📄 文件类和流操作.mht
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<P class=3DMsoNormal=20
style=3D"MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; =
mso-char-indent-count: 2.0; mso-char-indent-size: 10.5pt"><SPAN=20
lang=3DEN-US><FONT face=3D"Times New Roman" =
size=3D3>Location:=20
</FONT></SPAN><CODE><SPAN lang=3DEN-US=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
=BA=DA=CC=E5">s32file.h<O:P></O:P></SPAN></CODE></P>
<P class=3DMsoNormal=20
style=3D"MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 20pt; =
mso-char-indent-count: 2.0; mso-char-indent-size: 10.0pt"><CODE><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
=BA=DA=CC=E5">=CE=C4=BC=FE=C4=A3=C4=E2=C2=B7=BE=B6=D4=DA<SPAN=20
=
lang=3DEN-US>C:\Symbian\8.0a\epoc32\wins=CF=C2=C3=E6=A1=A3=D3=D0C=A1=A2D=C1=
=BD=B8=F6=B7=D6=C7=F8=A1=A3</SPAN></SPAN></CODE></P>
<DIV=20
style=3D"BORDER-RIGHT: 0.75pt inset; PADDING-RIGHT: 5pt; =
BORDER-TOP: 0.75pt inset; PADDING-LEFT: 5pt; BACKGROUND: #e1e4f2; =
PADDING-BOTTOM: 5pt; BORDER-LEFT: 0.75pt inset; PADDING-TOP: 5pt; =
BORDER-BOTTOM: 0.75pt inset"><PRE style=3D"BORDER-RIGHT: medium none; =
PADDING-RIGHT: 0cm; BORDER-TOP: medium none; PADDING-LEFT: 0cm; =
PADDING-BOTTOM: 0cm; MARGIN: 3.75pt 15pt 0pt; BORDER-LEFT: medium none; =
PADDING-TOP: 0cm; BORDER-BOTTOM: medium none; mso-padding-alt: 5.0pt =
5.0pt 5.0pt 5.0pt; mso-border-alt: inset windowtext .75pt"><SPAN =
lang=3DEN-US style=3D"COLOR: black"><FONT size=3D2><FONT =
face=3D=BA=DA=CC=E5>RFs fs;<O:P></O:P></FONT></FONT></SPAN></PRE><PRE =
style=3D"BORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: =
medium none; PADDING-LEFT: 0cm; PADDING-BOTTOM: 0cm; MARGIN: 3.75pt 15pt =
0pt; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: medium =
none; mso-padding-alt: 5.0pt 5.0pt 5.0pt 5.0pt; mso-border-alt: inset =
windowtext .75pt"><SPAN lang=3DEN-US style=3D"COLOR: black"><FONT =
size=3D2><FONT =
face=3D=BA=DA=CC=E5>User::LeaveIfError(fs.Connect());<O:P></O:P></FONT></=
FONT></SPAN></PRE><PRE style=3D"BORDER-RIGHT: medium none; =
PADDING-RIGHT: 0cm; BORDER-TOP: medium none; PADDING-LEFT: 0cm; =
PADDING-BOTTOM: 0cm; MARGIN: 3.75pt 15pt 0pt; BORDER-LEFT: medium none; =
PADDING-TOP: 0cm; BORDER-BOTTOM: medium none; mso-padding-alt: 5.0pt =
5.0pt 5.0pt 5.0pt; mso-border-alt: inset windowtext .75pt"><FONT =
size=3D2><FONT face=3D=BA=DA=CC=E5><SPAN class=3Dhighlight1><SPAN =
lang=3DEN-US><STRONG><FONT =
color=3D#ff0000>RFile</FONT></STRONG></SPAN></SPAN><SPAN lang=3DEN-US =
style=3D"COLOR: black"> file<O:P></O:P></SPAN></FONT></FONT></PRE><PRE =
style=3D"BORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: =
medium none; PADDING-LEFT: 0cm; PADDING-BOTTOM: 0cm; MARGIN: 3.75pt 15pt =
0pt; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: medium =
none; mso-padding-alt: 5.0pt 5.0pt 5.0pt 5.0pt; mso-border-alt: inset =
windowtext .75pt"><SPAN lang=3DEN-US style=3D"COLOR: black"><FONT =
size=3D2><FONT face=3D=BA=DA=CC=E5>User::LeaveIfError(file.Open(fs, =
_L("C:\\file.foo"), =
EFileWrite));<O:P></O:P></FONT></FONT></SPAN></PRE><PRE =
style=3D"BORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: =
medium none; PADDING-LEFT: 0cm; PADDING-BOTTOM: 0cm; MARGIN: 3.75pt 15pt =
0pt; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: medium =
none; mso-padding-alt: 5.0pt 5.0pt 5.0pt 5.0pt; mso-border-alt: inset =
windowtext .75pt"><SPAN lang=3DEN-US style=3D"COLOR: black"><FONT =
size=3D2><FONT face=3D=BA=DA=CC=E5>TBuf8<256> =
buf;<O:P></O:P></FONT></FONT></SPAN></PRE><PRE style=3D"BORDER-RIGHT: =
medium none; PADDING-RIGHT: 0cm; BORDER-TOP: medium none; PADDING-LEFT: =
0cm; PADDING-BOTTOM: 0cm; MARGIN: 3.75pt 15pt 0pt; BORDER-LEFT: medium =
none; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none; mso-padding-alt: =
5.0pt 5.0pt 5.0pt 5.0pt; mso-border-alt: inset windowtext .75pt"><SPAN =
