东北大学秦皇岛分校计算机专业-c#实验报告.docx

实验一 控件和窗体实验结果截图：运行之后显示MyForm点击“打开form1”按钮,出现“Form1”是一个简单的加减计算器，能够实现连加、连减以及多项加减操作核心代码如下：/计算private void calulate(Stack numbers, Stack opraters) while (numbers.ToArray().Length = 2 & opraters.ToArray().Length = 1) int opData1 = numbers.Pop(); int opData2 = numbers.Pop(); string oper = opraters.Pop(); if (oper.Equals(+) opData1 += opData2; numbers.Push(opData1); else if (oper.Equals(-) opData2 -= opData1; numbers.Push(opData2); /按下“=“进行求解计算 private void button12_Click(object sender, EventArgs e) string data = richTextBox1.Text+=; char datas = data.ToCharArray(); Stack numbers = new Stack(); Stack opraters = new Stack(); string tempData = null; for (int i = 0; i = 2 &opraters.ToArray().Length = 1) calulate(numbers, opraters)； opraters.Push(datasi.ToString(); else if (datasi.Equals(-) numbers.Push(Int32.Parse(tempData); tempData = null; if (numbers.ToArray().Length = 2 & opraters.ToArray().Length = 1) calulate(numbers, opraters); opraters.Push(datasi.ToString(); else if (datasi.Equals(=) numbers.Push(Int32.Parse(tempData); tempData = null; if (numbers.ToArray().Length = 2 & opraters.ToArray().Length = 1) calulate(numbers, opraters); richTextBox1.Text = numbers.Pop().ToString(); 实验二 目录与文件实验运行结果截图:运行之后的主界面：功能一：打开文件并显示功能一的核心代码： private void 打开ToolStripMenuItem_Click(object sender, EventArgs e) OpenFileDialog open = new OpenFileDialog(); open.InitialDirectory = Environment.SpecialFolder.MyComputer.ToString(); if (open.ShowDialog() = DialogResult.OK) string path = open.FileName; if (File.Exists(path) using (StreamReader sr = new StreamReader(path, Encoding.Default) string line; while (line = sr.ReadLine() != null) ResultText.Text += line; 功能二：可以将文本编辑框中的文字保存为一个文件功能二的核心代码： private void 保存ToolStripMenuItem_Click(object sender, EventArgs e) SaveFileDialog save = new SaveFileDialog(); save.InitialDirectory = e:; if (save.ShowDialog() = DialogResult.OK) string path = save.FileName+.txt; using (StreamWriter sw = new StreamWriter(path) sw.Write(ResultText.Text); 实验三 图形图像处理实验结果截图：功能：可以读取一个位图并显示，通过点击上下左右按钮，可以调整图片的位置，通过点击放大缩小，可以缩放图片向左移动向右移动向上移动向下移动：放大:缩小：代码见电子附件；实验四 数据操作实验运行结果截图：查询：功能核心代码：/查询 private void button2_Click(object sender, EventArgs e) string connStr = Properties.Settings.Default.Database1ConnectionString;/ SqlConnection conn = new SqlConnection(connStr); string sql = select * from Table1 where 姓名= + textBox1.Text + ; adapter = new SqlDataAdapter(sql, conn); SqlCommandBuilder builder = new SqlCommandBuilder(adapter); adapter.InsertCommand = builder.GetInsertCommand(); adapter.DeleteCommand = builder.GetDeleteCommand(); adapter.UpdateCommand = builder.GetUpdateCommand(); table = new DataTable(); adapter.Fill(table); dataGridView1.DataSource = table; conn.Close(); 修改并保存：核心代码 private void button1_Click(object s