简易记事本---C#窗体

[align=left]using System;[/align]
[align=left]using System.Collections.Generic;[/align]
[align=left]using System.ComponentModel;[/align]
[align=left]using System.Data;[/align]
[align=left]using System.Drawing;[/align]
[align=left]using System.Text;[/align]
[align=left]using System.Windows.Forms;[/align]
[align=left] [/align]
[align=left]namespace xiezhiban[/align]
[align=left]{[/align]
[align=left] public partial class Form1 : Form[/align]
[align=left] {[/align]
[align=left] string s;[/align]
[align=left] public Form1()[/align]
[align=left] {[/align]
[align=left] InitializeComponent();[/align]
[align=left] }[/align]
[align=left] private void 复制ToolStripMenuItem_Click(object sender, EventArgs e)[/align]
[align=left] {[/align]
[align=left] s = this.richTextBox1.SelectedText;[/align]
[align=left] }[/align]
[align=left] [/align]
[align=left] private void 剪切ToolStripMenuItem_Click(object sender, EventArgs e)[/align]
[align=left] {[/align]
[align=left] s = this.richTextBox1.SelectedText;[/align]
[align=left] this.richTextBox1.SelectedText = "";[/align]
[align=left] }[/align]
[align=left] [/align]
[align=left] private void 粘贴ToolStripMenuItem_Click(object sender, EventArgs e)[/align]
[align=left] {[/align]
[align=left] this.richTextBox1.SelectedText += s;[/align]
[align=left] }[/align]
[align=left] [/align]
[align=left] private void 退出ToolStripMenuItem_Click(object sender, EventArgs e)[/align]
[align=left] {[/align]
[align=left] Application.Exit();[/align]
[align=left] }[/align]
[align=left] [/align]
[align=left] private void 打开ToolStripMenuItem_Click(object sender, EventArgs e)[/align]
[align=left] {[/align]
[align=left] OpenFileDialog ofd =new OpenFileDialog();[/align]
[align=left] ofd.Filter = "text|*.Txt|rtf|*.rtf";[/align]
[align=left] ofd.Multiselect = false;[/align]
[align=left] ofd.ShowDialog();[/align]
[align=left] string fn = ofd.FileName;[/align]
[align=left] if (fn != "")[/align]
[align=left] {[/align]
[align=left] this.richTextBox1.LoadFile(fn,RichTextBoxStreamType.PlainText);[/align]
[align=left] }[/align]
[align=left] [/align]
[align=left] }[/align]
[align=left] [/align]
[align=left] private void 保存ToolStripMenuItem_Click(object sender, EventArgs e)[/align]
[align=left] {[/align]
[align=left] SaveFileDialog sfd =new SaveFileDialog();[/align]
[align=left] sfd.Filter = "text|*.Txt|rtf|*.rtf"; [/align]
[align=left] sfd.ShowDialog();[/align]
[align=left] string fn = sfd.FileName;[/align]
[align=left] if (fn != "")[/align]
[align=left] {[/align]
[align=left] this.richTextBox1.SaveFile(fn,RichTextBoxStreamType.PlainText);[/align]
[align=left] }[/align]
[align=left] }[/align]
[align=left] [/align]
[align=left] private void 字体ToolStripMenuItem_Click(object sender, EventArgs e)[/align]
[align=left] {[/align]
[align=left] FontDialog zt = new FontDialog();[/align]
[align=left] zt.Font=richTextBox1.SelectionFont;[/align]
[align=left] if (zt.ShowDialog() == DialogResult.OK)[/align]
[align=left] richTextBox1.SelectionFont = zt.Font;[/align]
[align=left] }[/align]
[align=left] [/align]
[align=left] private void 颜色ToolStripMenuItem_Click(object sender, EventArgs e)[/align]
[align=left] {[/align]
[align=left] ColorDialog afo = new ColorDialog();[/align]
[align=left] afo.Color= richTextBox1.SelectionColor;[/align]
[align=left] if (afo.ShowDialog() == DialogResult.OK)[/align]
[align=left] richTextBox1.SelectionColor = afo.Color;[/align]
[align=left] [/align]
[align=left] }[/align]
[align=left] [/align]
[align=left] private void 删除ToolStripMenuItem_Click(object sender, EventArgs e)[/align]
[align=left] {[/align]
[align=left] this.richTextBox1.SelectedText = "";[/align]
[align=left] }[/align]
[align=left] [/align]
[align=left] private void 时间日期ToolStripMenuItem_Click(object sender, EventArgs e)[/align]
[align=left] {[/align]
[align=left] this.richTextBox1.SelectedText += DateTime.Now.ToString();[/align]
[align=left] }[/align]
[align=left] [/align]
[align=left] private void Form1_Load(object sender, EventArgs e)[/align]
[align=left] {[/align]
[align=left] [/align]
[align=left] }[/align]
[align=left] [/align]
[align=left] private void timer1_Tick(object sender, EventArgs e)[/align]
[align=left] {[/align]
[align=left] this.label1.Text = DateTime.Now.ToString();[/align]
[align=left] }[/align]
[align=left] }[/align]
[align=left] }[/align]