c#网络编程.pdf

文档介绍：该【c#网络编程 】是由【cjl201801】上传分享，文档一共【47】页，该文档可以免费在线阅读，需要了解更多关于【c#网络编程 】的内容，可以使用淘豆网的站内搜索功能，选择自己适合的文档，以下文字是截取该文章内的部分文字，如需要获得完整电子版，请下载此文档到您的设备，方便您编辑和打印。:.
C#


1.
1Enabled!
2"#$Visible.
3%&'()*+,-./0123PasswordChar!
4%456*478Checkstate9:Indeterminate,;<Checked
9:Uncheckedo
5Panel>GroupBox?***@ARadioButtonB:CAD6E!
6%FGH'ComboBox+I(),;?DropDownStyle
9KL:DropDownList!
7MKLMenuStrip+4NDOPQRShortcutKeys!
8M"ListView+SO#$TUView!

1XYTZ[\]^_`a!bc
2TextBoxdeMDf(),-!bgc
3hiRichTextBoxdejRTF(kfl!bgc
4CheckBoxCheckedCheckstate9mnop!bgc
5ToolTipEM#$423q3rs$tu!bc
YMaskedTextBoxYRichTextBoxx^!:.
yz{
TextBox|}MD~()I0KL:Df>***@f,-U0€
./,-;MaskedTextBox‚&Mƒ3„UD~()I0',-()F…^
„U&†?‡ˆ‰<MasklnputRejected\;RichTextBoxŠ‹ŒTextBox|
}()IŽe0kf@~()‘’IŽe0“”•()Y~–#$„UY
'()+—˜ƒ3™…[™…š›Rtf(œ!
4.&žŸCheckBox[RadioButtonvw!
yz{
CheckBox:s 6¡Že01¢6|6¡0““¤/¦”>“/”;
¨©€hiKLª6|6¡!«|ACheckBox¬­®6¡¯°
±0%***@ACheckBox²³´|E6O70;***@Ap7µ6+0o¶·F¸
0¹56!RadioButton0ºCheckBoxŽe»¼0€M½¾6
¡0¨ºDO6¡¿UÀ0¹|ERadioButtonÁÂ+de´AÃM6+ÄÅ!
|Æ4|Oµ6+0;pE+<ÇRadioButtonÁÂ6+ÄÅqÈɊ!
Ê|^WindowsÌ0Ía΍|ATextBoxY|AButton!
&†0«ÏDÐÁÂ70()*¯‡ÑÒ|f(™ÓÔÕDÐÖ×0ؓ“Ù3ÖD
ÐÁÂ
yz{
1ÍaÚۓÜEX5-5-1¬$;
2Ía+‚&KL“®EX5-5-1Ý:.
®EX5-5-1Ía+‚&
NameŽe<º
TextBoxtextBoxl#$tuScrollBars=Vertical;
Multiline=True
ButtonButtonlˆ‰ÞÒtu\
Button2ˆ‰ßàÞÒ\
3‚&\­/!
áâã~:
inti=1;
boolAdd=true;
......privatevoidbuttonl_Click(objectsender,EventArgse)
(
if(Add)+="Ù"+i+"ÖDÐÁÂ\r\n”Ý
i++Ý
)
privatevoidbutton2_Click(objectsender,EventArgse)
(
Add=false;
)
6.è|~Ì0éListBoxlistBoxl+0qÈÞÒ10A×0«A×ê|O.
yz{
‚&­/“á:
áâã~ë
publicpartialclassForml:Form:.
intm=1;
privatevoidbuttonl_Click(objectsender;EventArgse)
(
for(inti=m;i<m+10;i++)
(
(i);
)
m=m+10;
)
)
7.ìíWindowsîï“ð”+“Êñò”0qfè|AóÊñò!&†ë
ôÀõ0~4²³ö×Ò÷øñ!
yz{
1ÍaÚۓÜEX5-5-2¬$;
2)?InputNumber\:button!YbuttonlYbutton?Ybutton3,button4
Click\!
ùö­/“á:

::.
usingSystem;
;
;
;
;
;
;
namespaceExer2
(
publicpartialclassFormCalculator:Form
(
enumcalculateType{none,add,sub};
calculateTypemyCal=;
intx,y;
boolisY=false;
publicFormCalculatorO
(
InitializeComponentO;
=;
)
privatevoidInputNumber(objectsender,EventArgse)
(
Buttonnum=(Button)sender;
if(isY)
(
;
isY=false;:.
}
+=;
)
privatevoidbuttonEquaLCIick(objectsender,EventArgse)
(
y=();
if(myCal==)
(
=(x+y);
myCal=;
)
if(myCal==)
(
=(x-y);
myCal=;
)
isY=true;
)
privatevoidaddButton_Click(objectsender,EventArgse)
(
myCal=;
x=();
isY=true;
)
privatevoidbuttonSub_Click(objectsender,EventArgse)
myCal=;:.
x=();
isY=true;
)
privatevoidbuttonClear_Click(objectsender,EventArgse)
(
=
myCal=;
isY=false;
)
}
)
8.úûTreeViewYListViewœôÀ|A»¼“üýþÿ”

