diff --git a/test/src/cpp11/.vscode/launch.json b/test/src/cpp11/.vscode/launch.json
index 50477bc..ce05d7a 100644
--- a/test/src/cpp11/.vscode/launch.json
+++ b/test/src/cpp11/.vscode/launch.json
@@ -8,7 +8,7 @@
             "name": "C++ Launch (GDB)",
             "type": "cppdbg",
             "request": "launch",
-            "program": "${workspaceFolder}/cpp11.exe",
+            "program": "cpp11.exe",
             "args": [],
             "stopAtEntry": false,
             "cwd": "${workspaceFolder}",
diff --git a/test/src/cpp11/.vscode/settings.json b/test/src/cpp11/.vscode/settings.json
index e2c18d1..9dc95fe 100644
--- a/test/src/cpp11/.vscode/settings.json
+++ b/test/src/cpp11/.vscode/settings.json
@@ -1,5 +1,55 @@
 {
     "files.associations": {
-        "ostream": "cpp"
+        "ostream": "cpp",
+        "cstdint": "cpp",
+        "future": "cpp",
+        "thread": "cpp",
+        "iostream": "cpp",
+        "algorithm": "cpp",
+        "atomic": "cpp",
+        "chrono": "cpp",
+        "cmath": "cpp",
+        "condition_variable": "cpp",
+        "cstddef": "cpp",
+        "cstdio": "cpp",
+        "cstdlib": "cpp",
+        "cstring": "cpp",
+        "cwchar": "cpp",
+        "exception": "cpp",
+        "resumable": "cpp",
+        "functional": "cpp",
+        "initializer_list": "cpp",
+        "ios": "cpp",
+        "iosfwd": "cpp",
+        "istream": "cpp",
+        "limits": "cpp",
+        "list": "cpp",
+        "memory": "cpp",
+        "mutex": "cpp",
+        "new": "cpp",
+        "ratio": "cpp",
+        "stdexcept": "cpp",
+        "streambuf": "cpp",
+        "system_error": "cpp",
+        "xthread": "cpp",
+        "tuple": "cpp",
+        "type_traits": "cpp",
+        "typeinfo": "cpp",
+        "unordered_map": "cpp",
+        "utility": "cpp",
+        "vector": "cpp",
+        "xfacet": "cpp",
+        "xhash": "cpp",
+        "xiosbase": "cpp",
+        "xlocale": "cpp",
+        "xlocinfo": "cpp",
+        "xlocnum": "cpp",
+        "xmemory": "cpp",
+        "xmemory0": "cpp",
+        "xstddef": "cpp",
+        "xstring": "cpp",
+        "xtr1common": "cpp",
+        "xutility": "cpp",
+        "ctime": "cpp"
     }
 }
\ No newline at end of file
diff --git a/test/src/cpp11/CMakeLists.txt b/test/src/cpp11/CMakeLists.txt
index 991424e..b6d1606 100644
--- a/test/src/cpp11/CMakeLists.txt
+++ b/test/src/cpp11/CMakeLists.txt
@@ -3,5 +3,6 @@ project(cpp11)
 
 message("current dir"  ${CMAKE_CURRENT_SOURCE_DIR})
 
-
-add_executable(cpp11 cpp11_test.cpp )
\ No newline at end of file
+aux_source_directory(. SOURCE)
+message(info ${SOURCE})
+add_executable(cpp11 ${SOURCE} )
\ No newline at end of file
diff --git a/test/src/cpp11/cpp11_test.cpp b/test/src/cpp11/cpp11_test.cpp
index ad47ce4..4f75b55 100644
--- a/test/src/cpp11/cpp11_test.cpp
+++ b/test/src/cpp11/cpp11_test.cpp
@@ -1,10 +1,14 @@
 #include<iostream>
 using namespace std;
 #include<stdio.h>
+#include "thread_usage.h"
 
 int main(){
-    int x;
-    cout<<"hello world"<<endl;
-    printf("shit");
-    getchar();
-}
\ No newline at end of file
+    std::cout<<"test start"<<endl;
+    // TestPromiseFutureBefore();
+    try{
+        TestThreadDetch(); 
+    }catch( std::exception  e){
+        std::cout<<"exception"<<e.what();
+    }
+}
diff --git a/test/src/cpp11/thread_usage.cpp b/test/src/cpp11/thread_usage.cpp
new file mode 100644
index 0000000..d389155
--- /dev/null
+++ b/test/src/cpp11/thread_usage.cpp
@@ -0,0 +1,41 @@
+#include "thread_usage.h"
+
+void thread_set_promise(std::promise<int>& promiseObj) {
+    std::cout << "In a thread, making data. wait for 10 seconds"<<std::endl;
+    std::this_thread::sleep_for(std::chrono::milliseconds(800));
+    promiseObj.set_value(9);
+    std::cout<<"end"<<std::endl;
+}
+
+void TestPromiseFutureBefore(){
+    std::promise<int> promiseObj;
+    std::future<int> futureObj = promiseObj.get_future();
+    std::thread t(&thread_set_promise, std::ref(promiseObj));
+
+    while (std::future_status::timeout == futureObj.wait_for(std::chrono::milliseconds(1000))){
+        static uint32_t times = 0;
+        times ++;
+        std::cout<<"time out "<< times <<std::endl;
+    }
+    int ret = futureObj.get();
+    std::cout<<"get value "<<ret<<std::endl;
+    t.join();
+}
+
+void independentThread() 
+{
+    std::cout << "Starting concurrent thread.\n";
+    std::this_thread::sleep_for(std::chrono::seconds(2));
+    std::cout << "Exiting concurrent thread.\n";
+}
+
+void TestThreadDetch() 
+{
+    std::cout << "Starting thread caller.\n";
+    std::thread t(independentThread);
+    // t.detach();
+    std::this_thread::sleep_for(std::chrono::seconds(5));
+    std::cout << "Exiting thread caller.\n";
+    std::cout << "done.\n";
+}
+
diff --git a/test/src/cpp11/thread_usage.h b/test/src/cpp11/thread_usage.h
new file mode 100644
index 0000000..df09ac2
--- /dev/null
+++ b/test/src/cpp11/thread_usage.h
@@ -0,0 +1,11 @@
+#include <thread>
+#include <cstdint>
+#include <iostream>
+#include <functional>
+#include <future>
+#include <thread>
+#include <chrono>
+#include <cstdlib>
+
+void TestPromiseFutureBefore();
+void TestThreadDetch();
\ No newline at end of file