diff --git a/memdb/Makefile b/memdb/Makefile
index e69de29..141e76d 100644
--- a/memdb/Makefile
+++ b/memdb/Makefile
@@ -0,0 +1,2 @@
+test: src/main.cpp src/main/memdb.cpp include/memdb.hpp
+	g++ src/main.cpp -o test.bin -I include/ -std=c++20 -O3 -g
\ No newline at end of file
diff --git a/memdb/include/memdb.hpp b/memdb/include/memdb.hpp
index e5528cc..6fc4964 100644
--- a/memdb/include/memdb.hpp
+++ b/memdb/include/memdb.hpp
@@ -4,6 +4,8 @@
 #include <unordered_map>
 #include <chrono>
 #include <queue>
+#include <set>
+#include <optional>
 
 
 
@@ -35,11 +37,15 @@ private:
     std::list <memdb_column> db;
     std::unordered_map <T, index_keys> keys;
     std::priority_queue <index_timestamp> time_touch;
+    std::multiset <index_timestamp> time_touch_;
     size_t __size = 0;
     int MAX_TIME = 60 * 10;       // 10分钟
     void flush();
     void update_queue();
 
+    // 内测版
+    void flush_();
+
 
 public:
     using key_t = T;
@@ -61,4 +67,11 @@ public:
     bool remove(key_t to_be_del_k);
     bool update(key_t to_be_udt_k, value_t udt_v, bool need_to_udt_timetouch=false);
     std::optional<U> search(key_t to_be_sch_k);
+
+    // 内测版
+    const std::multiset <index_timestamp>& get_time_touch_() const;
+    bool insert_(key_t to_be_ins_k, value_t ins_v);
+    bool remove_(key_t to_be_del_k);
+    bool update_(key_t to_be_udt_k, value_t udt_v, bool need_to_udt_timetouch=false);
+    std::optional<U> search_(key_t to_be_sch_k);
 };
\ No newline at end of file
diff --git a/memdb/src/main.cpp b/memdb/src/main.cpp
index e69de29..23e8a44 100644
--- a/memdb/src/main.cpp
+++ b/memdb/src/main.cpp
@@ -0,0 +1,13 @@
+#include <bits/stdc++.h>
+#include "main/memdb.cpp"
+using namespace std;
+Memdb<string,string> testdb(10);
+int main(){
+    testdb.insert_("key1","value1");
+    auto pack=testdb.search_("key1");
+    cout<<(pack==nullopt?"未找到":pack.value())<<endl;
+    this_thread::sleep_for(std::chrono::seconds(10));
+    auto pack2=testdb.search_("key1");
+    cout<<(pack2==nullopt?"未找到":pack2.value())<<endl;
+    return 0;
+}
\ No newline at end of file
diff --git a/memdb/src/main/memdb.cpp b/memdb/src/main/memdb.cpp
index 2c0d3b6..bdc7490 100644
--- a/memdb/src/main/memdb.cpp
+++ b/memdb/src/main/memdb.cpp
@@ -5,7 +5,7 @@
 template <typename T, typename U>
 
 bool Memdb <T, U>::index_timestamp::operator<(const index_timestamp& a) const {
-    return this -> item -> timestamp < a.item -> timestamp;
+    return this -> item -> timestamp > a.item -> timestamp;
 }
 
 
@@ -20,10 +20,9 @@ void Memdb <T, U>::flush() {
 
     while (now_time > it -> timestamp || it -> be_del == true) {
         if (it -> be_del != true) this -> __size--;
-        key_t to_be_del_k = it -> key;
-        this -> db.erase(it);
-        this -> keys.erase(to_be_del_k);
+        this -> keys.erase(it -> key);
 		this -> time_touch.pop();
+        this -> db.erase(it);
 
         if (this -> time_touch.empty() == true) {
             return;
@@ -94,6 +93,7 @@ const std::priority_queue <typename Memdb <T, U>::index_timestamp>& Memdb <T, U>
 }
 
