📄 解读 c# 中的正则表达式.mht
字号:
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<TD align=3Dmiddle height=3D45><INPUT maxLength=3D50 size=3D12 =
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<TD align=3Dmiddle height=3D45><A=20
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</TD></FORM></TR></TBODY></TABLE></DIV>
<TD vAlign=3Dtop align=3Dmiddle width=3D600>
<DIV class=3Dmain_title3>
<DIV class=3Dtitle_1><IMG height=3D14=20
src=3D"http://www.itlearner.com/article/Images/arrow.gif" =
width=3D11=20
align=3DabsMiddle> =BD=E2=B6=C1 C# =
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=BB=FA</SPAN></DIV></DIV>
<DIV id=3Darticletitle>
<H1><STRONG>=BD=E2=B6=C1 C# =
=D6=D0=B5=C4=D5=FD=D4=F2=B1=ED=B4=EF=CA=BD</STRONG></H1></DIV>
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=D7=F7=D5=DF=A3=BA=C1=F5=D1=E5=C7=E0 =C0=B4=D4=B4=A3=
=BA<A=20
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target=3D_blank>=C0=B6=C9=AB=C0=ED=CF=EB</A> =B8=FC=D0=C2=CA=B1=
=BC=E4=A3=BA2005-3-25 =A3=DD</DIV>
<DIV id=3Dadv_468_60></DIV>
<DIV id=3Darticlecontent>
<DIV id=3Dcontent_left_ad>
<TABLE cellSpacing=3D0 cellPadding=3D0 align=3Dright border=3D0>
<TBODY>
<TR>
<TD><IFRAME border=3D0 name=3Dmyad_128 marginWidth=3D0=20
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src=3D"http://sogou.com/cpc/adsense.php?cpct=3D&pid=3Ditlearner&w=
w=3D145&dc=3D2&num=3D4&frame=3D1&fontsize=3D12&jjtitl=
e=3D0&dir=3D0&jjtitlebg=3D&titlec=3D5E5EA2&briefc=3D&=
linkc=3DBB4444&bg=3D808080&tdbg=3D&kword=3D0&keywords=3D"=
=20
frameBorder=3D0 width=3D128 scrolling=3Dno=20
height=3D128></IFRAME></TD></TR></TBODY></TABLE></DIV>
=
<P>=A1=A1=A1=A1=B6=E0=C9=D9=C4=EA=C0=B4=A3=AC=D0=ED=B6=E0=B5=C4=B1=E0=B3=CC=
=D3=EF=D1=D4=BA=CD=B9=A4=BE=DF=B6=BC=B0=FC=BA=AC=B6=D4=D5=FD=D4=F2=B1=ED=B4=
=EF=CA=BD=B5=C4=D6=A7=B3=D6=A3=AC.NET=BB=F9=B4=A1=C0=E0=BF=E2=D6=D0=B0=FC=
