diff --git a/demo.cpp b/demo.cpp
new file mode 100644
index 0000000..bfefabd
--- /dev/null
+++ b/demo.cpp
@@ -0,0 +1,10 @@
+#include <iostream>
+#include <stdint.h>
+#include <fstream>
+using namespace std;
+using namespace CPPCOMMON;
+
+int main()
+{
+    return 0;
+}
diff --git a/main.cpp b/main.cpp
deleted file mode 100644
index 6141e56..0000000
--- a/main.cpp
+++ /dev/null
@@ -1,29 +0,0 @@
-#include <iostream>
-#include <iconv.h>
-#include <stdint.h>
-#include <fstream>
-#include <memory.h>
-#include "cppcommon/str_functs.h"
-using namespace std;
-using namespace CPPCOMMON;
-
-int main()
-{
-    ifstream ifile("dict.txt");
-    string line;
-    while(getline(ifile, line))
-    {
-        uint16_t strbuf[1024];
-
-        size_t unilen = utf8ToUnicode(line.c_str(), line.size(), strbuf);
-        for(int i = 0; i < unilen; i++)
-        {
-            // printf("%x\n", strbuf[i]);
-        }
-        char utf8str[512]={0};
-        unicodeToUtf8(strbuf, unilen, utf8str);
-        //cout<<strlen(utf8str);
-        cout<<utf8str<<endl;
-    }
-    return 0;
-}