【android图书馆管理系统源码】【逻辑回归python源码】【拼多多商家源码】委托listbox源码-皮皮网

【android图书馆管理系统源码】【逻辑回归python源码】【拼多多商家源码】委托listbox源码

2024-12-24 11:06:48 来源：调查问卷源码

1.[按键源码分享]----QUI列表框显示脚本TracePrint输出信息
2.è°ç»ç®åä»ç»ä¸ä¸C#ï¼
3.高分求教vc：listbox多行显示
4.å³äºc#ä¸UDPç¼ç¨

委托listbox源码

[按键源码分享]----QUI列表框显示脚本TracePrint输出信息

展示效果:

当Form1加载完成时

Form1中的委托ListBox1列表为空

初始化日志记录并输出信息

再次初始化日志记录并输出信息

定义函数处理日志记录

读取文件"C:\a.log"内容

解析文件内容，去掉换行符并分割

将解析结果加入ListBox1列表中

函数结束

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è°ç»ç®åä»ç»ä¸ä¸C#ï¼

C#ä»Javaç»§æ¿èæ¥çç¹ç¹

using System;

class Hello

{

static void Main()

{

Console.WriteLine("Hello, world");

}

C#ä»CåC++ç»§æ¿çç¹ç¹

#define

#undef

#if

#elif

#else

#endif

#warning

#error

#line []

+ - ! ~ ++ -- true false

è½å¤è¢«éè½½çäºåè¿ç®ç¬¦æ¯:

+ - * / % & | ^ << >> == != > < >= <=

C#ç¬æçç¹ç¹

åºæ¬çæ°æ®ç±»å:C#æ¥ææ¯C,C++æèJavaæ´å¹¿æ³çæ°æ®ç±»å.è¿äºç±»åæ¯bool, byte, ubyte, short, ushort, int, uint, long, ulong, float, double,ådecimal.è±¡Javaä¸æ ·,ææè¿äºç±»åé½æä¸ä¸ªåºå®çå¤§å°.åè±¡CåC++ä¸æ ·,æ¯ä¸ªæ°æ®ç±»åé½ææç¬¦å·åæ ç¬¦å·ä¸¤ç§ç±»å.ä¸Javaç¸åçæ¯,ä¸ä¸ªåç¬¦åéåå«çæ¯ä¸ä¸ªä½çUnicodeåç¬¦.C#æ°çæ°æ®ç±»åæ¯decimalæ°æ®ç±»å,å¯¹äºè´§å¸æ°æ®,å®è½åæ¾ä½è¿å¶æ°å.

public class ListBox: Control

{

private string[] items;

public string this[int index]

{

get

{

return items[index];

}

set

{

items[index] = value;

Repaint();

}

ListBox listBox = ...;

listBox[0] = "hello";

Console.WriteLine(listBox[0]);

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C#ç®å²ââæèªãç¨åºåãæå¿-æå

C# ç®å²

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C# 1.0ï¼çº¯ç²¹çé¢åå¯¹è±¡

C# 2.0ï¼æ³åç¼ç¨æ°æ¦å¿µ

å°Visual Studioä¸ï¼ä»¥èµ¢ååæçå¸åºãå æ¤ï¼å¾®è½¯å°Visual Studio.NET âæ¹åâä¸ºVisual Studio ï¼å¹¶å³å®æ¨è¿ä¸å¹´åå¸ãä¸è¿

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æ°ç»namesä¸ææé¿åº¦å¤§äº5çåç¬¦ä¸²ï¼å°±å¯ä»¥åï¼ var longname = from n in names wheren.Length > 5 select n;è¿æ ·æä»¬å°±å¾å°ä¸ä¸ª

var longname = names.Where(n => n.

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高分求教vc：listbox多行显示

英文资料,看看能不能用上把.

The DrawTextEx function draws formatted text in the specified rectangle.

int DrawTextEx(

HDC hdc, // handle to device context

LPTSTR lpchText, // pointer to string to draw

int cchText, // length of string to draw

LPRECT lprc, // pointer to rectangle coordinates

UINT dwDTFormat, // formatting options

LPDRAWTEXTPARAMS lpDTParams // pointer to structure for more options

);

Parameters

hdc

Identifies the device context to draw in.

lpchText

Points to the string to draw. The string must be null-terminated if the cchText parameter is -1.

cchText

Specifies the length, in characters, of the string specified by the lpchText parameter. If the string is null-terminated, this parameter can be -1 to calculate the length.

lprc

Points to a RECT structure that contains the rectangle, in logical coordinates, in which the text is to be formatted.

dwDTFormat

Specifies formatting options. This parameter can be one or more of these values:

Value Meaning

DT_BOTTOM Justifies the text to the bottom of the rectangle. This value must be combined with DT_SINGLELINE.

