c#記事本實(shí)驗(yàn)報(bào)告

1、目 錄一、系統(tǒng)概要設(shè)計(jì)1二、系統(tǒng)詳細(xì)設(shè)計(jì)1三、系統(tǒng)實(shí)現(xiàn)與測(cè)試（或調(diào)試）5四、分析與總結(jié)6參考文獻(xiàn)6天津科技大學(xué)計(jì)算機(jī)學(xué)院面向?qū)ο蟪绦蛟O(shè)計(jì)課程設(shè)計(jì)報(bào)告一、系統(tǒng)概要設(shè)計(jì)本實(shí)驗(yàn)的目的是建立一個(gè)文本編譯器，同時(shí)介紹控件的用法。首先使用RichTeextBox控件可用來(lái)輸入和編輯文本。其次是實(shí)現(xiàn)剪切板功能。通過(guò)剪切板可以完成數(shù)據(jù)的剪切，復(fù)制，粘貼等功能。然后實(shí)現(xiàn)保存打開(kāi)功能。在文件下彈出，新建，打開(kāi)，關(guān)閉，保存。修改字體使用的是字體對(duì)話框FontDialog，然后選擇指定字體就行了。最后是實(shí)現(xiàn)打印功能，PrintDocument組件是用于完成打印的類。最后代碼實(shí)現(xiàn)所有功能，這就是本實(shí)驗(yàn)的設(shè)計(jì)思路。二、系

2、統(tǒng)詳細(xì)設(shè)計(jì)1、新建項(xiàng)目。放置RichTextBox控件到窗體。屬性Name=richTextBox1,Dock=Fill,Text=”2、放置MenuStrip控件到窗體。為菜單增加頂級(jí)菜單：編輯，Name為mainMenuEdit，為其彈出菜單增加菜單項(xiàng)：剪切、復(fù)制、粘貼、撤銷，屬性Name分別為：menuItemEditCut、menuItemEditCopy、menuItemEditPaste、menuItemEditUndo。為各個(gè)菜單項(xiàng)增加單擊事件處理函數(shù)如下：private void menuItemEditCut_Click(object sender, EventArgs e)

3、 richTextBox1.Cut(); private void menuItemEditCopy_Click(object sender, EventArgs e) richTextBox1.Copy(); private void menuItemEditPaste_Click(object sender, EventArgs e) richTextBox1.Paste(); private void menuItemUndo_Click(object sender, EventArgs e) richTextBox1.Undo(); 3、運(yùn)行，輸入一些字符后，選中一段實(shí)驗(yàn)復(fù)制，剪切，粘

4、貼，撤銷等功能。首先是復(fù)制：4、實(shí)現(xiàn)存取文件功能：頂級(jí)菜單的彈出菜單中一般包括如下菜單項(xiàng)：新建、打開(kāi)、關(guān)閉、保存等。首先放置OpenFileDialog控件和SaveFileDialog控件到窗體中。為菜單增加頂級(jí)菜單：文件，為其彈出菜單增加菜單項(xiàng)：新建、打開(kāi)、保存、退出。修改這些菜單的Name屬性分別為：mainMenuFile、menuItemFileNew、menuItemFileOpen、menuItemFileSave、menuItemFileExit。在Form1類中定義變量：string s_FileName=”，記錄當(dāng)前編輯的文件名，如果字符串為空，表示還未記錄文件名，編輯的文

5、件沒(méi)有名字，當(dāng)單擊“保存”保存文件時(shí)，要請(qǐng)用戶輸入文件名。為文件“新建”菜單增加單擊事件處理函數(shù)：private void menuItemFileNew_Click(object sender, EventArgs e) richTextBox1.Text = "" s_FileName = ""/新?建¡§文?件t沒(méi)?有®D文?件t名? 為“打開(kāi)”菜單增加單擊事件處理函數(shù)：private void menuItemFileOpen_Click(object sender, EventArgs e) if (openFil

6、eDialog1.ShowDialog() = DialogResult.OK) richTextBox1.LoadFile(openFileDialog1.FileName, RichTextBoxStreamType.PlainText); 為“保存”菜單增加單擊事件處理函數(shù)：private void menuItemFileSave_Click(object sender, EventArgs e) if (saveFileDialog1.ShowDialog() = DialogResult.OK) saveFileDialog1.FilterIndex = 1; s_FileName

7、 = saveFileDialog1.FileName; richTextBox1.SaveFile(saveFileDialog1.FileName, RichTextBoxStreamType.PlainText); 文件“退出”菜單增加事件處理函數(shù)：private void menuItemFileExit_Click(object sender, EventArgs e) Close(); 修改字體，放置FontDialog控件到窗體，屬性Name=fontDialog1.為菜單增加頂級(jí)菜單：格式，屬性Name為mainMenuModel，為其彈出菜單增加子菜單：字體，屬性Name為m