=BA=AC=D3=D0=D2=BB=B8=F6=C3=FB=D7=D6=BF=D5=BC=E4=BA=CD=D2=BB=CF=B5=C1=D0=BF=
=C9=D2=D4=B3=E4=B7=D6=B7=A2=BB=D3=B9=E6=D4=F2=B1=ED=B4=EF=CA=BD=CD=FE=C1=A6=
=B5=C4=C0=E0=A3=AC=B6=F8=C7=D2=CB=FC=C3=C7=D2=B2=B6=BC=D3=EB=CE=B4=C0=B4=B5=
=C4Perl=20
=
5=D6=D0=B5=C4=B9=E6=D4=F2=B1=ED=B4=EF=CA=BD=BC=E6=C8=DD=A1=A3 <BR>&n=
bsp; =20
=
<BR>=A1=A1=A1=A1=B4=CB=CD=E2=A3=ACregexp=C0=E0=BB=B9=C4=DC=B9=BB=CD=EA=B3=
=C9=D2=BB=D0=A9=C6=E4=CB=FB=B5=C4=B9=A6=C4=DC=A3=AC=C0=FD=C8=E7=B4=D3=D3=D2=
=D6=C1=D7=F3=B5=C4=BD=E1=BA=CF=C4=A3=CA=BD=BA=CD=B1=ED=B4=EF=CA=BD=B5=C4=B1=
=E0=BC=AD=B5=C8=A1=A3 <BR> =20
=
<BR>=A1=A1=A1=A1=D4=DA=D5=E2=C6=AA=CE=C4=D5=C2=D6=D0=A3=AC=CE=D2=BD=AB=BC=
=F2=D2=AA=B5=D8=BD=E9=C9=DCSystem.Text.RegularExpression=D6=D0=B5=C4=C0=E0=
=BA=CD=B7=BD=B7=A8=A1=A2=D2=BB=D0=A9=D7=D6=B7=FB=B4=AE=C6=A5=C5=E4=BA=CD=CC=
=E6=BB=BB=B5=C4=C0=FD=D7=D3=D2=D4=BC=B0=D7=E9=BD=E1=B9=B9=B5=C4=CF=EA=CF=B8=
=C7=E9=BF=F6=A3=AC=D7=EE=BA=F3=A3=AC=BB=B9=BB=E1=BD=E9=C9=DC=D2=BB=D0=A9=C4=
=E3=BF=C9=C4=DC=BB=E1=D3=C3=B5=BD=B5=C4=B3=A3=BC=FB=B5=C4=B1=ED=B4=EF=CA=BD=
=A1=A3 <BR> =20
=
<BR><STRONG>=D3=A6=B8=C3=D5=C6=CE=D5=B5=C4=BB=F9=B4=A1=D6=AA=CA=B6</STRON=
G></P>
=
<P>=A1=A1=A1=A1=B9=E6=D4=F2=B1=ED=B4=EF=CA=BD=B5=C4=D6=AA=CA=B6=BF=C9=C4=DC=
=CA=C7=B2=BB=C9=D9=B1=E0=B3=CC=C8=CB=D4=B1=A1=B0=B3=A3=D1=A7=B3=A3=CD=FC=A1=
=B1=B5=C4=D6=AA=CA=B6=D6=AE=D2=BB=A1=A3=D4=DA=D5=E2=C6=AA=CE=C4=D5=C2=D6=D0=
=A3=AC=CE=D2=C3=C7=BD=AB=BC=D9=B6=A8=C4=E3=D2=D1=BE=AD=D5=C6=CE=D5=C1=CB=B9=
=E6=D4=F2=B1=ED=B4=EF=CA=BD=B5=C4=D3=C3=B7=A8=A3=AC=D3=C8=C6=E4=CA=C7Perl=
=20
=
5=D6=D0=B1=ED=B4=EF=CA=BD=B5=C4=D3=C3=B7=A8=A1=A3.NET=B5=C4regexp=C0=E0=CA=
=C7Perl=20
=
5=D6=D0=B1=ED=B4=EF=CA=BD=B5=C4=D2=BB=B8=F6=B3=AC=BC=AF=A3=AC=D2=F2=B4=CB=
=A3=AC=B4=D3=C0=ED=C2=DB=C9=CF=CB=B5=CB=FC=BD=AB=D7=F7=CE=AA=D2=BB=B8=F6=BA=
=DC=BA=C3=B5=C4=C6=F0=B5=E3=A1=A3=CE=D2=C3=C7=BB=B9=BC=D9=C9=E8=C4=E3=BE=DF=