C:\DocumentsandSettings

1WindowsControlsExercise !"#$
%&,'()Forml*+Text,-“"#”
2/*+$0123Splitcontainer452ImageList452TreeView4
52ListView4 6789:;4,-<=Ex5-5-3>?:.
3)!"#$ ***@imageListl4$A=B01CD

$,FG&
4)$01&,'01NOPQIJ
<M


publicExplorerQ
{
InitializeComponentO;
PopulateTreeView();
)
privatevoidPopulateTreeView()
{
TreeNoderootNode;
Directoryinfoinfo=newDirectoryInfo(@"C:\DocumentsandSettings");
if()
{
rootNode=newTreeNode();
=info;
GetDirectories((),rootNode);
(rootNode);
)
)
privatevoidGetDirectories(DirectoryInfo[]subDirs,TreeNodenodeToAddTo)
{
TreeNodeaNode;
Directorylnfo[]subSubDirs;
foreach(DirectoryinfosubDirinsubDirs):.
aNode=newTreeNode(,0,0);
=subDir;
="folder";
subSubDirs=();
if(!=0)
(
GetDirectories(subSubDirsfaNode);
)
(aNode);
)
)
5)01treeViewlNodeMouseClickTM UVWtreeViewl$XYZ[
\YZ]^_`
alistViewlo
privatevoidtreeViewl_NodeMouseClick(objectsender;TreeNodeMouseClickEventArgse)
{
TreeNodenewSelected=;
();
DirectoryinfonodeDirlnfo=(Directorylnfo);
[]subItems;
ListViewItemitem=null;
foreach()
(
item=newListViewItem(,0);
subItems=[]
{(item,"Directory"),
(item,:.
)};
(subltems);
(item);
)
foreach()
(
item=newListViewItem(,1);
subItems=[]
{(item,"File"),
(item,
)};
(subltems);
(item);
)
();
)
6)cdef'gh
HlmLnGHop

(file)Hl(stream)qrnGsropt;uvwx(yz{|}5~}5
CD)€‚ƒQ„r…†‡t3uˆhQ„‰Š‹ŒŽ‘’“”
c•–—ˆh˜™ š›r5>œ5ž[L5Ÿ ¡¢
,-
lt£Y¤¥¦§ ¨<5©ª©«(¬5]­ˆ‘®¯°±TCP/IP
²³£´yµ
¶ll·¸2u/¹¬‚ƒŠª£YHº¹¬‚ƒ‰»£Y:.
¼
½¾¿·¸ÀÁÂÃÄ ‡¿t‘ÅÁÂÆ_ÇÈÉ

Directory½¾¿·¸À|}HˆhÃÄ <ÊË5z{5%&5ž
HÌÍ λH()Ïž5Ÿ :Šª‹ŒÐÑ[L®Ò
<MCreateDirectoryÆ
žÓԜ$>r;DeleteÆ
ÌÍÓÔ
;MoveÆÄÖ%&°z{;ExistsÆ
×ÔØԜtÙÚ
|}x
Èr;GetCurrentDirectoryÆ
λD
ÛÜ݌;GetFilesÆ

ÞkÓÔ$ß
Šà†D
Directory½ájÆâã×ÔÓÔtق <ä
‚ åÌÍ\;<äæ‚ åž\ç¹ z{è é$ž2
 'ˆhêQ

ëV<M
µtÚ
ìíM
usingSystem;
;
classTest
(
publicstaticvoidMain()
(
stringpath=@"c:\MyDir";
stringtarget=@"c:\TestDir";
try:.
if((path))
(path);
)
if((target))
(
(target,true);
)
(path,target);
(target+@"\");
("{0}$Qt{1}”
target,(target).Length);
)
catch(Exceptione)
(
("‹Œïð:{0}",);
)
finally{}
)
)
Š @ÊËCÓԜ òóôŠõB
:.
ëV<M
µtÚ
ìíM
usingSystem;
;
classTest
(
publicstaticvoidMain()
(
stringpath=@"c:\temp\";
stringpath2=path+"temp";
try
(
using(FileStreamfs=(path)){}
(path2);
(pathzpath2);
("{0}ö÷CM{1}”,path,path2);
(pathzpath2ztrue);
("øùúö÷¶Ã”)û
)
catch
(
("%Êö÷æòón);
):.
)
)
Š U
File½ÇÈÌÍÛÜ>r

