diff --git a/test/pch.h b/test/pch.h
index 950eb87..a08c429 100644
--- a/test/pch.h
+++ b/test/pch.h
@@ -124,9 +124,15 @@ static SQfopenFunc* SQfopen = (SQfopenFunc*)0x1355DC0;
 //SQfread
 typedef int(SQfreadFunc)(void* buffer, int a, int b, void* file);
 static SQfreadFunc* SQfread = (SQfreadFunc*)0x1355DD0;
+//SQwrite
+typedef int(SQwriteFunc)(void* buffer, int a, int b, void* file);
+static SQwriteFunc* SQwrite = (SQwriteFunc*)0x1355DE0;
 //SQfseek
 typedef int(SQfseekFunc)(void* buffer, int a, int b);
 static SQfseekFunc* SQfseek = (SQfseekFunc*)0x1355DF0;
+//SQftell
+typedef int(SQftellFunc)(void* file);
+static SQftellFunc* SQftell = (SQftellFunc*)0x1355E50;
 //SQ_File_read
 typedef int(SQ_File_readFunc)(void* file, void* afile, int a);
 static SQ_File_readFunc* SQ_File_read = (SQ_File_readFunc*)0x1356090;
diff --git a/test/test.vcxproj b/test/test.vcxproj
index b8941ac..2f56e9f 100644
--- a/test/test.vcxproj
+++ b/test/test.vcxproj
@@ -112,7 +112,7 @@
       <PrecompiledHeader>Use</PrecompiledHeader>
       <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
-      <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
diff --git a/test/函数块.cpp b/test/函数块.cpp
index 55780a9..17b369b 100644
--- a/test/函数块.cpp
+++ b/test/函数块.cpp
@@ -241,7 +241,6 @@ int GetEquAddr(int addr)
 static int SQloadfile(uint32_t v, const wchar_t* filename, bool printerror)
 {
     void* file = SQfopen(filename, L"rb");
-    //void* file = (void*)"IIIAAA <- 66487";
     int ret;
     unsigned short us;
     unsigned char uc;
@@ -284,6 +283,18 @@ static int SQloadfile(uint32_t v, const wchar_t* filename, bool printerror)
             default: SQfseek(file, 0, 2); break; // ascii
             }
 
+            const char *add = "newstr";
+            int prevpos = SQftell(file);
+            SQfseek(file, 0, 1);
+            int length = SQftell(file);
+            SQfseek(file, prevpos, 2);
+            char temp[256];
+            SQwrite(&add, 1, sizeof(add), file);
+            SQfread(&temp, length + 10, sizeof(temp), file);
+            std::cout << temp << std::endl;
+
+
+
             if (SQ_Compile(v, func, file, filename, printerror) >= 0)
             {
                 SQ__Fclose(file);