实验1 数字波形的生成

设计图：

图表设计参考：
C#之Chart控件系列教程——一
对C#Chart控件使用整理
C#–图表控件（Chart）

源码：

namespace WindowsFormsApp1
{partial class Form1{/// <summary>/// 必需的设计器变量。/// </summary>private System.ComponentModel.IContainer components = null;/// <summary>/// 清理所有正在使用的资源。/// </summary>/// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>protected override void Dispose(bool disposing){if (disposing && (components != null)){components.Dispose();}base.Dispose(disposing);}#region Windows 窗体设计器生成的代码/// <summary>/// 设计器支持所需的方法 - 不要修改/// 使用代码编辑器修改此方法的内容。/// </summary>private void InitializeComponent(){System.Windows.Forms.DataVisualization.Charting.ChartArea chartArea4 = new System.Windows.Forms.DataVisualization.Charting.ChartArea();System.Windows.Forms.DataVisualization.Charting.ChartArea chartArea5 = new System.Windows.Forms.DataVisualization.Charting.ChartArea();System.Windows.Forms.DataVisualization.Charting.ChartArea chartArea6 = new System.Windows.Forms.DataVisualization.Charting.ChartArea();System.Windows.Forms.DataVisualization.Charting.Legend legend2 = new System.Windows.Forms.DataVisualization.Charting.Legend();System.Windows.Forms.DataVisualization.Charting.Series series4 = new System.Windows.Forms.DataVisualization.Charting.Series();System.Windows.Forms.DataVisualization.Charting.Series series5 = new System.Windows.Forms.DataVisualization.Charting.Series();System.Windows.Forms.DataVisualization.Charting.Series series6 = new System.Windows.Forms.DataVisualization.Charting.Series();this.button1 = new System.Windows.Forms.Button();this.label1 = new System.Windows.Forms.Label();this.inputA = new System.Windows.Forms.TextBox();this.inputB = new System.Windows.Forms.TextBox();this.label2 = new System.Windows.Forms.Label();this.outputF = new System.Windows.Forms.TextBox();this.label3 = new System.Windows.Forms.Label();this.chart1 = new System.Windows.Forms.DataVisualization.Charting.Chart();this.label4 = new System.Windows.Forms.Label();this.operators = new System.Windows.Forms.TextBox();((System.ComponentModel.ISupportInitialize)(this.chart1)).BeginInit();this.SuspendLayout();//// button1//this.button1.Location = new System.Drawing.Point(615, 78);this.button1.Name = "button1";this.button1.Size = new System.Drawing.Size(360, 60);this.button1.TabIndex = 0;this.button1.Text = "开始计算(非逻辑只运算A)";this.button1.UseVisualStyleBackColor = true;this.button1.Click += new System.EventHandler(this.button1_Click);//// label1//this.label1.AutoSize = true;this.label1.Location = new System.Drawing.Point(62, 29);this.label1.Name = "label1";this.label1.Size = new System.Drawing.Size(17, 18);this.label1.TabIndex = 1;this.label1.Text = "A";//// inputA//this.inputA.Location = new System.Drawing.Point(115, 25);this.inputA.Name = "inputA";this.inputA.Size = new System.Drawing.Size(245, 28);this.inputA.TabIndex = 2;//// inputB//this.inputB.Location = new System.Drawing.Point(797, 29);this.inputB.Name = "inputB";this.inputB.Size = new System.Drawing.Size(245, 28);this.inputB.TabIndex = 4;//// label2//this.label2.AutoSize = true;this.label2.Location = new System.Drawing.Point(744, 33);this.label2.Name = "label2";this.label2.Size = new System.Drawing.Size(17, 18);this.label2.TabIndex = 3;this.label2.Text = "B";//// outputF//this.outputF.Location = new System.Drawing.Point(115, 95);this.outputF.Name = "outputF";this.outputF.Size = new System.Drawing.Size(361, 28);this.outputF.TabIndex = 6;//// label3//this.label3.AutoSize = true;this.label3.Location = new System.Drawing.Point(62, 99);this.label3.Name = "label3";this.label3.Size = new System.Drawing.Size(17, 18);this.label3.TabIndex = 5;this.label3.Text = "F";//// chart1//chartArea4.Name = "A";chartArea5.Name = "B";chartArea6.Name = "F";this.chart1.ChartAreas.Add(chartArea4);this.chart1.ChartAreas.Add(chartArea5);this.chart1.ChartAreas.Add(chartArea6);legend2.Name = "Legend1";legend2.Title = "图例";this.chart1.Legends.Add(legend2);this.chart1.Location = new System.Drawing.Point(65, 154);this.chart1.Name = "chart1";this.chart1.Palette = System.Windows.Forms.DataVisualization.Charting.ChartColorPalette.None;series4.ChartArea = "A";series4.IsValueShownAsLabel = true;series4.Legend = "Legend1";series4.Name = "A";series5.ChartArea = "B";series5.IsValueShownAsLabel = true;series5.Legend = "Legend1";series5.Name = "B";series6.ChartArea = "F";series6.IsValueShownAsLabel = true;series6.Legend = "Legend1";series6.Name = "F";this.chart1.Series.Add(series4);this.chart1.Series.Add(series5);this.chart1.Series.Add(series6);this.chart1.Size = new System.Drawing.Size(952, 388);this.chart1.TabIndex = 7;this.chart1.Text = "chart1";//// label4//this.label4.AutoSize = true;this.label4.Location = new System.Drawing.Point(447, 35);this.label4.Name = "label4";this.label4.Size = new System.Drawing.Size(62, 18);this.label4.TabIndex = 8;this.label4.Text = "运算符";//// operators//this.operators.Location = new System.Drawing.Point(533, 30);this.operators.Name = "operators";this.operators.Size = new System.Drawing.Size(130, 28);this.operators.TabIndex = 9;//// Form1//this.AutoScaleDimensions = new System.Drawing.SizeF(9F, 18F);this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;this.ClientSize = new System.Drawing.Size(1093, 554);this.Controls.Add(this.operators);this.Controls.Add(this.label4);this.Controls.Add(this.chart1);this.Controls.Add(this.outputF);this.Controls.Add(this.label3);this.Controls.Add(this.inputB);this.Controls.Add(this.label2);this.Controls.Add(this.inputA);this.Controls.Add(this.label1);this.Controls.Add(this.button1);this.Name = "Form1";this.Text = "与或非逻辑运算";this.Load += new System.EventHandler(this.Form1_Load);((System.ComponentModel.ISupportInitialize)(this.chart1)).EndInit();this.ResumeLayout(false);this.PerformLayout();}#endregionprivate System.Windows.Forms.Button button1;private System.Windows.Forms.Label label1;private System.Windows.Forms.TextBox inputA;private System.Windows.Forms.TextBox inputB;private System.Windows.Forms.Label label2;private System.Windows.Forms.TextBox outputF;private System.Windows.Forms.Label label3;private System.Windows.Forms.DataVisualization.Charting.Chart chart1;private System.Windows.Forms.Label label4;private System.Windows.Forms.TextBox operators;}
}