ëV<M
µtÚ
ìíM
usingSystem;
;
classFileTest
(
publicstaticvoidMain()
(
("×ýÌÍÛÜ>r?)
("ZWYdÿ
)
inta=();
if(a==Y||a==y){
("
...")
)
else
(
("");
return;:.
Directoryinfodir=newDirectoryinfo
foreach()
(
();
)
)
)
1.
a\s+href\s*=\s*""?([A""]+)”"(.+)
/a!"#$%&
'()*+,-./01+2345#678
!9#$
%:;
\s+<=>?=***@A67
hrefBCHTMLDEF/#GHI
\s*J=>?=***@A67
=BCHTMLDEF/#GHI
\s*J=>?=***@A67
""?J>MNO(P%#)
(D%Q678(DEFURL)#R#STF&
[V""W]+Z[67#\=>?=,-]
^O/#67_&
)D%Q678#`<R#ab
""?J>MNO(P%#)
WBCHTMLDEF/#GHI
(.+)cZ[67(DEFI),-#R&:.
abHTMLDEF#GHI
:lm#nQo#;
A[\w-]+\.*?[\w-]+@[\w-]+\.[\w-]+\.*?[\w]+$
p!#$%&


[\w-]+
<=>?=Z[67a-zqA-Zq0-9rsdtuv>wtu&
***@67yz
G{|}
~:******@domainname&
\.
<=P%FO&€‚ƒ„
<=FOc…†7_#Z[‡=67,-&vr*G{
ˆ‰/Š‹l<=FO&
*?
Œe#
Žnon-greedy,‘’“v|h”J•>?•,-&
[\w-]+\.*?
r–—=#R˜;
Œ+™$<=>?=Z[67a-zqA-Zq0-9rsdtuv>wtuš›Beœ<=
FO#
Ž|h”J•>?•,-&
3.žŸ7˜d ¡¢#;
1¡¢4-8=£6¤&
2€¥™$6¤
Š‹1=67&
3Š‹3=¦6&
4Š‹3=67&
5Š‹3=£6¤&
6Z[67&:.
7)3=6¤>¦6
§123,r3a¨&
8)3=F&
9)@Š‹l1=67
***@BŠ‹l3=67&
10)©ªij«^O&


1)[a-zA-Z]{418}
2)[Aa-zA-Z]{lJ
3)[0-9]{3J
4){3,}
5)[a-zA-Z]{3,}
6).{0,}
7)[A-Za-z0-9]{3}
8)\.{3}
9).{3,}
10)(
1.¬{­®C#¯°ž±²
³´µ¶·¸¹º
š»9a¼&


rdfN½¾;
usingSystem;
;
;
;
;:.
;
;
;
namespace¿À8_6_1
(
publicpartialclassForml:Form
(
publicForml()
(
InitializeComponentO;
}
ÁÂÃButtonÄÅ
ListBox/»9a¼
privatevoidbuttonl_Click(objectsender,EventArgse)
(
("µ¶·¸¹º”);
stringconnectionstring
;
ÁÇÈ®C678ÉÊSqlConnectionËÌ
SqlConnectionconn=newSqlConnection(connectionString);
ÁÉÊSqlCommandËÌ
šÍÎSQLÏÐѬ#®CËÌ
SqlCommandcmd=newSqlCommandQ;
="selectsubstring(ÒO,1,2)asµ¶,avg(¹º)as·¸¹º:.
fromMyTable2groupbysubstring(ÒO,1,2)";
=conn;
try
(
;
SqlDataReaderr=();
while(()==true)
(
(("{0}¶{1}",r[0],r[l]));
)
();
)
catch(Exceptionerr)
(
(Ô³´¹ºÕÖ)
)
finally
(
();
)
):.
)
2.¬{­®C#¯°ž±²
h×MyTable2/€sØÒÙ#ÒO
ÚÛ
ÜÝ,
¹º&šÞa¼
ListBox/»9Ÿß&


rdfN½¾;
usingSystem;
;
;
;
;
;
;
;
namespace¿À8_6_2
(
publicpartialclassForml:Form
(
publicForml()
(
InitializeComponentO;
)
privatevoidbuttonl_Click(objectsender,EventArgse):.
("ÒOÚÛÜݹº)
stringconnectionstring
;
ÁÇÈ®C678ÉÊSqlConnectionËÌ
SqlConnectionconn=newSqlConnection(connectionString);
ÁÉÊSqlCommandËÌ
šÍÎSQLÏÐѬ#®CËÌ
SqlCommandcmd=newSqlCommand();
=
"SelectÒO
ÚÛ
ÜÝ
¹ºFromMyTable2Where(¹º
60)”
=conn;
try
(
();
SqlDataReaderr=();
while(()==true)
(
(("{0}{1}{2}{3}n,r[0],r[l],r[2],r[3]));
)
();
)
catch(Exceptionerr):.
(,"à×¹ºÕÖ")
)
finally
(
();
)
)
}
)
3.°ž±²
r“ã°äåÛæ”#ç
com