HANDLE m_file;
m_file = CreateFile("c:\\1.txt",GENERIC_WRITE,FILE_SHARE_READ,NULL,CREATE_NEW,FILE_ATTRIBUTE_NORMAL,NULL);
SetFilePointer(m_file,1000000000,NULL,FILE_BEGIN);
WriteFile(m_file," ",1,NULL,NULL);
CloseHandle(m_file);
1G大概也就5秒吧最多
m_file = CreateFile("c:\\1.txt",GENERIC_WRITE,FILE_SHARE_READ,NULL,CREATE_NEW,FILE_ATTRIBUTE_NORMAL,NULL);
SetFilePointer(m_file,1000000000,NULL,FILE_BEGIN);
WriteFile(m_file," ",1,NULL,NULL);
CloseHandle(m_file);
1G大概也就5秒吧最多
解决方案 »
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