程序逻辑实现代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;namespace WindowsFormsApp1
{public partial class Form1 : Form{public Form1(){InitializeComponent();}private void Form1_Load(object sender, EventArgs e){}private void button1_Click(object sender, EventArgs e){StringBuilder sb = new StringBuilder();string a = inputA.Text;int[] a1 = new int[a.Length];string b = inputB.Text;int[] b1 = new int[b.Length];int[] m = new int[a.Length];string c = null;bool flag = true;int[] vs = new int[a.Length];string o = operators.Text;int mark = 0;if (o.Equals("&") || o.Equals("与")) mark = 1;else if (o.Equals("|") || o.Equals("或")) mark = 2;else if (o.Equals("~") || o.Equals("非")) mark = 3;else if (o.Equals("异或")) mark = 4;else if (o.Equals("同或")) mark = 5;if(mark == 3){for(int i = 0; i < a.Length; i++){a1[i] = a[i] == '1' ? 1 : 0;if (a[i] != '0' && a[i] != '1'){flag = false;break;}else{a1[i] = a[i] == '1' ? 1 : 0;m[i] = a[i] == '1' ? 0 : 1;}}for(int i = 0; i < m.Length; i++)sb.Append(m[i]);c = flag == true ? sb.ToString() : "非逻辑运算时，请勿在A中输入无关字符";}else{if(a.Length != b.Length){c = "字符串长度不相等，请重新输入";flag = false;}else{for(int i = 0; i < a.Length; i++){a1[i] = a[i] == '1' ? 1 : 0;b1[i] = b[i] == '1' ? 1 : 0;if((a[i] != '1' && a[i] != '0') || (b[i] != '1' && b[i] != '0')){flag = false;break;}else{switch (mark){case 1:if (a[i] == '1' && b[i] == '1') m[i] = 1;else m[i] = 0; break;case 2:if (a[i] == '1' || b[i] == '1') m[i] = 1;else m[i] = 0; break;case 4:m[i] = a[i] == b[i] ? 1 : 0; break;case 5:m[i] = a[i] == b[i] ? 0 : 1; break;}}}for (int i = 0; i < m.Length; i++)sb.Append(m[i]);//形参是啥类型都行，string都行c = flag == true ? sb.ToString() : "请勿输入无关字符";}}/*if (a.Length != b.Length && mark != 3)c = "字符串长度不相等，请重新输入";else{for (int i = 0; i < a.Length; i++){a1[i] = a[i] == '1' ? 1 : 0;b1[i] = b[i] == '1' ? 1 : 0;if (a[i] != '1' && a[i] != '0'){flag = false;break;}else if (b[i] != '1' && b[i] != '0'){if(mark != 3){flag = false;break;}if(mark == 3){if (a[i] == '1') m[i] = 0;else m[i] = 1;continue;}}else{switch (mark){case 1: if (a[i] == '1' && b[i] == '1') m[i] = 1;else m[i] = 0;break;case 2:if (a[i] == '1' || b[i] == '1') m[i] = 1;else m[i] = 0; break;case 4:m[i] = a[i] == b[i] ? 1 : 0; break;case 5:m[i] = a[i] == b[i] ? 0 : 1; break;}}}StringBuilder sb = new StringBuilder();for (int i = 0; i < m.Length; i++){sb.Append(m[i]);//形参是啥类型都行，string都行}c = flag == true ? sb.ToString() : "请勿输入无关字符";if(mark == 3){for(int i = 0; i < a.Length; i++){if (a[i] != '1' && a[i] != '0'){c = "非逻辑运算时，请勿在A中输入无关字符";break;}else c = sb.ToString();}}}*/outputF.Text = c;if(flag == false){chart1.Series[0].Points.DataBindY(vs);chart1.Series[1].Points.DataBindY(vs);chart1.Series[2].Points.DataBindY(vs);}else if(flag == true && mark == 3){chart1.Series[0].Points.DataBindY(a1);chart1.Series[1].Points.DataBindY(vs);chart1.Series[2].Points.DataBindY(m);}else{chart1.Series[0].Points.DataBindY(a1);chart1.Series[1].Points.DataBindY(b1);chart1.Series[2].Points.DataBindY(m);}}}
}

