diff --git a/inc/hgl/filesystem/Filename.h b/inc/hgl/filesystem/Filename.h
index c9d1683..0b02f94 100644
--- a/inc/hgl/filesystem/Filename.h
+++ b/inc/hgl/filesystem/Filename.h
@@ -132,7 +132,7 @@ namespace hgl
             {
                 if(filename.GetFirstChar()==directory_separator_char)           //开头有分隔符
                 {
-                    fullname.SetString(pathname.c_str(),pathname.Length()-1);   //少取一个字符
+                    fullname.fromString(pathname.c_str(),pathname.Length()-1);   //少取一个字符
                 }
                 else
                 {
diff --git a/inc/hgl/type/String.h b/inc/hgl/type/String.h
index c487b1a..1e58e29 100644
--- a/inc/hgl/type/String.h
+++ b/inc/hgl/type/String.h
@@ -1,8 +1,7 @@
-#ifndef HGL_TYPE_BASE_STRING_INCLUDE
-#define HGL_TYPE_BASE_STRING_INCLUDE
+#pragma once
 
+#include<hgl/type/StringView.h>
 #include<hgl/type/StringInstance.h>
-#include<hgl/io/InputStream.h>
 #include<hgl/Comparator.h>
 #include<hgl/type/Smart.h>
 
@@ -40,7 +39,7 @@ namespace hgl
          */
         String(const T *str)
         {
-            SetString(str);
+            fromString(str);
         }
 
         /**
@@ -50,7 +49,12 @@ namespace hgl
          */
         String(const T *str,int len)
         {
-            SetString(str,len);
+            fromString(str,len);
+        }
+
+        String(const StringView<T> &sv)
+        {
+            fromString(sv.c_str(),sv.length());
         }
 
         /**
@@ -65,24 +69,6 @@ namespace hgl
             return String<T>(si);
         }
 
-        String(io::InputStream *is,int len=0)
-        {
-            if(len<=0)
-                len=is->Available();
-
-            if(len<=0)
-                return;
-
-            len/=sizeof(T);
-
-            T *str=new T[len+1];
-
-            len=is->Read(str,len*sizeof(T));
-
-            str[len]=0;
-            SetInstance(str,len);
-        }
-
         String(const char)=delete;
 
         static String<T> charOf(const T &ch)
@@ -273,7 +259,7 @@ namespace hgl
          * @param str 字符串内容，在len<0的情况下，需以0为结尾
          * @param len 字符串长度，如果str以0为结尾，可以为负值，将启用自动计算长度
          */
-        void SetString(const T *str,int len=-1)
+        void fromString(const T *str,int len=-1)
         {
             if(!str||!*str||!len)       //len=-1为自检测,为0不处理
             {
@@ -290,7 +276,7 @@ namespace hgl
          * @param str 字符串内容，在len<0的情况下，需以0为结尾
          * @param len 字符串长度
          */
-        void SetInstance(T *str,const uint len)
+        void fromInstance(T *str,const uint len)
         {
             if(!str||!*str)
             {
@@ -304,12 +290,12 @@ namespace hgl
 
         void Strcpy(const T *str,int len=-1)
         {
-            SetString(str,len);
+            fromString(str,len);
         }
 
         void StrcpyInstance(T *str,int len=-1)
         {
-            SetInstance(str,len);
+            fromInstance(str,len);
         }
 
         /**
@@ -464,7 +450,7 @@ namespace hgl
             }
             else
             {
-                SetString(str,len);
+                fromString(str,len);
                 return(true);
             }
         }
@@ -1241,6 +1227,16 @@ namespace hgl
             SelfClass &operator +=  (const SelfClass &str){Strcat(str);return(*this);}
             SelfClass &operator <<  (const SelfClass &str){return(operator+=(str));}
 
+            operator StringView<T> ()const
+            {
+                return StringView<T>(c_str(),Length());
+            }
+
+            operator const StringView<T> &()const
+            {
+                return StringView<T>(c_str(),Length());
+            }
+
             static SelfClass ComboString(const T *str1,int len1,const T *str2,int len2)
             {
                 if(!str1||len1<=0)
@@ -1424,4 +1420,3 @@ namespace hgl
         hgl::strcat(dst,max_count,src.c_str(),src.Length());
     }
 }//namespace hgl
-#endif//HGL_TYPE_BASE_STRING_INCLUDE
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index e43ed8b..0e838f7 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -107,6 +107,7 @@ SOURCE_GROUP("Datatype\\Color\\Source Files" FILES ${COLOR_SOURCE_FILES})
 
 ##Text--------------------------------------------------------
 SET(STRING_HEADER_FILES ${TYPE_INCLUDE_PATH}/String.h
+                        ${TYPE_INCLUDE_PATH}/StringView.h
                         ${TYPE_INCLUDE_PATH}/StringInstance.h
                         ${TYPE_INCLUDE_PATH}/StringList.h
                         ${TYPE_INCLUDE_PATH}/SplitString.h
diff --git a/src/Text/LoadString.cpp b/src/Text/LoadString.cpp
index e766d8c..71220b3 100644
--- a/src/Text/LoadString.cpp
+++ b/src/Text/LoadString.cpp
@@ -17,7 +17,7 @@ namespace hgl
 
         if(size>=3&&data[0]==0xEF&&data[1]==0xBB&&data[2]==0xBF)            //utf8
         {
-            full_text.SetString((u8char *)(data+3),size-3);
+            full_text.fromString((u8char *)(data+3),size-3);
             char_count=size-3;
         }
         else
@@ -75,7 +75,7 @@ namespace hgl
                 char_count=to_utf8(cs,&str,(char *)data,size);
 #endif//
 
-            full_text.SetString(str,char_count);
+            full_text.fromString(str,char_count);
             delete[] str;
         }
 
@@ -130,7 +130,7 @@ namespace hgl
 
         if((uchar *)str>=data&&(uchar *)str<=data+size)                      //如果str的地址在data的范围内
         {
-            full_text.SetString(str,char_count);
+            full_text.fromString(str,char_count);
         }
         else
         {
@@ -156,7 +156,7 @@ namespace hgl
 #endif//
             }
 
-            full_text.SetString(str,char_count);
+            full_text.fromString(str,char_count);
 
             delete[] str;
         }