DT_CALCRECT Determines the width and height of the rectangle. If there are multiple lines of text, DrawTextEx uses the width of the rectangle pointed to by the lprc parameter and extends the base of the rectangle to bound the last line of text. If there is only one line of text, DrawTextEx modifies the right side of the rectangle so that it bounds the last character in the line. In either case, DrawTextEx returns the height of the formatted text, but does not draw the text.

DT_CENTER Centers text horizontally in the rectangle.

DT_EDITCONTROL Duplicates the text-displaying characteristics of a multiline edit control. Specifically, the average character width is calculated in the same manner as for an edit control, and the function does not display a partially visible last line.

DT_END_ELLIPSIS or DT_PATH_ELLIPSIS Replaces part of the given string with ellipses, if necessary, so that the result fits in the specified rectangle. The given string is not modified unless the DT_MODIFYSTRING flag is specified.You can specify DT_END_ELLIPSIS to replace characters at the end of the string, or DT_PATH_ELLIPSIS to replace characters in the middle of the string. If the string contains backslash (\) characters, DT_PATH_ELLIPSIS preserves as much as possible of the text after the last backslash.

DT_EXPANDTABS Expands tab characters. The default number of characters per tab is eight.

DT_EXTERNALLEADING Includes the font external leading in line height. Normally, external leading is not included in the height of a line of text.

DT_LEFT Aligns text to the left.

DT_MODIFYSTRING Modifies the given string to match the displayed text. This flag has no effect unless the DT_END_ELLIPSIS or DT_PATH_ELLIPSIS flag is specified.

DT_NOCLIP Draws without clipping. DrawTextEx is somewhat faster when DT_NOCLIP is used.

DT_NOPREFIX Turns off processing of prefix characters. Normally, DrawTextEx interprets the ampersand (&) mnemonic-prefix character as a directive to underscore the character that follows, and the double ampersand (&&) mnemonic-prefix characters as a directive to print a single ampersand. By specifying DT_NOPREFIX, this processing is turned off.

DT_RIGHT Aligns text to the right.

DT_RTLREADING Layout in right to left reading order for bi-directional text when the font selected into the hdc is a Hebrew or Arabic font. The default reading order for all text is left to right.

DT_SINGLELINE Displays text on a single line only. Carriage returns and linefeeds do not break the line.

DT_TABSTOP Sets tab stops. The DRAWTEXTPARAMS structure pointed to by the lpDTParams parameter specifies the number of average character widths per tab stop.

DT_TOP Top justifies text (single line only).

DT_VCENTER Centers text vertically (single line only).

DT_WORDBREAK Breaks words. Lines are automatically broken between words if a word extends past the edge of the rectangle specified by the lprc parameter. A carriage return-linefeed sequence also breaks the line.

dwDTParams

Points to a DRAWTEXTPARAMS structure that specifies additional formatting options. This parameter can be NULL.

Return Values

If the function succeeds, the return value is the text height.

If the function fails, the return value is zero.

å³äºc#ä¸UDPç¼ç¨

//è¿æ¯ä¸ä¸ªæºç ä½ çç

using System;

using System.Net;

using System.Net.Sockets;

using System.Text;

using System.Threading;

using System.Windows.Forms;

namespace UDPClient

{

public partial class frmUdp : Form

{

private UdpClient sendUdpClient;

private UdpClient receiveUpdClient;

public frmUdp()

{

InitializeComponent();

IPAddress[] ips = Dns.GetHostAddresses("");

tbxlocalip.Text = ips[3].ToString();

int port = ;

tbxlocalPort.Text = port.ToString();

tbxSendtoIp.Text = ips[3].ToString();

tbxSendtoport.Text = port.ToString();

}

// æ¥åæ¶æ¯

private void btnReceive_Click(object sender, EventArgs e)

