求指教：readstring怎么回到开头

[oktsl]

cstdiofile file
while(file.readstring(buff,128))
{
......
}
我读到file的最后了，下次怎么重新开始从头读，不想再OPEN一次了，谢谢

[快乐鹦鹉]

用file.SeekToBegin()

[zhuzhenlei]

[Quote=引用 1 楼 happyparrot 的回复:]
用file.SeekToBegin()
[/Quote]
、、

[yuhudie203]

[Quote=引用 1 楼 happyparrot 的回复:]
用file.SeekToBegin()
[/Quote]
right

[MoXiaoRab]

CStdioFile::Seek

virtual ULONGLONG Seek(
LONGLONG lOff,
UINT nFrom
);

Parameters
lOff
Number of bytes to move the pointer.

nFrom
Pointer movement mode. Must be one of the following values:

CFile::begin: Move the file pointer lOff bytes forward from the beginning of the file.

CFile::current: Move the file pointer lOff bytes from the current position in the file.

CFile::end: Move the file pointer lOff bytes from the end of the file. Note that lOff must be negative to seek into the existing file; positive values will seek past the end of the file.

[oktsl]

谢谢楼上的兄弟
这论坛好快的速度
我是新人，再次感谢

[MoXiaoRab]

CStdioFile cfile(_T("Stdio_Seek_File.dat"), CFile::modeWrite |
   CFile::modeCreate);
LONGLONG lOff = 1000;
ULONGLONG lActual = cfile.Seek(lOff, CFile::begin);

[yuhudie203]

还有一个 rewind(file);

[flyskytoday]

cstdiofile也是继承cfile类
用seek来指向头
cstdiofile file;
file.Seek(0,CFile::begin);