diff --git a/test/src/cpp11/thread_usage.cpp b/test/src/cpp11/thread_usage.cpp
index 22a2530..93a0154 100644
--- a/test/src/cpp11/thread_usage.cpp
+++ b/test/src/cpp11/thread_usage.cpp
@@ -78,7 +78,7 @@ void do_print_id(int id) {
 }
 
 void go(){
-    gReady = true;
+    gReady = false;
     gCv.notify_all(); // 唤醒所有线程.
 }
 
@@ -93,6 +93,10 @@ int TestConditionVariable() {
     for (int i = 0; i < 10; ++i)
         threads[i] = std::thread(do_print_id, i);
     std::cout << "10 threads ready to race...\n";
+    Sleep(1000);
+    go_once();
+    go_once();
+    go_once();
     go_once();
 
     for (auto & th:threads)
@@ -252,6 +256,12 @@ class ASyncProcess {
             ret = t(args...);
         });
     }
+    ASyncProcess(Function t,Ret &ret){
+        std::cout<<"ASyncProcess construct"<<std::endl;
+        mThread = new std::thread([t,&ret](){
+            ret = t();
+        });
+    }    
     bool Finish(){
         return m_finish;
     }
@@ -264,8 +274,6 @@ class ASyncProcess {
         std::thread *mThread;
 };
 
-
-
 template<typename R, typename... Args>
 int test2(R(&f)(Args...), R& ret_param, Args... args) {
     ret_param = f(args...);
@@ -279,10 +287,10 @@ int test2(void(&f)(Args...), Args... args)
     return 0;   
 }
 
-
 int ss(int p,int w){
     return 1;
 }
+
 int main()
 {
     TestConditionVariable();
@@ -293,6 +301,5 @@ int main()
     },result,22);
     getchar();
     std::cout<<result;
-
 }