实验2 电子钢琴

设计图

程序逻辑实现代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Runtime.InteropServices;namespace 电子钢琴
{public partial class Form1 : Form{public Form1(){InitializeComponent();}private void button1_Click(object sender, EventArgs e){Console.Beep(131, 250);}private void button2_Click(object sender, EventArgs e){Console.Beep(147, 250);}private void button3_Click(object sender, EventArgs e){Console.Beep(165, 250);}private void button4_Click(object sender, EventArgs e){Console.Beep(175, 250);}private void button5_Click(object sender, EventArgs e){Console.Beep(196, 250);}private void button6_Click(object sender, EventArgs e){Console.Beep(220, 250);}private void button7_Click(object sender, EventArgs e){Console.Beep(247, 250);}private void button8_Click(object sender, EventArgs e){Console.Beep(262, 250);}private void button9_Click(object sender, EventArgs e){Console.Beep(296, 250);}private void button10_Click(object sender, EventArgs e){Console.Beep(330, 250);}private void button11_Click(object sender, EventArgs e){Console.Beep(349, 250);}private void button12_Click(object sender, EventArgs e){Console.Beep(392, 250);}private void button13_Click(object sender, EventArgs e){Console.Beep(440, 250);}private void button14_Click(object sender, EventArgs e){Console.Beep(494, 250);}private void button15_Click(object sender, EventArgs e){Console.Beep(523, 250);}private void button16_Click(object sender, EventArgs e){Console.Beep(587, 250);}private void button17_Click(object sender, EventArgs e){Console.Beep(659, 250);}private void button18_Click(object sender, EventArgs e){Console.Beep(698, 250);}private void button20_Click(object sender, EventArgs e){Console.Beep(784, 250);}private void button19_Click(object sender, EventArgs e){Console.Beep(880, 250);}private void button21_Click(object sender, EventArgs e){Console.Beep(988, 250);}private void button22_Click(object sender, EventArgs e){for (int i = 0; i < 10; i++){Console.Beep(500 + 100 * i, 500);}}private void button23_Click(object sender, EventArgs e){string music = Music.Text;if (music.Equals("天空之城")){}else if (music.Equals("欢乐颂")){JiePai.Text = "2222222222222";YinDiao.Text = "7712217655677";YinJie.Text = "  ++++       ";}else if (music.Equals("皎洁的笑颜")){JiePai.Text = "2222222222222222222222222222222";YinDiao.Text = "3535354535353512353535455545352";YinJie.Text = "+ + + + + + + +++ + + + + + + +";}string jiepai = JiePai.Text;string yindiao = YinDiao.Text;string yinjie = YinJie.Text;int[] a = new int[jiepai.Length];int[] b = new int[yindiao.Length];if (a.Length != b.Length ||a.Length != yinjie.Length ||b.Length != yinjie.Length)MessageBox.Show("长度不一致，请重新输入", "出现错误",MessageBoxButtons.OKCancel);else{Boolean flag = true;for (int i = 0; i < a.Length; i++){a[i] = Convert.ToInt32(jiepai[i] - 48);b[i] = Convert.ToInt32(yindiao[i] - 48);if (yinjie[i] != '+' && yinjie[i] != ' ' && yinjie[i] != '-'){MessageBox.Show("有非法字符，请重新输入", "出现错误",MessageBoxButtons.OKCancel);flag = false;break;}}if (flag){for (int i = 0; i < a.Length; i++){if (yinjie[i] == '-'){switch (b[i]){case 1: Console.Beep(131, 250 * a[i]); break;case 2: Console.Beep(147, 250 * a[i]); break;case 3: Console.Beep(165, 250 * a[i]); break;case 4: Console.Beep(175, 250 * a[i]); break;case 5: Console.Beep(196, 250 * a[i]); break;case 6: Console.Beep(220, 250 * a[i]); break;case 7: Console.Beep(247, 250 * a[i]); break;}}else if (yinjie[i] == ' '){switch (b[i]){case 1: Console.Beep(262, 250 * a[i]); break;case 2: Console.Beep(296, 250 * a[i]); break;case 3: Console.Beep(330, 250 * a[i]); break;case 4: Console.Beep(349, 250 * a[i]); break;case 5: Console.Beep(392, 250 * a[i]); break;case 6: Console.Beep(440, 250 * a[i]); break;case 7: Console.Beep(494, 250 * a[i]); break;}}else if (yinjie[i] == '+'){switch (b[i]){case 1: Console.Beep(523, 250 * a[i]); break;case 2: Console.Beep(587, 250 * a[i]); break;case 3: Console.Beep(659, 250 * a[i]); break;case 4: Console.Beep(698, 250 * a[i]); break;case 5: Console.Beep(784, 250 * a[i]); break;case 6: Console.Beep(880, 250 * a[i]); break;case 7: Console.Beep(988, 250 * a[i]); break;}}}}}}}
}

