diff --git a/inc/hgl/log/Log.h b/inc/hgl/log/Log.h
new file mode 100644
index 0000000..691f8c8
--- /dev/null
+++ b/inc/hgl/log/Log.h
@@ -0,0 +1,72 @@
+#pragma once
+
+#include<hgl/platform/Platform.h>
+#include<hgl/type/String.h>
+#include<hgl/SourceCodeLocation.h>
+#include<hgl/log/LogInfo.h>
+#include<cstdio>
+#include<cwchar>
+#include<cstdarg>
+
+namespace hgl
+{
+    constexpr const size_t LOG_TMP_BUFFER_SIZE=4096;
+
+    /**
+    * Android风格的日志输出类
+    */
+    class LogOutput
+    {
+        char    tmp_fmt     [LOG_TMP_BUFFER_SIZE];
+        u8char  tmp_fmt_u8  [LOG_TMP_BUFFER_SIZE];
+        u16char tmp_fmt_u16 [LOG_TMP_BUFFER_SIZE];
+
+    public:
+
+        LogOutput()=default;
+        virtual ~LogOutput()=default;
+
+    public:
+
+        void output(LogLevel level,const char *     str,const int len){logger::Log(level,(u8char *)str,len);}
+        void output(LogLevel level,const u8char *   str,const int len){logger::Log(level,(u8char *)str,len);}
+        void output(LogLevel level,const u16char *  str,const int len){logger::Log(level,(u16char *)str,len);}
+
+    #define DEFINE_LOG_OUTPUT_CHAR(ch,level) \
+        \
+        void ch(const char *     str,const int len  ){output(LogLevel::level,   str,len);} \
+        void ch(const char *     str                ){ch(str,strlen(str));}   \
+        void ch(const AnsiString &      str         ){ch(str.c_str(),str.GetLength());}   \
+        void ch(const AnsiStringView &  sv          ){ch(sv.c_str(),sv.GetLength());}
+
+    #define DEFINE_LOG_OUTPUT_CHAR8(ch,level) \
+        \
+        void ch(const u8char *   str,const int len  ){output(LogLevel::level,   str,len);} \
+        void ch(const u8char *   str                ){ch(str,strlen(str));}   \
+        void ch(const U8String &    str             ){ch(str.c_str(),str.GetLength());}   \
+        void ch(const U8StringView &sv              ){ch(sv.c_str(),sv.GetLength());}
+
+    #define DEFINE_LOG_OUTPUT_CHAR16(ch,level) \
+        \
+        void ch(const u16char *  str,const int len  ){output(LogLevel::level,   str,len);} \
+        void ch(const u16char *  str                ){ch(str,strlen(str));}   \
+        void ch(const U16String &    str            ){ch(str.c_str(),str.GetLength());}   \
+        void ch(const U16StringView &sv             ){ch(sv.c_str(),sv.GetLength());}
+
+    #ifdef HGL_SUPPORT_CHAR8_T
+        #define DEFINE_LOG_OUTPUT(ch,level) DEFINE_LOG_OUTPUT_CHAR(ch,level)    \
+                                            DEFINE_LOG_OUTPUT_CHAR8(ch,level)   \
+                                            DEFINE_LOG_OUTPUT_CHAR16(ch,level)
+    #else
+        #define DEFINE_LOG_OUTPUT(ch,level) DEFINE_LOG_OUTPUT_CHAR(ch,level)    \
+                                            DEFINE_LOG_OUTPUT_CHAR16(ch,level)
+    #endif//HGL_SUPPORT_CHAR8_T
+        
+        DEFINE_LOG_OUTPUT(v,Verbose)
+        DEFINE_LOG_OUTPUT(i,Info)
+        DEFINE_LOG_OUTPUT(h,Hint)
+        DEFINE_LOG_OUTPUT(w,Warning)
+        DEFINE_LOG_OUTPUT(e,Error)
+        DEFINE_LOG_OUTPUT(fe,FatalError)
+    };//class LogOutput
+}//namespace hgl
diff --git a/inc/hgl/log/LogInfo.h b/inc/hgl/log/LogInfo.h
index 3f398b5..2440d24 100644
--- a/inc/hgl/log/LogInfo.h
+++ b/inc/hgl/log/LogInfo.h
@@ -4,21 +4,12 @@
 #include<iostream>
 #include<hgl/CodePage.h>
 #include<hgl/SourceCodeLocation.h>
+#include<hgl/log/LogLevel.h>
 
 namespace hgl
 {
     namespace logger
-    {
-        enum class LogLevel
-        {
-            Verbose,
-            Info,
-            Hint,
-            Warning,
-            Error,
-            FatalError,
-        };//enum class LogLevel
-        
+    {        
         bool InitLogger(const OSString &app_name);
         
         void Log(LogLevel level,const u16char *str,int size);
diff --git a/inc/hgl/log/LogLevel.h b/inc/hgl/log/LogLevel.h
new file mode 100644
index 0000000..7bfe830
--- /dev/null
+++ b/inc/hgl/log/LogLevel.h
@@ -0,0 +1,14 @@
+#pragma once
+
+namespace hgl
+{
+    enum class LogLevel
+    {
+        Verbose,
+        Info,
+        Hint,
+        Warning,
+        Error,
+        FatalError,
+    };//enum class LogLevel
+}//namespace hgl
diff --git a/inc/hgl/type/StringView.h b/inc/hgl/type/StringView.h
index 2fb7db4..bb6e688 100644
--- a/inc/hgl/type/StringView.h
+++ b/inc/hgl/type/StringView.h
@@ -46,7 +46,9 @@ namespace hgl
 
         ~StringView()=default;
 
-        const char *c_str()const{return str_data;}
+        operator const T *()const{return str_data;}
+
+        const T *c_str()const{return str_data;}
         const int length()const{return str_length;}
         const int GetLength()const{return str_length;}