=D3=D0=C1=CBC#=B5=C4=D3=EF=B7=A8=BA=CD.NET=BC=DC=B9=B9=B5=C4=BB=F9=B1=BE=D6=
=AA=CA=B6=A1=A3 <BR> =20
=
<BR>=A1=A1=A1=A1=C8=E7=B9=FB=C4=E3=C3=BB=D3=D0=B9=E6=D4=F2=B1=ED=B4=EF=CA=
=BD=B7=BD=C3=E6=B5=C4=D6=AA=CA=B6=A3=AC=CE=D2=BD=A8=D2=E9=C4=E3=B4=D3Perl=
=20
=
5=B5=C4=D3=EF=B7=A8=D7=C5=CA=D6=BF=AA=CA=BC=D1=A7=CF=B0=A1=A3=D4=DA=B9=E6=
=D4=F2=B1=ED=B4=EF=CA=BD=B7=BD=C3=E6=B5=C4=C8=A8=CD=FE=CA=E9=BC=AE=CA=C7=D3=
=C9=BD=DC=B8=A5=C0=EF=A1=A4=B8=A5=C0=D7=B5=C2=B6=FB=B1=E0=D0=B4=B5=C4=A1=B6=
=D5=C6=CE=D5=B1=ED=B4=EF=CA=BD=A1=B7=D2=BB=CA=E9=A3=AC=B6=D4=D3=DA=CF=A3=CD=
=FB=C9=EE=BF=CC=C0=ED=BD=E2=B1=ED=B4=EF=CA=BD=B5=C4=B6=C1=D5=DF=A3=AC=CE=D2=
=C3=C7=C7=BF=C1=D2=BD=A8=D2=E9=D4=C4=B6=C1=D5=E2=B1=BE=CA=E9=A1=A3 <=
BR> =20
<BR><STRONG>RegularExpression=D7=E9=BA=CF=CC=E5</STRONG></P>
=
<P>=A1=A1=A1=A1regexp=B9=E6=D4=F2=C0=E0=B0=FC=BA=AC=D4=DASystem.Text.Regu=
larExpressions.dll=CE=C4=BC=FE=D6=D0=A3=AC=D4=DA=B6=D4=D3=A6=D3=C3=C8=ED=BC=
=FE=BD=F8=D0=D0=B1=E0=D2=EB=CA=B1=C4=E3=B1=D8=D0=EB=D2=FD=D3=C3=D5=E2=B8=F6=
=CE=C4=BC=FE=A3=AC=C0=FD=C8=E7=A3=BA</P>
<P><U>csc r:System.Text.RegularExpressions.dll foo.cs</U></P>
=
<P>=C3=FC=C1=EE=BD=AB=B4=B4=BD=A8foo.exe=CE=C4=BC=FE=A3=AC=CB=FC=BE=CD=D2=
=FD=D3=C3=C1=CBSystem.Text.RegularExpressions=CE=C4=BC=FE=A1=A3 <BR>=
=20
<BR><STRONG>=C3=FB=D7=D6=BF=D5=BC=E4=BC=F2=BD=E9</STRONG></P>
=
<P>=A1=A1=A1=A1=D4=DA=C3=FB=D7=D6=BF=D5=BC=E4=D6=D0=BD=F6=BD=F6=B0=FC=BA=AC=
=D7=C56=B8=F6=C0=E0=BA=CD=D2=BB=B8=F6=B6=A8=D2=E5=A3=AC=CB=FC=C3=C7=CA=C7=
=A3=BA <BR> <BR>=A1=A1=A1=A1Capture:=20
=
=B0=FC=BA=AC=D2=BB=B4=CE=C6=A5=C5=E4=B5=C4=BD=E1=B9=FB=A3=BB <BR>=A1=
=A1=A1=A1CaptureCollection: =
Capture=B5=C4=D0=F2=C1=D0=A3=BB <BR>=A1=A1=A1=A1Group:=20
=
=D2=BB=B4=CE=D7=E9=BC=C7=C2=BC=B5=C4=BD=E1=B9=FB=A3=AC=D3=C9Capture=BC=CC=
=B3=D0=B6=F8=C0=B4=A3=BB <BR>=A1=A1=A1=A1Match:=20