实验3 函数信号发生器

设计图

源码

namespace 函数信号发生器
{partial class Form1{/// <summary>/// 必需的设计器变量。/// </summary>private System.ComponentModel.IContainer components = null;/// <summary>/// 清理所有正在使用的资源。/// </summary>/// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>protected override void Dispose(bool disposing){if (disposing && (components != null)){components.Dispose();}base.Dispose(disposing);}#region Windows 窗体设计器生成的代码/// <summary>/// 设计器支持所需的方法 - 不要修改/// 使用代码编辑器修改此方法的内容。/// </summary>private void InitializeComponent(){System.Windows.Forms.DataVisualization.Charting.ChartArea chartArea1 = new System.Windows.Forms.DataVisualization.Charting.ChartArea();System.Windows.Forms.DataVisualization.Charting.Series series1 = new System.Windows.Forms.DataVisualization.Charting.Series();System.Windows.Forms.DataVisualization.Charting.Series series2 = new System.Windows.Forms.DataVisualization.Charting.Series();System.Windows.Forms.DataVisualization.Charting.Series series3 = new System.Windows.Forms.DataVisualization.Charting.Series();System.Windows.Forms.DataVisualization.Charting.Series series4 = new System.Windows.Forms.DataVisualization.Charting.Series();System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Form1));this.panel1 = new System.Windows.Forms.Panel();this.A = new System.Windows.Forms.TextBox();this.f = new System.Windows.Forms.TextBox();this.label2 = new System.Windows.Forms.Label();this.label1 = new System.Windows.Forms.Label();this.button4 = new System.Windows.Forms.Button();this.button3 = new System.Windows.Forms.Button();this.button2 = new System.Windows.Forms.Button();this.button1 = new System.Windows.Forms.Button();this.panel2 = new System.Windows.Forms.Panel();this.chart1 = new System.Windows.Forms.DataVisualization.Charting.Chart();this.textBox1 = new System.Windows.Forms.TextBox();this.panel1.SuspendLayout();this.panel2.SuspendLayout();((System.ComponentModel.ISupportInitialize)(this.chart1)).BeginInit();this.SuspendLayout();//// panel1//this.panel1.Controls.Add(this.textBox1);this.panel1.Controls.Add(this.A);this.panel1.Controls.Add(this.f);this.panel1.Controls.Add(this.label2);this.panel1.Controls.Add(this.label1);this.panel1.Controls.Add(this.button4);this.panel1.Controls.Add(this.button3);this.panel1.Controls.Add(this.button2);this.panel1.Controls.Add(this.button1);this.panel1.Dock = System.Windows.Forms.DockStyle.Top;this.panel1.Location = new System.Drawing.Point(0, 0);this.panel1.Name = "panel1";this.panel1.Size = new System.Drawing.Size(995, 135);this.panel1.TabIndex = 0;//// A//this.A.Location = new System.Drawing.Point(821, 97);this.A.Name = "A";this.A.Size = new System.Drawing.Size(135, 28);this.A.TabIndex = 7;//// f//this.f.Location = new System.Drawing.Point(821, 56);this.f.Name = "f";this.f.Size = new System.Drawing.Size(135, 28);this.f.TabIndex = 6;//// label2//this.label2.AutoSize = true;this.label2.Location = new System.Drawing.Point(725, 100);this.label2.Name = "label2";this.label2.Size = new System.Drawing.Size(80, 18);this.label2.TabIndex = 5;this.label2.Text = "功放(倍)";//// label1//this.label1.AutoSize = true;this.label1.Location = new System.Drawing.Point(725, 59);this.label1.Name = "label1";this.label1.Size = new System.Drawing.Size(80, 18);this.label1.TabIndex = 4;this.label1.Text = "倍频(倍)";//// button4//this.button4.Location = new System.Drawing.Point(548, 51);this.button4.Name = "button4";this.button4.Size = new System.Drawing.Size(142, 74);this.button4.TabIndex = 3;this.button4.Text = "三角波";this.button4.UseVisualStyleBackColor = true;this.button4.Click += new System.EventHandler(this.button4_Click);//// button3//this.button3.Location = new System.Drawing.Point(370, 51);this.button3.Name = "button3";this.button3.Size = new System.Drawing.Size(142, 74);this.button3.TabIndex = 2;this.button3.Text = "方波";this.button3.UseVisualStyleBackColor = true;this.button3.Click += new System.EventHandler(this.button3_Click);//// button2//this.button2.Location = new System.Drawing.Point(207, 51);this.button2.Name = "button2";this.button2.Size = new System.Drawing.Size(142, 74);this.button2.TabIndex = 1;this.button2.Text = "cos";this.button2.UseVisualStyleBackColor = true;this.button2.Click += new System.EventHandler(this.button2_Click);//// button1//this.button1.Location = new System.Drawing.Point(41, 53);this.button1.Name = "button1";this.button1.Size = new System.Drawing.Size(142, 71);this.button1.TabIndex = 0;this.button1.Text = "sin";this.button1.UseVisualStyleBackColor = true;this.button1.Click += new System.EventHandler(this.button1_Click);//// panel2//this.panel2.Controls.Add(this.chart1);this.panel2.Dock = System.Windows.Forms.DockStyle.Fill;this.panel2.Location = new System.Drawing.Point(0, 135);this.panel2.Name = "panel2";this.panel2.Size = new System.Drawing.Size(995, 492);this.panel2.TabIndex = 1;//// chart1//chartArea1.AxisX.Enabled = System.Windows.Forms.DataVisualization.Charting.AxisEnabled.False;chartArea1.AxisX.MajorGrid.Enabled = false;chartArea1.Name = "ChartArea1";this.chart1.ChartAreas.Add(chartArea1);this.chart1.Dock = System.Windows.Forms.DockStyle.Fill;this.chart1.Location = new System.Drawing.Point(0, 0);this.chart1.Name = "chart1";series1.ChartArea = "ChartArea1";series1.ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line;series1.Name = "Series1";series2.ChartArea = "ChartArea1";series2.ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line;series2.Name = "Series2";series3.ChartArea = "ChartArea1";series3.ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line;series3.Name = "Series3";series4.ChartArea = "ChartArea1";series4.ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line;series4.Name = "Series4";this.chart1.Series.Add(series1);this.chart1.Series.Add(series2);this.chart1.Series.Add(series3);this.chart1.Series.Add(series4);this.chart1.Size = new System.Drawing.Size(995, 492);this.chart1.TabIndex = 0;this.chart1.Text = "chart1";//// textBox1//this.textBox1.Location = new System.Drawing.Point(222, 12);this.textBox1.Name = "textBox1";this.textBox1.Size = new System.Drawing.Size(551, 28);this.textBox1.TabIndex = 8;this.textBox1.Text = "初始值：周期100，幅值4     若没有输入，倍频和功放均默认为1";//// Form1//this.AutoScaleDimensions = new System.Drawing.SizeF(9F, 18F);this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;this.ClientSize = new System.Drawing.Size(995, 627);this.Controls.Add(this.panel2);this.Controls.Add(this.panel1);this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));this.Name = "Form1";this.Text = "Form1";this.panel1.ResumeLayout(false);this.panel1.PerformLayout();this.panel2.ResumeLayout(false);((System.ComponentModel.ISupportInitialize)(this.chart1)).EndInit();this.ResumeLayout(false);}#endregionprivate System.Windows.Forms.Panel panel1;private System.Windows.Forms.Button button2;private System.Windows.Forms.Button button1;private System.Windows.Forms.Panel panel2;private System.Windows.Forms.DataVisualization.Charting.Chart chart1;private System.Windows.Forms.Button button4;private System.Windows.Forms.Button button3;private System.Windows.Forms.TextBox A;private System.Windows.Forms.TextBox f;private System.Windows.Forms.Label label2;private System.Windows.Forms.Label label1;private System.Windows.Forms.TextBox textBox1;}
}