 
+
 template <typename T, typename U>
 
 bool Memdb <T, U>::insert(key_t to_be_ins_k, value_t ins_v) {
@@ -173,3 +173,120 @@ std::optional<U> Memdb <T, U>::search(key_t to_be_sch_k){
     typename std::list <memdb_column>::iterator it = this -> keys[to_be_sch_k].item;
     return it -> value;
 }
+
+
+/*
+内测版
+*/
+
+
+template <typename T, typename U>
+
+void Memdb <T, U>::flush_() {
+    if (this -> time_touch_.empty() == true) {
+        return;
+    }
+    std::chrono::system_clock::time_point now_time = std::chrono::system_clock::now();
+    typename std::list <memdb_column>::iterator it = this -> time_touch_.begin() -> item;
+
+    while (now_time > it -> timestamp || it -> be_del == true) {
+        if (it -> be_del != true) this -> __size--;
+        key_t to_be_del_k = it -> key;
+        this -> db.erase(it);
+        this -> keys.erase(to_be_del_k);
+		this -> time_touch_.erase(this -> time_touch_.begin());
+
+        if (this -> time_touch_.empty() == true) {
+            return;
+        }
+        it = this -> time_touch_.begin() -> item;
+        now_time = std::chrono::system_clock::now();
+    }
+}
+
+
+template <typename T, typename U>
+
+const std::multiset <typename Memdb <T, U>::index_timestamp>& Memdb <T, U>::get_time_touch_() const {
+    return this -> time_touch_;
+}
+
+
+template <typename T, typename U>
+
+bool Memdb <T, U>::insert_(key_t to_be_ins_k, value_t ins_v) {
+    this -> flush_();
+    if (this -> keys.find(to_be_ins_k) != this -> keys.end()) {
+        return this -> fail;
+    }
+
+    std::chrono::system_clock::time_point now_time = std::chrono::system_clock::now();
+
+    Memdb::memdb_column new_column;
+    new_column.key = to_be_ins_k;
+    new_column.value = ins_v;
+    new_column.timestamp = now_time + std::chrono::seconds(MAX_TIME);
+    this -> db.push_back(new_column);
+
+    Memdb::index_keys new_key;
+    new_key.key = to_be_ins_k;
+    new_key.item = std::prev(this -> db.end());
+    this -> keys[to_be_ins_k] = new_key;
+
+    Memdb::index_timestamp new_time_touch;
+    new_time_touch.item = std::prev(this -> db.end());
+    this -> time_touch_.insert(new_time_touch);
+
+    this -> __size++;
+
+    return this -> succ;
+}
+
+
+template <typename T, typename U>
+
+bool Memdb <T, U>::remove_(key_t to_be_del_k) {
+    this -> flush_();
+    if (this -> keys.find(to_be_del_k) == this -> keys.end()) {
+        return this -> fail;
+    }
+
+    typename std::list <memdb_column>::iterator it = this -> keys[to_be_del_k].item;
+    it -> be_del = true;
+    this -> keys.erase(it -> key);
+    this -> __size--;
+
+    return this -> succ;
+}
+
+
+template <typename T, typename U>
+
+bool Memdb <T, U>::update_(key_t to_be_udt_k, value_t udt_v, bool need_to_udt_timetouch) {
+    this -> flush_();
+    if (this -> keys.find(to_be_udt_k) == this -> keys.end()) {
+        return this -> fail;
+    }
+
+    typename std::list <memdb_column>::iterator it = this -> keys[to_be_udt_k].item;
+    it -> value = udt_v;
+    if (need_to_udt_timetouch == true) {
+        std::chrono::system_clock::time_point now_time = std::chrono::system_clock::now();
+        it -> timestamp = now_time + std::chrono::seconds(MAX_TIME);
+    }
+
+    return this -> succ;
+}
+
+
+template <typename T, typename U>
+
+std::optional<U> Memdb <T, U>::search_(key_t to_be_sch_k){
+    this -> flush_();
+    if (this -> keys.find(to_be_sch_k) == this -> keys.end()) {
+        return std::nullopt;
+    }
+
+    typename std::list <memdb_column>::iterator it = this -> keys[to_be_sch_k].item;
+    return it -> value;
+}
\ No newline at end of file