8、enuItemModelFont，為“字體”菜單增加單擊菜單處理函數(shù)如下：private void menuItemModelFont_Click(object sender, EventArgs e) if (fontDialog1.ShowDialog() = DialogResult.OK) richTextBox1.SelectionFont = fontDialog1.Font; 效果如下：實(shí)現(xiàn)打印功能：PrintDocument組件是用于完成打印的類。在主窗體文件Form1.cs中的最后一個(gè)using語(yǔ)句之后增加語(yǔ)句：using System.IO; /處理文件必須引入的命名空間u

9、sing System.Drawing.Printing; /打印必須引用的命名空間 在主窗體Form1類中增加變量：StringReader streamToPrint=null。打印的文件為StringReader streamToPrint=null。在主窗體Form1類中增加打印使用的字體的變量：Font printFont。放置PrintDocument控件到窗體，屬性name為printDocument1.打印所使用的代碼：private void printDocument1_BeginPrint(object sender, PrintPageEventArgs e) prin

10、tFont = richTextBox1.Font; streamToPrint = new StringReader(richTextBox1.Text); private void printDocument1_PrintPage(object sender, PrintPageEventArgs e) float linesPerPage = 0; float yPos = 0; int count = 0; float leftMargin = e.MarginBounds.Left; float topMargin = e.MarginBounds.Top; string line

11、= null; linesPerPage = e.MarginBounds.Height / printFont.GetHeight(e.Graphics); while (count < linesPerPage && (line = streamToPrint.ReadLine() != null) yPos = topMargin + (count * printFont.GetHeight(e.Graphics); e.Graphics.DrawString(line, printFont, Brushes.Black, leftMargin, yPos, new

12、 StringFormat(); count+; if (line != null) e.HasMorePages = true; else e.HasMorePages = false; private void 打䨰印®?ToolStripMenuItem_Click(object sender, EventArgs e) printDialog1.Document = printDocument1; if (printDialog1.ShowDialog(this) = DialogResult.OK) printDocument1.Print

13、(); private void printDocument1_EndPrint(object sender, PrintPageEventArgs e) if (streamToPrint != null) streamToPrint.Close(); 三、系統(tǒng)實(shí)現(xiàn)與測(cè)試（或調(diào)試）實(shí)現(xiàn)代碼：namespace 記?事º?本À? public partial class Form1 : Form string s_FileName = "" StringReader streamToPrint = null; System.Drawing.Font pr

14、intFont; public Form1() InitializeComponent(); private void richTextBox1_TextChanged(object sender, EventArgs e) private void 剪?切DToolStripMenuItem_Click(object sender, EventArgs e) private void menuItemEditCut_Click(object sender, EventArgs e) richTextBox1.Cut(); private void menuItemEditCopy_Click

15、(object sender, EventArgs e) richTextBox1.Copy(); private void menuItemEditPaste_Click(object sender, EventArgs e) richTextBox1.Paste(); private void menuItemUndo_Click(object sender, EventArgs e) richTextBox1.Undo(); private void openFileDialog1_FileOk(object sender, CancelEventArgs e) private void

16、 mainMenuFile_Click(object sender, EventArgs e) private void menuItemFileNew_Click(object sender, EventArgs e) richTextBox1.Text = "" s_FileName = "" private void menuItemFileOpen_Click(object sender, EventArgs e) if (openFileDialog1.ShowDialog() = DialogResult.OK) richTextBox1.L

17、oadFile(openFileDialog1.FileName, RichTextBoxStreamType.PlainText); private void menuItemFileSave_Click(object sender, EventArgs e) if (saveFileDialog1.ShowDialog() = DialogResult.OK) saveFileDialog1.Filter = "純ä?文?本À?文?件t（ꡧ*.txt)|*.txt|所¨´有®D文?件t（ê

18、;¡§*.*）ê?|*.*" saveFileDialog1.FilterIndex = 1; s_FileName = saveFileDialog1.FileName; richTextBox1.SaveFile(saveFileDialog1.FileName, RichTextBoxStreamType.PlainText); private void menuItemFileExit_Click(object sender, EventArgs e) Close(); private void fontDialog1_Apply(object

19、sender, EventArgs e) private void menuItemModelFont_Click(object sender, EventArgs e) if (fontDialog1.ShowDialog() = DialogResult.OK) richTextBox1.SelectionFont = fontDialog1.Font; private void printDocument1_BeginPrint(object sender, PrintPageEventArgs e) printFont = richTextBox1.Font;? streamToPri

20、nt = new StringReader(richTextBox1.Text); private void printDocument1_PrintPage(object sender, PrintPageEventArgs e) float linesPerPage = 0; float yPos = 0; int count = 0; float leftMargin = e.MarginBounds.Left; float topMargin = e.MarginBounds.Top; string line = null; linesPerPage = e.MarginBounds.Height / printFont.GetHeight(e.Graphics); while (count < linesPerPage && (line = streamToPrint.ReadLine() != null) yPos = topMargin + (count * printFont.GetHeight(e.Graphics); e.Graphics.DrawString(line, printFont, Brushe