调用Closehandle（threadhandle）后是否需要将“threadhandle”指定为null？

Question

HANDLE threadHandle = CreateThread(?, ?, ?, .......);
SetThreadPriority(threadHandle, priority);
CloseHandle(threadHandle);
threadHandle = NULL;
............

Answer 1

不，这不是一项要求 - 只是一种潜在的调试助手。