-            ReadData(sl);
-
-            return(true);
-        }
-
-        /**
-        * 保存到文本文件中
-        */
-        template<ByteOrderMask BOM>
-        bool SaveToTextFile(const OSString &filename,const C &gap_ch='\t')             ///<保存列表到文件
-        {
-            FileOutputStream fos;
-            EndianTextOutputStream<BOM> tos(&fos);
-
-            if(!fos.CreateTrunc(filename))return(false);
-
-            PString gap_str=PString::charOf(gap_ch);
-
-            int n=this->data_list.GetCount();
-
-            tos.WriteBOM();
-
-            while(n--)
-            {
-                PString f,s;
-
-                if(GetBySerial(n,f,s))
-                    tos.WriteLine(f+gap_str+s);
-            }
-
-            return(true);
-        }
-    };//class PList
-
-    using UTF8PList =PList<char   >;
-    using UTF16PList=PList<u16char>;
-    using WidePList =PList<wchar_t>;
-    using OSPList   =PList<os_char>;
-}//namespace hgl
-#endif//HGL_PLIST_INCLUDE
diff --git a/inc/hgl/util/plist/SavePAttrib.h b/inc/hgl/util/plist/SavePAttrib.h
new file mode 100644
index 0000000..c4c3f0e
--- /dev/null
+++ b/inc/hgl/util/plist/SavePAttrib.h
@@ -0,0 +1,42 @@
+#pragma once
+
+#include<hgl/util/plist/PAttrib.h>
+#include<hgl/io/FileOutputStream.h>
+#include<hgl/io/TextOutputStream.h>
+
+namespace hgl
+{
+    using namespace io;
+
+    /**
+     * 保存PList到文本文件中
+     * @param filename 文件名
+     * @param pa_map 属性列表
+     * @param gap_ch 分隔符
+     * @return 保存的属性数量
+     */ 
+    template<typename C,ByteOrderMask BOM> static int SaveToTextFile(const OSString &filename,const PAttribMap<C> &pa_map,const String<C> &gap_ch=String<C>("\t"))
+    {
+        FileOutputStream fos;
+        EndianTextOutputStream<BOM> tos(&fos);
+
+        if(!fos.CreateTrunc(filename))return(-1);
+
+        tos.WriteBOM();
+
+        const int count=pa_map.GetCount();
+        auto **pa_obj=pa_map.GetDataList();
+
+        for(int i=0;i<count;i++)
+        {
+            tos.WriteString((*pa_obj)->key);
+            tos.WriteString(gap_ch);
+            tos.WriteString((*pa_obj)->value->MakeToString());
+            tos.WriteLineEnd();
+
+            ++pa_obj;
+        }
+
+        return(count);
+    }
+}//namespace hgl