{

// åå»ºæ¥æ¶å¥æ¥å

IPAddress localIp = IPAddress.Parse(tbxlocalip.Text);

IPEndPoint localIpEndPoint = new IPEndPoint(localIp, int.Parse(tbxlocalPort.Text));

receiveUpdClient = new UdpClient(localIpEndPoint);

Thread receiveThread = new Thread(ReceiveMessage);

receiveThread.Start();

}

// æ¥æ¶æ¶æ¯æ¹æ³

private void ReceiveMessage()

{

IPEndPoint remoteIpEndPoint = new IPEndPoint(IPAddress.Any, 0);

while (true)

{

try

{

// å³éreceiveUdpClientæ¶æ¤æ¶ä¼äº§çå¼å¸¸

byte[] receiveBytes = receiveUpdClient.Receive(ref remoteIpEndPoint);

string message = Encoding.Unicode.GetString(receiveBytes);

// æ¾ç¤ºæ¶æ¯åå®¹

ShowMessageforView(lstbxMessageView, string.Format("{ 0}[{ 1}]", remoteIpEndPoint, message));

}

catch

{

break;

}

delegate void ShowMessageforViewCallBack(ListBox listbox, string text);

private void ShowMessageforView(ListBox listbox, string text)

{

if (listbox.InvokeRequired)

{

ShowMessageforViewCallBack showMessageforViewCallback = ShowMessageforView;

listbox.Invoke(showMessageforViewCallback, new object[] { listbox, text });

}

else

{

lstbxMessageView.Items.Add(text);

lstbxMessageView.SelectedIndex = lstbxMessageView.Items.Count - 1;

lstbxMessageView.ClearSelected();

}

private void btnSend_Click(object sender, EventArgs e)

{

if (tbxMessageSend.Text == string.Empty)

{

return;

}

// éæ©åéæ¨¡å¼

if (chkbxAnonymous.Checked == true)

{

// å¿åæ¨¡å¼(å¥æ¥åç»å®çç«¯å£ç±ç³»ç»éæºåé)

sendUdpClient = new UdpClient(0);

}

else

{

// å®åæ¨¡å¼(å¥æ¥åç»å®å°æ¬å°æå®çç«¯å£)

IPAddress localIp = IPAddress.Parse(tbxlocalip.Text);

IPEndPoint localIpEndPoint = new IPEndPoint(localIp, int.Parse(tbxlocalPort.Text));

sendUdpClient = new UdpClient(localIpEndPoint);

}

Thread sendThread = new Thread(SendMessage);

sendThread.Start(tbxMessageSend.Text);

}

// åéæ¶æ¯æ¹æ³

private void SendMessage(object obj)

{

string message = (string)obj;

byte[] sendbytes = Encoding.Unicode.GetBytes(message);

IPAddress remoteIp = IPAddress.Parse(tbxSendtoIp.Text);

IPEndPoint remoteIpEndPoint = new IPEndPoint(remoteIp, int.Parse(tbxSendtoport.Text));

sendUdpClient.Send(sendbytes, sendbytes.Length, remoteIpEndPoint);

sendUdpClient.Close();

ResetMessageText(tbxMessageSend);

}

// éç¨äºåè°æºå¶

// ä½¿ç¨å§æå®ç°è·¨çº¿ç¨çé¢çæä½æ¹å¼

delegate void ResetMessageCallback(TextBox textbox);

private void ResetMessageText(TextBox textbox)

{

// Control.InvokeRequiredå±æ§ä»£è¡¨

if (textbox.InvokeRequired)

{

ResetMessageCallback resetMessagecallback = ResetMessageText;

textbox.Invoke(resetMessagecallback, new object[] { textbox });

}

else

{

textbox.Clear();

textbox.Focus();

}

// åæ¢æ¥æ¶

private void btnStop_Click(object sender, EventArgs e)

{

receiveUpdClient.Close();

}

private void btnClear_Click(object sender, EventArgs e)

{

this.lstbxMessageView.Items.Clear();

}

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【android图书馆管理系统源码】【逻辑回归python源码】【拼多多商家源码】委托listbox源码

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今日关注

7月首次！ 4艘中國海警船編隊侵擾金門水域

开源企业网站源码_开源企业网站源码是什么

android导航栏源码_安卓导航栏代码

冠鼎买卖指标源码_冠鼎买卖指标源码最新修改方法

热点快讯