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HANDLE CreateThread(
    LPSECURITY_ATTRIBUTES lpThreadAttributes,
    DWORD dwStackSize,
    LPTHREAD_START_ROUTINE lpStartAddress,
    LPVOID lpParameter,
    DWORD dwCreationFlags,
    LPDWORD lpThreadId
   );
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    unsigned long _beginthread(void (_USERENTRY *__start)(void *), unsigned __stksize, void *__arg);
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    function BeginThread(SecurityAttributes: Pointer; StackSize: LongWord; ThreadFunc: TThreadFunc; Parameter: Pointer; CreationFlags: LongWord; var ThreadId: LongWord): Integer;
  ThreadFunc£ºÏ̺߳¯Êý£¬
  BeginThread£ºÏß³ÌÆô¶¯º¯Êý¡£
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