1 #include <windows.h> 2 #include <process.h> /* _beginthread, _endthread */ 3 #include <iostream> 4  5 using namespace std; 6  7 void show(void *ptr); 8  9 int main(){10     _beginthread(show, 0, NULL);　　//创建一个子线程11     Sleep(10000);12     return 0;13 }14 15 void show(void *ptr){16     int i = 0;17     cout<<"i am in"<<endl;18     while(true){19         cout<<"i = "<<i++<<endl;20         Sleep(1000);21     }22     23 }