程序逻辑实现代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;namespace 函数信号发生器
{public partial class Form1 : Form{public Form1(){InitializeComponent();}//清空当前的作图public void PointsClear(){for (int i = 0; i < chart1.Series.Count; i++){chart1.Series[i].Points.Clear();}}//尝试写出的String转double的代码(当然现在不用了。。。。。)
/*//将String转换为double格式public double stringToDouble(String str){bool negative = false;double sum = 0.0d;bool pointAppear = false;int count = 1;//用来记录小数点后几位if (str == null || str.Equals("")){throw new Exception("重新输入字符串");}for (int i = 0; i < str.Length; i++){//判断第一个字符是不是负号if (i == 0 && (str[0] == '-' || str[0] == '+')){if (str[i] == '-')negative = true;}else{//判断是否为小数点if (pointAppear == false && i != 0 && str[i] == '.'){pointAppear = true;}else if (str[i] >= '0' && str[i] <= '9'){if (i == 0 && str[i] == '0'){if (str[i + 1] != '.')throw new Exception("不合法字符串1");}if (i == 1 && str[i] == '0' && (str[0] == '-' || str[0] == '+')){if (str[i + 1] != '.')throw new Exception("不合法字符串2");}//整数部分if (pointAppear == false){sum = sum * 10 + (str[i] - '0');}else{sum = sum + Math.Pow(0.1, count) * (str[i] - '0');count++;}}else{throw new Exception("不合法字符串3");}}}return negative == true ? sum * (-1) : sum;}
*/private void button1_Click(object sender, EventArgs e){double frequence = (f.Text == "") ? 1 : double.Parse(f.Text);double magnification = (A.Text == "") ? 1 : double.Parse(A.Text);PointsClear();for (int i = 0; i < 1000; i++){double pointValue = magnification * Math.Sin(i * Math.PI / 180.0 * frequence);chart1.Series[0].Points.AddXY(i, pointValue);chart1.Series[0].BorderWidth = 5;chart1.Series[0].Color = Color.Red;chart1.ChartAreas[0].AxisX.Title = "x";chart1.ChartAreas[0].AxisY.Title = "y = f(x)";}}private void button2_Click(object sender, EventArgs e){double frequence = (f.Text == "") ? 1 : double.Parse(f.Text);double magnification = (A.Text == "") ? 1 : double.Parse(A.Text);PointsClear();for (int i = 0; i < 1000; i++){double pointValue = magnification * Math.Cos(i * Math.PI / 180.0 * frequence);chart1.Series[1].Points.AddXY(i, pointValue);chart1.Series[1].BorderWidth = 5;chart1.Series[1].Color = Color.Blue;}}private void button3_Click(object sender, EventArgs e){double frequence = (f.Text == "") ? 1 : double.Parse(f.Text);double magnification = (A.Text == "") ? 1 : double.Parse(A.Text);PointsClear();double T = 100 / frequence;//周期for (int i = 0; i < 1000; i++){double pointValue = i % T <= T / 2 ? 5 : -5;chart1.Series[2].Points.AddXY(i, pointValue * magnification);chart1.Series[2].BorderWidth = 5;chart1.Series[2].Color = Color.Green;}}private void button4_Click(object sender, EventArgs e){double frequence = (f.Text == "") ? 1 : double.Parse(f.Text);double magnification = (A.Text == "") ? 1 : double.Parse(A.Text);PointsClear();double T = 100;double k = 8 / T;int count = 0;double y;for (int i = 1; i <= 1000 * frequence; i++){y = (i % T <= T / 2) ? (k * i - 8.0 * count) : (8.0 * count - k * i);if ((i + T / 2) % T == 0.0) count++;chart1.Series[3].Points.AddXY(i, y * magnification);chart1.Series[3].BorderWidth = 5;chart1.Series[3].Color = Color.Yellow;}}}
}

最终效果

函数信号发生器

实验4 电路图的设计

共集-共集直接耦合放大电路

众所周知：基本共集放大电路
电压增益近似为1，输入阻抗近似为 β1⋅β2⋅RL′\ {\beta_1}\cdot {\beta_2}\cdot {R'_L}β1​⋅β2​⋅RL′​，输出阻抗​​​​​​​Ro=R01+rbe21+β2{R_o} = \frac{{R_0}_1 + {{r_b}_e}_2}{1+\beta_2}Ro​=1+β2​R0​1​+rb​e​2​​，其中Ro1=RS+rbe11+β1{{R_o}_1}= \frac{R_S+ {{r_b}_e}_1}{1+\beta_1}Ro​1​=1+β1​RS​+rb​e​1​​.