=
=D2=BB=B4=CE=B1=ED=B4=EF=CA=BD=B5=C4=C6=A5=C5=E4=BD=E1=B9=FB=A3=AC=D3=C9G=
roup=BC=CC=B3=D0=B6=F8=C0=B4=A3=BB <BR>=A1=A1=A1=A1MatchCollection: =
=
Match=B5=C4=D2=BB=B8=F6=D0=F2=C1=D0=A3=BB <BR>=A1=A1=A1=A1MatchEvalu=
ator: =
=D6=B4=D0=D0=CC=E6=BB=BB=B2=D9=D7=F7=CA=B1=CA=B9=D3=C3=B5=C4=B4=FA=C0=ED=A3=
=BB <BR>=A1=A1=A1=A1Regex:=20
=
=B1=E0=D2=EB=BA=F3=B5=C4=B1=ED=B4=EF=CA=BD=B5=C4=CA=B5=C0=FD=A1=A3</P>
=
<P>=A1=A1=A1=A1Regex=C0=E0=D6=D0=BB=B9=B0=FC=BA=AC=D2=BB=D0=A9=BE=B2=CC=AC=
=B5=C4=B7=BD=B7=A8=A3=BA</P>
<P>=A1=A1=A1=A1Escape: =
=B6=D4=D7=D6=B7=FB=B4=AE=D6=D0=B5=C4regex=D6=D0=B5=C4=D7=AA=D2=E5=B7=FB=BD=
=F8=D0=D0=D7=AA=D2=E5=A3=BB <BR>=A1=A1=A1=A1IsMatch:=20
=
=C8=E7=B9=FB=B1=ED=B4=EF=CA=BD=D4=DA=D7=D6=B7=FB=B4=AE=D6=D0=C6=A5=C5=E4=A3=
=AC=B8=C3=B7=BD=B7=A8=B7=B5=BB=D8=D2=BB=B8=F6=B2=BC=B6=FB=D6=B5=A3=BB&nbs=
p;<BR>=A1=A1=A1=A1Match: =
=B7=B5=BB=D8Match=B5=C4=CA=B5=C0=FD=A3=BB <BR>=A1=A1=A1=A1Matches:=20
=
=B7=B5=BB=D8=D2=BB=CF=B5=C1=D0=B5=C4Match=B5=C4=B7=BD=B7=A8=A3=BB <B=
R>=A1=A1=A1=A1Replace: =
=D3=C3=CC=E6=BB=BB=D7=D6=B7=FB=B4=AE=CC=E6=BB=BB=C6=A5=C5=E4=B5=C4=B1=ED=B4=
=EF=CA=BD=A3=BB <BR>=A1=A1=A1=A1Split:=20
=
=B7=B5=BB=D8=D2=BB=CF=B5=C1=D0=D3=C9=B1=ED=B4=EF=CA=BD=BE=F6=B6=A8=B5=C4=D7=
=D6=B7=FB=B4=AE=A3=BB <BR>=A1=A1=A1=A1Unescape:=B2=BB=B6=D4=D7=D6=B7=
=FB=B4=AE=D6=D0=B5=C4=D7=AA=D2=E5=D7=D6=B7=FB=D7=AA=D2=E5=A1=A3 <BR>=
=20
<BR><STRONG>=BC=F2=B5=A5=C6=A5=C5=E4</STRONG></P>
=
<P>=A1=A1=A1=A1=CE=D2=C3=C7=CA=D7=CF=C8=B4=D3=CA=B9=D3=C3Regex=A1=A2Match=
=C0=E0=B5=C4=BC=F2=B5=A5=B1=ED=B4=EF=CA=BD=BF=AA=CA=BC=D1=A7=CF=B0=A1=A3&=
nbsp;<BR> <BR><SPAN=20
class=3Dcode>Match m =3D Regex.Match("abracadabra", "(a|b|r)+");=20
=
</SPAN><BR> <BR>=CE=D2=C3=C7=CF=D6=D4=DA=D3=D0=C1=CB=D2=BB=
=B8=F6=BF=C9=D2=D4=D3=C3=D3=DA=B2=E2=CA=D4=B5=C4Match=C0=E0=B5=C4=CA=B5=C0=
=FD=A3=AC=C0=FD=C8=E7=A3=BAif=20
(m.Success)... =
