diff --git a/libmemdb/inc/us/memdb.hpp b/libmemdb/inc/us/memdb.hpp
index cc8b48a..ec3873a 100644
--- a/libmemdb/inc/us/memdb.hpp
+++ b/libmemdb/inc/us/memdb.hpp
@@ -8,10 +8,6 @@
 
 
 
-namespace shufeng2012 {
-
-
-
 template <typename T, typename U>
 
 class Memdb {
@@ -55,10 +51,10 @@ public:
 
 
 
-    Memdb() = default;
-    Memdb(int max_time) : MAX_TIME(std::max(0, max_time)) {}
-    Memdb& operator=(const Memdb& to_be_cp_memdb) = default;
-    ~Memdb() = default;
+    explicit Memdb() = default;
+    explicit Memdb(int max_time) : MAX_TIME(std::max(0, max_time)) {}
+    explicit Memdb& operator=(const Memdb& to_be_cp_memdb) = default;
+    explicit ~Memdb() = default;
 
 
     size_t size() const {
@@ -149,8 +145,4 @@ public:
         typename std::list <memdb_column>::iterator it = this -> keys[to_be_sch_k].item;
         return it -> value;
     }
-};
-
-
-
-}
\ No newline at end of file
+};
\ No newline at end of file
diff --git a/memdb/.gitignore b/memdb/.gitignore
new file mode 100644
index 0000000..839a556
--- /dev/null
+++ b/memdb/.gitignore
@@ -0,0 +1,72 @@
+# Prerequisites
+*.d
+
+# Compiled Object files
+*.slo
+*.lo
+*.o
+*.obj
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Linker files
+*.ilk
+
+# Debugger Files
+*.pdb
+
+# Compiled Dynamic libraries
+*.so
+*.dylib
+*.dll
+*.so.*
+
+
+# Fortran module files
+*.mod
+*.smod
+
+# Compiled Static libraries
+*.lai
+*.la
+*.a
+*.lib
+
+# Executables
+*.exe
+*.out
+*.app
+
+# Build directories
+build/
+Build/
+build-*/
+
+# CMake generated files
+CMakeFiles/
+CMakeCache.txt
+cmake_install.cmake
+#Makefile
+install_manifest.txt
+compile_commands.json
+
+# Temporary files
+*.tmp
+*.log
+*.bak
+*.swp
+
+# vcpkg
+vcpkg_installed/
+
+# debug information files
+*.dwo
+
+# test output & cache
+Testing/
+.cache/
+
+# Databases
+*.db*
\ No newline at end of file
diff --git a/memdb/Makefile b/memdb/Makefile
new file mode 100644
index 0000000..e69de29
diff --git a/memdb/README.md b/memdb/README.md
new file mode 100644
index 0000000..e69de29
diff --git a/memdb/_run.sh b/memdb/_run.sh
new file mode 100644
index 0000000..e69de29
diff --git a/memdb/_set.sh b/memdb/_set.sh
new file mode 100644
index 0000000..e69de29
diff --git a/memdb/src/memdb.cpp b/memdb/src/memdb.cpp
new file mode 100644
index 0000000..55720a8
--- /dev/null
+++ b/memdb/src/memdb.cpp
@@ -0,0 +1,78 @@
+#include <us/RpcServer.hpp>
+#include <us/RpcClient.hpp>
+
+#include <boost/json.hpp>
+
+#include <us/memdb.hpp>
+
+#include <string>
+#include <iostream>
+
+namespace json = boost::json;
+
+
+
+struct ClientConfig {
+    std::string connected_host      = "127.0.0.1";
+    int         connected_port      = 8005;
+    std::string service_name        = "db2";
+    double      timeout             = 10.0;
+    bool        retry_on_refused    = true;
+};
+
+struct ServerConfig {
+    std::string listen_host     = "127.0.0.1";
+    int         listen_port     = 8011;
+    int         workers         = 4;
+    std::string db_url          = "sqlite:///database.db";
+};
+
+static std::string get_db_path(const std::string url) {
+    const std::string prefix = "sqlite:///";
+    if (url.rfind(prefix, 0) == 0) {
+        return url.substr(prefix.size());
+    }
+    return url;
+}
+
+
+
+class DBConnection {
+private:
+    ClientConfig __cfg;
+
+
+public:
+    explicit DBConnection(const ClientConfig& cfg) :
+        __cfg(cfg) {}
+    ~DBConnection() = default;
+
+    std::string get_from_sql(const std::string& sql_name) {
+        pmc::net::RpcClient client(__cfg.connected_host, __cfg.connected_port, __cfg.service_name, __cfg.timeout, __cfg.retry_on_refused);
+
+        try {
+            auto data = client.call("execute", {{"action", "select"}, {"table", "memdb"}, {"where", {"sql_name", sql_name}}});
+            
+        } catch (const std::exception& err) {
+            std::cerr << "[memdb] Error: 连接失败: " << err.what() << std::endl;
+            std::exit(1);
+        }
+    }
+};
+
+
+class MemdbServer {
+
+
+private:
+    ServerConfig __cfg;
+
+
+public:
+    explicit MemdbServer(const ServerConfig& cfg) :
+        __cfg(cfg) {}
+
+    void start() {
+        //TODO 编写
+    }
+};
\ No newline at end of file