diff --git a/.gitignore b/.gitignore
index e257658..d577790 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,6 @@
 # ---> C++
+/.xmake
+/.vscode
 # Prerequisites
 *.d
 
diff --git a/src/main.cpp b/src/main.cpp
new file mode 100644
index 0000000..359abf5
--- /dev/null
+++ b/src/main.cpp
@@ -0,0 +1,7 @@
+#include<bits/stdc++.h>
+
+#define AS_EQ(a,b){if((a)!=(b)){cerr<<"assert failed :"<<endl<<#a<<":"}}
+
+int main(int argc, char* argv[]) {
+    std::cout << "hello world!" << std::endl;
+}
diff --git a/xmake.lua b/xmake.lua
new file mode 100644
index 0000000..aa08ce0
--- /dev/null
+++ b/xmake.lua
@@ -0,0 +1,75 @@
+add_rules("mode.debug", "mode.release")
+
+target("xj")
+    set_kind("binary")
+    add_files("src/*.cpp")
+
+--
+-- If you want to known more usage about xmake, please see https://xmake.io
+--
+-- ## FAQ
+--
+-- You can enter the project directory firstly before building project.
+--
+--   $ cd projectdir
+--
+-- 1. How to build project?
+--
+--   $ xmake
+--
+-- 2. How to configure project?
+--
+--   $ xmake f -p [macosx|linux|iphoneos ..] -a [x86_64|i386|arm64 ..] -m [debug|release]
+--
+-- 3. Where is the build output directory?
+--
+--   The default output directory is `./build` and you can configure the output directory.
+--
+--   $ xmake f -o outputdir
+--   $ xmake
+--
+-- 4. How to run and debug target after building project?
+--
+--   $ xmake run [targetname]
+--   $ xmake run -d [targetname]
+--
+-- 5. How to install target to the system directory or other output directory?
+--
+--   $ xmake install
+--   $ xmake install -o installdir
+--
+-- 6. Add some frequently-used compilation flags in xmake.lua
+--
+-- @code
+--    -- add debug and release modes
+--    add_rules("mode.debug", "mode.release")
+--
+--    -- add macro definition
+--    add_defines("NDEBUG", "_GNU_SOURCE=1")
+--
+--    -- set warning all as error
+--    set_warnings("all", "error")
+--
+--    -- set language: c99, c++11
+--    set_languages("c99", "c++11")
+--
+--    -- set optimization: none, faster, fastest, smallest
+--    set_optimize("fastest")
+--
+--    -- add include search directories
+--    add_includedirs("/usr/include", "/usr/local/include")
+--
+--    -- add link libraries and search directories
+--    add_links("tbox")
+--    add_linkdirs("/usr/local/lib", "/usr/lib")
+--
+--    -- add system link libraries
+--    add_syslinks("z", "pthread")
+--
+--    -- add compilation and link flags
+--    add_cxflags("-stdnolib", "-fno-strict-aliasing")
+--    add_ldflags("-L/usr/local/lib", "-lpthread", {force = true})
+--
+-- @endcode
+--
+