diff --git a/test/demo.cpp b/test/demo.cpp
deleted file mode 100644
index 63753b32..00000000
--- a/test/demo.cpp
+++ /dev/null
@@ -1,80 +0,0 @@
-#include "cppjieba/Jieba.hpp"
-
-using namespace std;
-
-const char* const DICT_PATH = "../dict/jieba.dict.utf8";
-const char* const HMM_PATH = "../dict/hmm_model.utf8";
-const char* const USER_DICT_PATH = "../dict/user.dict.utf8";
-const char* const IDF_PATH = "../dict/idf.utf8";
-const char* const STOP_WORD_PATH = "../dict/stop_words.utf8";
-
-int main(int argc, char** argv) {
-  cppjieba::Jieba jieba(DICT_PATH,
-        HMM_PATH,
-        USER_DICT_PATH,
-        IDF_PATH,
-        STOP_WORD_PATH);
-  vector<string> words;
-  vector<cppjieba::Word> jiebawords;
-  string s;
-  string result;
-
-  s = "他来到了网易杭研大厦";
-  cout << s << endl;
-  cout << "[demo] Cut With HMM" << endl;
-  jieba.Cut(s, words, true);
-  cout << limonp::Join(words.begin(), words.end(), "/") << endl;
-
-  cout << "[demo] Cut Without HMM " << endl;
-  jieba.Cut(s, words, false);
-  cout << limonp::Join(words.begin(), words.end(), "/") << endl;
-
-  s = "我来到北京清华大学";
-  cout << s << endl;
-  cout << "[demo] CutAll" << endl;
-  jieba.CutAll(s, words);
-  cout << limonp::Join(words.begin(), words.end(), "/") << endl;
-
-  s = "小明硕士毕业于中国科学院计算所，后在日本京都大学深造";
-  cout << s << endl;
-  cout << "[demo] CutForSearch" << endl;
-  jieba.CutForSearch(s, words);
-  cout << limonp::Join(words.begin(), words.end(), "/") << endl;
-
-  cout << "[demo] Insert User Word" << endl;
-  jieba.Cut("男默女泪", words);
-  cout << limonp::Join(words.begin(), words.end(), "/") << endl;
-  jieba.InsertUserWord("男默女泪");
-  jieba.Cut("男默女泪", words);
-  cout << limonp::Join(words.begin(), words.end(), "/") << endl;
-
-  cout << "[demo] CutForSearch Word With Offset" << endl;
-  jieba.CutForSearch(s, jiebawords, true);
-  cout << jiebawords << endl;
-
-  cout << "[demo] Lookup Tag for Single Token" << endl;
-  const int DemoTokenMaxLen = 32;
-  char DemoTokens[][DemoTokenMaxLen] = {"拖拉机", "CEO", "123", "。"};
-  vector<pair<string, string> > LookupTagres(sizeof(DemoTokens) / DemoTokenMaxLen);
-  vector<pair<string, string> >::iterator it;
-  for (it = LookupTagres.begin(); it != LookupTagres.end(); it++) {
-	it->first = DemoTokens[it - LookupTagres.begin()];
-	it->second = jieba.LookupTag(it->first);
-  }
-  cout << LookupTagres << endl;
-
-  cout << "[demo] Tagging" << endl;
-  vector<pair<string, string> > tagres;
-  s = "我是拖拉机学院手扶拖拉机专业的。不用多久，我就会升职加薪，当上CEO，走上人生巅峰。";
-  jieba.Tag(s, tagres);
-  cout << s << endl;
-  cout << tagres << endl;
-
-  cout << "[demo] Keyword Extraction" << endl;
-  const size_t topk = 5;
-  vector<cppjieba::KeywordExtractor::Word> keywordres;
-  jieba.extractor.Extract(s, keywordres, topk);
-  cout << s << endl;
-  cout << keywordres << endl;
-  return EXIT_SUCCESS;
-}