lang=3DEN-US style=3D"COLOR: black"><FONT size=3D2><FONT =
face=3D=BA=DA=CC=E5>file.Read(buf, =
256);<O:P></O:P></FONT></FONT></SPAN></PRE><PRE style=3D"BORDER-RIGHT: =
medium none; PADDING-RIGHT: 0cm; BORDER-TOP: medium none; PADDING-LEFT: =
0cm; PADDING-BOTTOM: 0cm; MARGIN: 3.75pt 15pt 0pt; BORDER-LEFT: medium =
none; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none; mso-padding-alt: =
5.0pt 5.0pt 5.0pt 5.0pt; mso-border-alt: inset windowtext .75pt"><SPAN =
lang=3DEN-US style=3D"COLOR: black"><FONT size=3D2><FONT =
face=3D=BA=DA=CC=E5>file.Seek(ESeekStart, =
911);<O:P></O:P></FONT></FONT></SPAN></PRE><PRE style=3D"BORDER-RIGHT: =
medium none; PADDING-RIGHT: 0cm; BORDER-TOP: medium none; PADDING-LEFT: =
0cm; PADDING-BOTTOM: 0cm; MARGIN: 3.75pt 15pt 0pt; BORDER-LEFT: medium =
none; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none; mso-padding-alt: =
5.0pt 5.0pt 5.0pt 5.0pt; mso-border-alt: inset windowtext .75pt"><SPAN =
lang=3DEN-US style=3D"COLOR: black"><FONT size=3D2><FONT =
face=3D=BA=DA=CC=E5>file.Write(_L8("Some thing you wanna =
write..."));<O:P></O:P></FONT></FONT></SPAN></PRE><PRE =
style=3D"BORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: =
medium none; PADDING-LEFT: 0cm; PADDING-BOTTOM: 0cm; MARGIN: 3.75pt 15pt =
0pt; BORDER-LEFT: medium none; PADDING-TOP: 0cm; BORDER-BOTTOM: medium =
none; mso-padding-alt: 5.0pt 5.0pt 5.0pt 5.0pt; mso-border-alt: inset =
windowtext .75pt"><SPAN lang=3DEN-US style=3D"COLOR: black"><FONT =
size=3D2><FONT =
face=3D=BA=DA=CC=E5>file.Close();<O:P></O:P></FONT></FONT></SPAN></PRE></=
DIV>
<P class=3DMsoNormal=20
style=3D"MARGIN: 0cm 0cm 0pt 28.5pt; TEXT-INDENT: -18pt; =
mso-list: l1 level1 lfo2; tab-stops: list 28.5pt"><SPAN=20
lang=3DEN-US><FONT face=3D"Times New Roman"><FONT =
size=3D3>1)</FONT><SPAN=20
style=3D"FONT: 7pt 'Times New =
Roman'"> =20
</SPAN></FONT></SPAN><FONT size=3D3><STRONG><SPAN=20
style=3D"FONT-FAMILY: =CB=CE=CC=E5; mso-hansi-font-family: =
'Times New Roman'; mso-ascii-font-family: 'Times New =
Roman'">=D3=EB=CE=C4=BC=FE=B7=FE=CE=F1=C6=F7=BD=A8=C1=A2=CD=A8=D0=C5</SPA=
N></STRONG><SPAN=20
style=3D"FONT-FAMILY: =CB=CE=CC=E5; mso-hansi-font-family: =
'Times New Roman'; mso-ascii-font-family: 'Times New =
Roman'">=A3=BA</SPAN></FONT></P>
<P class=3DMsoNormal=20
style=3D"MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21.1pt; =
mso-char-indent-count: 2.0; mso-char-indent-size: 10.55pt"><STRONG><SPAN =
lang=3DEN-US><FONT face=3D"Times New Roman" size=3D3>RFs=20
fsSession;</FONT></SPAN></STRONG></P>
<P class=3DMsoNormal=20
style=3D"MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 10.5pt; =
mso-char-indent-count: 1.0; mso-char-indent-size: 10.5pt"><SPAN=20
lang=3DEN-US><FONT face=3D"Times New Roman" size=3D3>TInt =
fsret =3D=20
fsSession.Connect(); // start a file =
session</FONT></SPAN></P>
<P class=3DMsoNormal style=3D"MARGIN: 0cm 0cm 0pt"><SPAN=20
lang=3DEN-US><FONT size=3D3><FONT face=3D"Times New =
Roman"><SPAN=20
style=3D"mso-tab-count: =
1"> =20
</SPAN>if (fsret !=3D KErrNone)</FONT></FONT></SPAN></P>
<P class=3DMsoNormal style=3D"MARGIN: 0cm 0cm 0pt"><SPAN=20
lang=3DEN-US><FONT size=3D3><FONT face=3D"Times New =
Roman"><SPAN=20
style=3D"mso-tab-count: =
1"> =20
</SPAN><SPAN=20
style=3D"mso-tab-count: =
1"> =20
=
</SPAN>{console->Printf(KTxtConnectFailed,fsret);</FONT></FONT></SPAN>=
</P>
<P class=3DMsoNormal style=3D"MARGIN: 0cm 0cm 0pt"><SPAN=20
lang=3DEN-US><FONT size=3D3><FONT face=3D"Times New =
Roman"><SPAN=20
style=3D"mso-tab-count: =
1"> =20
</SPAN><SPAN=20
style=3D"mso-tab-count: =
1"> =20
</SPAN>User::Leave(fsret);</FONT></FONT></SPAN></P>
<P class=3DMsoNormal style=3D"MARGIN: 0cm 0cm 0pt"><SPAN=20
lang=3DEN-US><FONT size=3D3><FONT face=3D"Times New =
Roman"><SPAN=20
style=3D"mso-tab-count: =
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