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c# - 如何从字符串中删除剩余的不需要的字符

转载 作者:行者123 更新时间:2023-11-30 19:25:16 27 4
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我的字符串输出是

String mystring="My Name¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥";

我怎么把 ¥¥¥¥¥¥ 从我的话中去掉。我正在使用 C#。

我试过了

mystring.Trim( '¥' );

但是没用

我正在聊天,这是我的代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.Net.Sockets;
namespace Chat
{
public partial class Form1 : Form
{

Socket sck;
EndPoint epLocal, epRemote;

public Form1()
{
InitializeComponent();

sck = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
sck.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);

textLocalIp.Text= GetLocalIP();
textFriendsIp.Text = GetLocalIP();
}

private string GetLocalIP()
{
IPHostEntry host;
host = Dns.GetHostEntry(Dns.GetHostName());
foreach (IPAddress ip in host.AddressList)
{
if (ip.AddressFamily == AddressFamily.InterNetwork)
{
return ip.ToString();
}
}
return "127.0.0.1";
}


private void MessageCallBack(IAsyncResult aResult)
{
try
{
int size = sck.EndReceiveFrom(aResult, ref epRemote);
if (size > 0)
{
byte[] receivedData = new byte[1464];
receivedData = (byte[])aResult.AsyncState;
ASCIIEncoding eEncoding = new ASCIIEncoding();
string receivedMessage = eEncoding.GetString(receivedData);
string c = Caesar(receivedMessage, -1); // String recibido se cambia alreves
//Console.WriteLine(c.Trim( new Char[] { '¥' } )); //Here is where it doesnt work////////////////////

listMessage.Items.Add("Anonymous: "+c.Trim( '¥' ));


}

byte[] buffer = new byte[1500];
sck.BeginReceiveFrom(buffer,
0,
buffer.Length,
SocketFlags.None,
ref epRemote,
new AsyncCallback(MessageCallBack),
buffer);



}
catch (Exception exp)
{
MessageBox.Show(exp.ToString());
}
}

private void button2_Click(object sender, EventArgs e)
{
try
{
System.Text.ASCIIEncoding enc = new System.Text.ASCIIEncoding();

string b = Caesar(textMessage.Text, 1); // Sending the Chipper


byte[] msg = new byte[1500];
msg = enc.GetBytes(b);

sck.Send(msg);
listMessage.Items.Add("You: "+textMessage.Text);
textMessage.Clear();
}
catch(Exception ex)
{
MessageBox.Show(ex.ToString());
}
}

private void button1_Click(object sender, EventArgs e)
{
try
{
//epLocal = new IPEndPoint(IPAddress.Parse(textLocalIP.Text, Convert.ToInt32(textLocalPort.Text));
epLocal = new IPEndPoint(IPAddress.Parse(textLocalIp.Text),Convert.ToInt32(textLocalPort.Text));
sck.Bind(epLocal);

epRemote = new IPEndPoint(IPAddress.Parse(textFriendsIp.Text),
Convert.ToInt32(textFriendsPort.Text));
sck.Connect(epRemote);

byte[] buffer = new byte[1500];
sck.BeginReceiveFrom(buffer,
0,
buffer.Length,
SocketFlags.None,
ref epRemote,
new AsyncCallback(MessageCallBack),
buffer);

button1.Text = "Connected!";
button1.Enabled = false;
button2.Enabled = true;
textMessage.Focus();

}
catch(Exception ex)
{
MessageBox.Show(ex.ToString());
}
}


static string Caesar(string value, int shift)
{
char[] buffer = value.ToCharArray();
for (int i = 0; i < buffer.Length; i++)
{
// Letter.
char letter = buffer[i];
// Add shift to all.
letter = (char)(letter + shift);
// Subtract 26 on overflow.
// Add 26 on underflow.
if (letter > 'z')
{
letter = (char)(letter - 26);
}
else if (letter < 'a')
{
letter = (char)(letter + 26);
}
// Store.
buffer[i] = letter;
}
return new string(buffer);
}

}

错误是我标记它的地方,我的输出就像我的名字¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥ ¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥¥所以我只想把它分开

最佳答案

如果您希望变量具有新值,则需要确保将结果赋回给它:

mystring = mystring.Trim( '¥' );

关于c# - 如何从字符串中删除剩余的不需要的字符,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/29909471/

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