C#實現QQ聊天窗口
本文實例為大傢分享瞭C#實現QQ聊天窗口的具體代碼，供大傢參考，具體內容如下
分析
- 需要兩個TextBox,一個用於顯示消息,一個用於編輯消息
- 需要四個按鈕,分別控制關閉程序,清空正在編輯的消息,發送消息,抖動
原理
1、在TextBox2中編輯消息並發送,在TextBox1中顯示所發送的消息的同時使TextBox2中的消息清空
2、發送的第一條消息TextBox1先保存並顯示,發送第二條消息時將TextBox1事先的消息先打印出來接著顯示第二條消息
3、抖動原理:使窗口的left以及top發生變化(圍繞窗體左上角為坐標原點考慮)加上Thread線程和for循環從而實現窗口抖動效果
程序中用到的重要屬性
ReadOnly屬性:設置文本為隻讀(true)textBox1.ReadOnly=true;
TabIndex屬性:設置光標默認出現在哪裡(0)textBox1.TabIndex=0;
Multiline屬性:設置文本框可多行輸入textBox1.Multiline=true;
Datetime:獲取當前時間
“\r\n” 換行
AcceptButton屬性:獲取或設置當用戶按Enter鍵時所單擊的窗體上的按鈕this.AcceptButton = button2;
Thread類:創建和控制線程Thread.Sleep(10);//設置執行完上一步停留時間還需要創建命名空間using System.Threading;
Trim方法:textBox2.Text.Trim()=="")//Trim:移除當前textBox2對象位置前後的空白字符
具體代碼如下:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Threading;//設置多線程
namespace Test_QQ_chat_windows
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
//設置聊天窗口居中
this.Left = Screen.PrimaryScreen.WorkingArea.Width / 2 - this.Width / 2;
this.Top = Screen.PrimaryScreen.WorkingArea.Height / 2 - this.Height / 2;
//聊天窗口命名
this.Text = "和Know正在聊天";
this.BackgroundImage = Image.FromFile("../../img/timg.jpg");//設置窗體背景圖
this.BackgroundImageLayout = ImageLayout.Stretch;//設置窗體背景圖拉伸
//textBox1設置隻讀
textBox1.ReadOnly = true;
//設置發送按鈕可以用Enter鍵來觸發
this.AcceptButton = button2;
this.Opacity = 0.8;//設置窗體透明度為0.2
textBox1.BackColor = Color.DeepSkyBlue;
textBox2.BackColor = Color.DeepPink;
}
private void button1_Click(object sender, EventArgs e)
{
this.BackColor = Color.DeepSkyBlue;//設置窗體背景顏色
textBox1.Text += "深夜食堂(36522224)" + DateTime.Now + "\r\n"+ "\r\n" + "您發送瞭一個窗口抖動" + "\r\n"+"\r\n";
textBox2.Text = "";//設置發送內容後textBox2中無內容
//窗口抖動
int x = this.Left;
int y = this.Top;
for (int i = 0; i <= 3; i++)//設置抖動次數
{
this.Location = new Point(x - 3, y);
Thread.Sleep(10);//設置執行完上一步停留時間
this.Location = new Point(x - 3, y - 3);
Thread.Sleep(10);
this.Location = new Point(x, y - 3);
Thread.Sleep(10);
this.Location = new Point(x + 3, y - 3);
Thread.Sleep(10);
this.Location = new Point(x + 3, y);
Thread.Sleep(10);
this.Location = new Point(x + 3, y + 3);
Thread.Sleep(10);
this.Location = new Point(x, y + 3);
Thread.Sleep(10);
this.Location = new Point(x - 3, y + 3);
Thread.Sleep(10);
this.Location = new Point(x - 3, y);
Thread.Sleep(10);
this.Location = new Point(x, y);
}
}
private void button2_Click(object sender, EventArgs e)
{
//消息發送
//判斷textbox2中有無內容
if (textBox2.Text == ""||textBox2.Text.Trim()=="")//Trim:移除當前textBox2對象位置前後的空白字符)
{
MessageBox.Show("輸入不能為空值,請重新輸入", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
textBox1.Text += "深夜食堂(36522224)" + DateTime.Now + "\r\n" + "\r\n" + textBox2.Text + "\r\n"+ "\r\n";
textBox2.Text = "";//設置發送內容後textBox2中無內容
}
}
private void button3_Click(object sender, EventArgs e)
{
this.Close();
}
private void button4_Click(object sender, EventArgs e)
{
textBox2.Text = "";
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
//設置起始點在最後消息處
this.textBox1.SelectionStart = this.textBox1.Text.Length;
//內容滾動到最後消息處
this.textBox1.ScrollToCaret();
}
}
}
以上就是本文的全部內容，希望對大傢的學習有所幫助，也希望大傢多多支持WalkonNet。