直流通路、交流通路、微变等效电路

公式结果

设计图

运行结果

一个小问题

这里运行的时候会有一个问题：R1R2R3的输入框跑到别的地方了
比如下面：

解决

1、窗口属性的设置

2、各个penal控件的属性设置：
MaxSize和MinSize都要跟Size大小一样

程序逻辑实现代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;namespace 电路图设计
{public partial class Form1 : Form{public Form1(){InitializeComponent();}private void button1_Click(object sender, EventArgs e){System.Diagnostics.Stopwatch stopwatch = new System.Diagnostics.Stopwatch();stopwatch.Start();double Vr = double.Parse(Vrms.Text);double f = double.Parse(Frequence.Text);double Beta = double.Parse(beta.Text);double Rbb = double.Parse(rbb.Text);double R1 = double.Parse(r1.Text);double R2 = double.Parse(r2.Text);double R3 = double.Parse(r3.Text);double RL = double.Parse(rl.Text);double IBQ1;double ICQ1;double VCEQ1;double VCEQ2;double Av1;double Av2;double Av;double Vo;double Ri1;double Ri2;double Ro1;double Ro2;double runTime;//各个数据的计算，包括输出波形的振幅IBQ1 = 1000 * (10.6 + (1 + Beta) * R3 * 0.7 / (R2 + (1 + Beta) * R3))/ ((1 + Beta) * (1 + Beta) * R3 * R2 / (R2 + (1 + Beta) * R3) + R1);double IBQ2 = ((1 + Beta) * IBQ1 * R2 - 700) / (R2 + (1 + Beta) * R3);ICQ1 = Beta * IBQ1 / 1000;VCEQ1 = 12 - (0.7 + (1 + Beta) * IBQ2 * R3 / 1000);VCEQ2 = 12 - (1 + Beta) * IBQ2 * R3 / 1000;double rbe1 = Rbb + 1000 * 26 / IBQ1;double rbe2 = Rbb + 1000 * 26 / IBQ2;Ri2 = rbe2 / 1000 + (1 + Beta) * R3 * RL / (R3 + RL);double Ri11 = rbe1 / 1000 + (1 + Beta) * R2 * Ri2 * (R2 + Ri2);Ri1 = R1 * Ri11 / (R1 + Ri11);Av1 = ((1 + Beta) * R2 * Ri1 / (R2 + Ri1)) / (rbe1 / 1000 + (1 + Beta) * R2 * Ri1 / (R2 + Ri1));Av2 = ((1 + Beta) * R3 * Ri2 / (R3 + Ri2)) / (rbe2 / 1000 + (1 + Beta) * R3 * Ri2 / (R3 + Ri2));Av = Av1 * Av2;Ro1 = (rbe1 / (1 + Beta)) * R2 / (rbe1 / (1 + Beta) + R2);Ro2 = ((rbe2 + Ro1) / (1 + Beta)) * R3 / (R3 + (rbe2 + Ro1) / (1 + Beta));Vo = Av * Vr;//绘制波形图，注意共集放大电路是同相的chart1.Series[0].Points.Clear();for (int i = 0; i < 1000; i++){double pointValue = Vo * Math.Sin(i * Math.PI / 180.0 * f);chart1.Series[0].Points.AddXY(i, pointValue);chart1.Series[0].BorderWidth = 1;chart1.Series[0].Color = Color.Red;chart1.ChartAreas[0].AxisX.Title = "x";chart1.ChartAreas[0].AxisY.Title = "y = f(x)";}Ibq1.Text = Convert.ToString(string.Format("{0:F2}", IBQ1));Icq1.Text = Convert.ToString(string.Format("{0:F2}", ICQ1));Vceq1.Text = Convert.ToString(string.Format("{0:F2}", VCEQ1));Vceq2.Text = Convert.ToString(string.Format("{0:F2}", VCEQ2));av1.Text = Convert.ToString(string.Format("{0:F2}", Av1));av2.Text = Convert.ToString(string.Format("{0:F2}", Av2));av.Text = Convert.ToString(string.Format("{0:F2}", Av));vo.Text = Convert.ToString(string.Format("{0:F2}", Vo));ri1.Text = Convert.ToString(string.Format("{0:F2}", Ri1));ri2.Text = Convert.ToString(string.Format("{0:F2}", Ri2));ro1.Text = Convert.ToString(string.Format("{0:F2}", Ro1));ro2.Text = Convert.ToString(string.Format("{0:F2}", Ro2));//DataGridViewint index = dataGridView1.Rows.Add();dataGridView1.Rows[index].Cells[0].Value = Vrms.Text;dataGridView1.Rows[index].Cells[1].Value = Frequence.Text;dataGridView1.Rows[index].Cells[2].Value = beta.Text;dataGridView1.Rows[index].Cells[3].Value = r1.Text;dataGridView1.Rows[index].Cells[4].Value = r2.Text;dataGridView1.Rows[index].Cells[5].Value = r3.Text;dataGridView1.Rows[index].Cells[6].Value = rl.Text;dataGridView1.Rows[index].Cells[7].Value = Ibq1.Text;dataGridView1.Rows[index].Cells[8].Value = Icq1.Text;dataGridView1.Rows[index].Cells[9].Value = Vceq1.Text;dataGridView1.Rows[index].Cells[10].Value = Vceq2.Text;dataGridView1.Rows[index].Cells[11].Value = av1.Text;dataGridView1.Rows[index].Cells[12].Value = av2.Text;dataGridView1.Rows[index].Cells[13].Value = av.Text;dataGridView1.Rows[index].Cells[14].Value = vo.Text;dataGridView1.Rows[index].Cells[15].Value = ri1.Text;dataGridView1.Rows[index].Cells[16].Value = ri2.Text;dataGridView1.Rows[index].Cells[17].Value = ro1.Text;dataGridView1.Rows[index].Cells[18].Value = ro2.Text;stopwatch.Stop();TimeSpan t = stopwatch.Elapsed;double runtime = t.TotalMilliseconds;Runtime.Text = Convert.ToString(string.Format("{0:F2}", runtime));dataGridView1.Rows[index].Cells[19].Value = Runtime.Text;}}
}

