DWORD* ThreadID = (DWORD*)lpVoid;可以换成DWORD ThreadID = (DWORD)lpVoid;
CreateThread在C++编程里面是不安全的。可以用_beginthreadex();

哦，学习了...

#include "stdafx.h"
#include <Windows.h>
#include <process.h>

#include <iostream>
using namespace std;

#include <Windows.h>
DWORD increased = 0;
LONG atom_increase = 0;
unsigned int _stdcall IncreaseThread(void* lpVoid)
{
        DWORD ThreadID = *(DWORD*)(lpVoid);
        if (ThreadID)
        {
                int count = 0;
                while(count++<100)
                {
                        while(::InterlockedExchange(&atom_increase, 1) == 1)
                                ::Sleep(1);
                        cout<<ThreadID<<"\t"<<increased++<<endl;
                        if (count==100){
                                cout<<"thread "<<ThreadID<<" quit"<<endl;
                        }
                        ::InterlockedExchange(&atom_increase, 0);
                        ::Sleep(10);
                }
                Sleep(1);
                return 0;
        }
        else
        {
                cout<<"invalid parameter!"<<endl;
                return 1;
        }
}

int _tmain(int argc, _TCHAR* argv[])
{
        HANDLE handles[1000];
        cout << "请输入1-1000待创建的线程数" << endl;
        DWORD dwN = 0;
        cin >> dwN ;
        for (int i = 0 ; i< dwN; i++)
        {
                DWORD* ptr = new DWORD;
                *ptr = i;
                unsigned int dwThreadID;
                handles[i] = (HANDLE)_beginthreadex(NULL, 0, IncreaseThread,
                        ptr, 0, &dwThreadID);
                if (handles[i] == INVALID_HANDLE_VALUE){
                        cout<<"create thread failed"<<i<<endl;
                }
        }
        // 设置不受信(WaitForMultipleObjects根本没有用，强制主线程不退出)
        Sleep(INFINITE);
        ::WaitForMultipleObjects(66, handles, TRUE, INFINITE);
        cout<<"leave"<<endl;
        return 0;
}
修改了你的代码，你试下这个。（_beginthreadex()要用多线程库才能编译成功）

o my god , 没有 delete掉

1.CreateThread在失败时返回NULL，而不是INVALID_HANDLE_VALUE(-1).
2.句柄使用完后要使用CloseHandle关闭。
3.WaitForMultipleObjects的第一个参数用于指明调用线程想要查看内核对象的数目，这个值必须在1到MAXIMUM_WAIT_OBJECTS(64)之间。
4.不知道楼主是否在测试中会看到乱码。这是由于没有对输出进行同步控制的缘故。
下面是我修改后的代码（VC6下测试通过）：

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82

#include <iostream> using namespace std;   #include <Windows.h> #include "tchar.h"   DWORD increased = 0; LONG atom_increase = 0; LONG atom_stdout_inUse = 0;/* 控制输出的同步，否则可能会出现乱码 */   UINT IncreaseThread(LPVOID lpVoid) {     DWORD* ThreadID = (DWORD*)lpVoid;     if (ThreadID)     {         int count = 0;         while(count++<3)         {             while(::InterlockedExchange(&atom_increase, 1) == 1)                 ::Sleep(1);               /* 占用stdout */             while (::InterlockedExchange(&atom_stdout_inUse, 1)==1)             {                 ::Sleep(1);             }             cout<<"Thread "<<*ThreadID<<"\t"<<increased++<<endl;             ::InterlockedExchange(&atom_stdout_inUse, 0);   /* 释放stdout */               ::InterlockedExchange(&atom_increase, 0);             ::Sleep(1);         }           /* 占用stdout */         while (::InterlockedExchange(&atom_stdout_inUse, 1)==1)         {             ::Sleep(1);         }         cout<<"Thread "<<*ThreadID<<" quit"<<endl;         ::InterlockedExchange(&atom_stdout_inUse, 0);   /* 释放stdout */           delete ThreadID;         return 0;     }     else     {         /* 占用stdout */         while (::InterlockedExchange(&atom_stdout_inUse, 1)==1)         {             ::Sleep(1);         }         cout<<"invalid parameter!"<<endl;         ::InterlockedExchange(&atom_stdout_inUse, 0);   /* 释放stdout */         return 1;     } }   int _tmain(int argc, _TCHAR* argv[]) {     HANDLE handles[100];     DWORD  nThreadCount = 64;     for (int i = 0 ; i< nThreadCount; i++)     {         DWORD *Par = new DWORD;         *Par = i;         DWORD dwThreadID;         handles[i] = ::CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)IncreaseThread,             Par, 0, &dwThreadID);         if (handles[i] == NULL)         {             cout<<"create thread failed"<<i<<endl;         }     }           ::WaitForMultipleObjects(nThreadCount, handles, TRUE, INFINITE);     for (i=0; i<nThreadCount; i++)     {         CloseHandle(handles[i]);     }     cout<<"leave"<<endl;     return 0; }

还是“密码学小组（见习）理论及数学组”厉害

这么多线程,是并行计算?

非常感谢！呵呵。