<BR>=C8=E7=B9=FB=CF=EB=CA=B9=D3=C3=C6=A5=C5=E4=B5=C4=D7=D6=B7=FB=B4=AE=A3=
=AC=BF=C9=D2=D4=B0=D1=CB=FC=D7=AA=BB=BB=B3=C9=D2=BB=B8=F6=D7=D6=B7=FB=B4=AE=
=A3=BA <BR> =20
<BR><SPAN class=3Dcode>Console.WriteLine("Match=3D"+m.ToString()); =
=
</SPAN><BR> <BR>=D5=E2=B8=F6=C0=FD=D7=D3=BF=C9=D2=D4=B5=C3=
=B5=BD=C8=E7=CF=C2=B5=C4=CA=E4=B3=F6:=20
=
Match=3Dabra=A1=A3=D5=E2=BE=CD=CA=C7=C6=A5=C5=E4=B5=C4=D7=D6=B7=FB=B4=AE=C1=
=CB=A1=A3 <BR> =20
<BR><STRONG>=D7=D6=B7=FB=B4=AE=B5=C4=CC=E6=BB=BB</STRONG></P>
=
<P>=A1=A1=A1=A1=BC=F2=B5=A5=D7=D6=B7=FB=B4=AE=B5=C4=CC=E6=BB=BB=B7=C7=B3=A3=
=D6=B1=B9=DB=A1=A3=C0=FD=C8=E7=CF=C2=C3=E6=B5=C4=D3=EF=BE=E4=A3=BA <=
BR> <BR><SPAN=20
class=3Dcode>string s =3D Regex.Replace("abracadabra", "abra",=20
=
"zzzz");</SPAN> <BR> <BR>=CB=FC=B7=B5=BB=D8=D7=D6=B7=
=FB=B4=AEzzzzcadzzzz=A3=AC=CB=F9=D3=D0=C6=A5=C5=E4=B5=C4=D7=D6=B7=FB=B4=AE=
=B6=BC=B1=BB=CC=E6=BB=BB=B3=C9=C1=CBzzzzz=A1=A3 </P>
=
<P>=A1=A1=A1=A1=CF=D6=D4=DA=CE=D2=C3=C7=C0=B4=BF=B4=D2=BB=B8=F6=B1=C8=BD=CF=
=B8=B4=D4=D3=B5=C4=D7=D6=B7=FB=B4=AE=CC=E6=BB=BB=B5=C4=C0=FD=D7=D3=A3=BA&=
nbsp;<BR> <BR><SPAN=20
class=3Dcode>string s =3D Regex.Replace(" abra ", =
@"^\s*(.*?)\s*$", "$1");=20
=
</SPAN><BR> <BR>=D5=E2=B8=F6=D3=EF=BE=E4=B7=B5=BB=D8=D7=D6=
=B7=FB=B4=AEabra=A3=AC=C6=E4=C7=B0=B5=BC=BA=CD=BA=F3=D7=BA=B5=C4=BF=D5=B8=
=F1=B6=BC=C8=A5=B5=F4=C1=CB=A1=A3 <BR> =20
=
<BR>=A1=A1=A1=A1=C9=CF=C3=E6=B5=C4=C4=A3=CA=BD=B6=D4=D3=DA=C9=BE=B3=FD=C8=
=CE=D2=E2=D7=D6=B7=FB=B4=AE=D6=D0=B5=C4=C7=B0=B5=BC=BA=CD=BA=F3=D0=F8=BF=D5=
=B8=F1=B6=BC=B7=C7=B3=A3=D3=D0=D3=C3=A1=A3=D4=DAC#=D6=D0=A3=AC=CE=D2=C3=C7=
=BB=B9=BE=AD=B3=A3=CA=B9=D3=C3=D7=D6=C4=B8=D7=D6=B7=FB=B4=AE=A3=AC=D4=DA=D2=
=BB=B8=F6=D7=D6=C4=B8=D7=D6=B7=FB=B4=AE=D6=D0=A3=AC=B1=E0=D2=EB=B3=CC=D0=F2=
=B2=BB=B0=D1=D7=D6=B7=FB=A1=B0=20
\=A1=B1=20
=
=D7=F7=CE=AA=D7=AA=D2=E5=D7=D6=B7=FB=B4=A6=C0=ED=A1=A3=D4=DA=CA=B9=D3=C3=D7=