对数据库资料的学习和收集

C#数据库操作步骤，详细
C# 数据库介绍及基本操作
C# 数据库
一起来学C# 数据库（一）

菜鸟教程(老师推荐的)

实验5 解决专业问题


离散傅里叶变换

原理

离散傅里叶变换、快速傅里叶变换C#实现
离散傅里叶变换-DFT（FFT基础）

设计图

程序逻辑实现代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;namespace 解决专业问题
{public partial class Form1 : Form{public Form1(){InitializeComponent();}public void PointsClear(){for (int i = 0; i < chart1.Series.Count; i++){chart1.Series[i].Points.Clear();}for (int i = 0; i < chart2.Series.Count; i++){chart2.Series[i].Points.Clear();}}//离散傅里叶变换public static double[] dft(double[] array){int N = array.Length;//重排数据Complex[] Register = new Complex[N];Complex[] dest = new Complex[N];for (int i = 0; i < N; i++){Register[i] = new Complex(array[i], 0);}for (int k = 0; k < N; k++){Complex sum = new Complex();for (int n = 0; n < N; n++){sum += Register[n] * (new Complex(Math.Cos(2 * Math.PI / N * n * k), -1 * Math.Sin(2 * Math.PI / N * n * k)));}dest[k] = sum;}double[] dest1 = new double[N];for (int k = 0; k < N; k++){dest1[k] = dest[k].Modulus();}return dest1;}private void button1_Click(object sender, EventArgs e){double[] array1 = new double[100];if (wave.Text.Equals("正弦波")){PointsClear();for (int i = 0; i < 100; i++){double pointValue = Math.Sin(i * Math.PI / 18.0);array1[i] = pointValue;chart1.Series[0].Points.AddXY(i, pointValue);chart1.Series[0].BorderWidth = 5;chart1.Series[0].Color = Color.Red;chart1.ChartAreas[0].AxisX.Title = "x";chart1.ChartAreas[0].AxisY.Title = "y = f(x)";}double[] array2 = dft(array1);for (int i = 0; i < array2.Length; i++){chart2.Series[0].Points.AddXY(i, array2[i]);}}else if (wave.Text.Equals("方波")){PointsClear();double T = 10;//周期for (int i = 0; i < 100; i++){double pointValue = i % T <= T / 2 ? 5 : -5;array1[i] = pointValue;chart1.Series[0].Points.AddXY(i, pointValue);chart1.Series[0].BorderWidth = 5;chart1.Series[0].Color = Color.Green;chart1.ChartAreas[0].AxisX.Title = "x";chart1.ChartAreas[0].AxisY.Title = "y = f(x)";}double[] array2 = dft(array1);for (int i = 0; i < array2.Length; i++){chart2.Series[0].Points.AddXY(i, array2[i]);}}else if (wave.Text.Equals("三角波")){PointsClear();double T = 10;double k = 0.8 / T;int count = 0;double y;for (int i = 1; i <= 100; i++){y = (i % T <= T / 2) ? (k * i - 0.8 * count) : (0.8 * count - k * i);if ((i + T / 2) % T == 0.0) count++;array1[i - 1] = y;chart1.Series[0].Points.AddXY(i, y);chart1.Series[0].BorderWidth = 5;chart1.Series[0].Color = Color.Yellow;chart1.ChartAreas[0].AxisX.Title = "x";chart1.ChartAreas[0].AxisY.Title = "y = f(x)";}double[] array2 = dft(array1);for (int i = 0; i < array2.Length; i++){chart2.Series[0].Points.AddXY(i, array2[i]);}}}//复数public class Complex{public double Re;public double Im;public Complex(){Re = 0;Im = 0;}public Complex(double re){Re = re;Im = 0;}public Complex(double re, double im){Re = re;Im = im;}public double Modulus(){return Math.Sqrt(Re * Re + Im * Im);}//操作符重载public static Complex operator +(Complex c1, Complex c2){return new Complex(c1.Re + c2.Re, c1.Im + c2.Im);}public static Complex operator +(double d, Complex c){return new Complex(d + c.Re, c.Im);}public static Complex operator *(Complex c1, Complex c2){return new Complex(c1.Re * c2.Re - c1.Im * c2.Im, c1.Re * c2.Im + c2.Re * c1.Im);}public static Complex operator *(Complex c, double d){return new Complex(c.Re * d, c.Im * d);}public static Complex operator *(double d, Complex c){return new Complex(c.Re * d, c.Im * d);}}}
}

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