windows 下多线程

        unsigned  uiThread2ID;
        HANDLE handle = (HANDLE)_beginthreadex(NULL, , ThreadUploadFun, NULL, CREATE_SUSPENDED, &uiThread2ID);
        ResumeThread(handle);
        CloseHandle(handle);

unsigned int __stdcall ThreadUploadFun(PVOID pM)
{
    char str[];
    int thread_id = GetCurrentThreadId();
    sprintf_s(str, "线程ID号为 % 4d的子线程启动", thread_id);return ;
}

#include <sstream>
stringstream str;
int thread_id = GetCurrentThreadId();
str << "线程ID号为"<< thread_id<<"的子线程启动";
cout << str.str() << endl;