=D6=B7=FB=A1=B0\=A1=B1=D6=B8=B6=A8=D7=AA=D2=E5=D7=D6=B7=FB=CA=B1=A3=AC@".=
.."=CA=C7=B7=C7=B3=A3=D3=D0=D3=C3=B5=C4=A1=A3=C1=ED=CD=E2=D6=B5=B5=C3=D2=BB=
=CC=E1=B5=C4=CA=C7$1=D4=DA=D7=D6=B7=FB=B4=AE=CC=E6=BB=BB=B7=BD=C3=E6=B5=C4=
=CA=B9=D3=C3=A3=AC=CB=FC=B1=ED=C3=F7=CC=E6=BB=BB=D7=D6=B7=FB=B4=AE=D6=BB=C4=
=DC=B0=FC=BA=AC=B1=BB=CC=E6=BB=BB=B5=C4=D7=D6=B7=FB=B4=AE=A1=A3 <BR>=
=20
=
<BR><STRONG>=C6=A5=C5=E4=D2=FD=C7=E6=B5=C4=CF=B8=BD=DA</STRONG></P>
=
<P>=A1=A1=A1=A1=CF=D6=D4=DA=A3=AC=CE=D2=C3=C7=CD=A8=B9=FD=D2=BB=B8=F6=D7=E9=
=BD=E1=B9=B9=C0=B4=C0=ED=BD=E2=D2=BB=B8=F6=C9=D4=CE=A2=B8=B4=D4=D3=B5=C4=C0=
=FD=D7=D3=A1=A3=BF=B4=CF=C2=C3=E6=B5=C4=C0=FD=D7=D3=A3=BA <BR> =
<BR><SPAN=20
class=3Dcode>string text =3D =
"abracadabra1abracadabra2abracadabra3";=20
<BR> <BR> =A1=A1=A1=A1string pat =3D @" =
<BR> <BR> =20
=A1=A1=A1=A1=A1=A1=A1=A1( # =
=B5=DA=D2=BB=B8=F6=D7=E9=B5=C4=BF=AA=CA=BC <BR> <BR> =
=A1=A1=A1=A1=A1=A1=A1=A1 abra # =C6=A5=C5=E4=D7=D6=B7=FB=B4=AEabra=20
<BR> <BR> =A1=A1=A1=A1=A1=A1=A1=A1 ( # =
=B5=DA=B6=FE=B8=F6=D7=E9=B5=C4=BF=AA=CA=BC <BR> <BR> =20
=A1=A1=A1=A1=A1=A1=A1=A1 cad # =C6=A5=C5=E4=D7=D6=B7=FB=B4=AEcad =
<BR> <BR> =A1=A1=A1=A1=A1=A1=A1=A1 )? # =
=B5=DA=B6=FE=B8=F6=D7=E9=BD=E1=CA=F8=A3=A8=BF=C9=D1=A1=A3=A9=20
<BR> <BR> =A1=A1=A1=A1=A1=A1=A1=A1) # =
=B5=DA=D2=BB=B8=F6=D7=E9=BD=E1=CA=F8 <BR> <BR> =20
=A1=A1=A1=A1=A1=A1=A1=A1+ # =
=C6=A5=C5=E4=D2=BB=B4=CE=BB=F2=B6=E0=B4=CE <BR> <BR> =
=A1=A1=A1=A1=A1=A1=A1=A1"; <BR> =20
<BR> =
=A1=A1=A1=A1//=C0=FB=D3=C3x=D0=DE=CA=CE=B7=FB=BA=F6=C2=D4=D7=A2=CA=CD =
<BR> <BR> =A1=A1=A1=A1Regex r =3D new=20
Regex(pat, "x"); <BR> <BR> =
=A1=A1=A1=A1//=BB=F1=B5=C3=D7=E9=BA=C5=C2=EB=B5=C4=C7=E5=B5=A5 =
<BR> =20
<BR> =A1=A1=A1=A1int[] gnums =3D r.GetGroupNumbers(); =
<BR> =20
<BR> =A1=A1=A1=A⌨️ 快捷键说明
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