📄 form5.cs
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using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
namespace WindowsApplication1
{
/// <summary>
/// Form5 的摘要说明。
/// </summary>
public class Form5 : System.Windows.Forms.Form
{
private System.Windows.Forms.Label label1;
private System.Windows.Forms.GroupBox groupBox1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Label label3;
private System.Windows.Forms.Label label4;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.TextBox textBox2;
private System.Windows.Forms.TextBox textBox3;
private System.Windows.Forms.Label label5;
private System.Windows.Forms.Label label6;
private System.Windows.Forms.TextBox textBox4;
private System.Windows.Forms.TextBox textBox5;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.Button button3;
private System.Windows.Forms.Label label7;
private System.Windows.Forms.StatusBar statusBar1;
private System.Windows.Forms.StatusBar statusBar2;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;
public Form5()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();
//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(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 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Form5));
this.label1 = new System.Windows.Forms.Label();
this.groupBox1 = new System.Windows.Forms.GroupBox();
this.textBox5 = new System.Windows.Forms.TextBox();
this.textBox4 = new System.Windows.Forms.TextBox();
this.label6 = new System.Windows.Forms.Label();
this.label5 = new System.Windows.Forms.Label();
this.textBox3 = new System.Windows.Forms.TextBox();
this.textBox2 = new System.Windows.Forms.TextBox();
this.textBox1 = new System.Windows.Forms.TextBox();
this.label4 = new System.Windows.Forms.Label();
this.label3 = new System.Windows.Forms.Label();
this.label2 = new System.Windows.Forms.Label();
this.label7 = new System.Windows.Forms.Label();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.button3 = new System.Windows.Forms.Button();
this.statusBar1 = new System.Windows.Forms.StatusBar();
this.statusBar2 = new System.Windows.Forms.StatusBar();
this.groupBox1.SuspendLayout();
this.SuspendLayout();
//
// label1
//
this.label1.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(255)), ((System.Byte)(192)), ((System.Byte)(255)));
this.label1.Font = new System.Drawing.Font("宋体", 18F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
this.label1.Location = new System.Drawing.Point(168, 16);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(168, 40);
this.label1.TabIndex = 0;
this.label1.Text = "ax*x+bx+c=o";
//
// groupBox1
//
this.groupBox1.BackgroundImage = ((System.Drawing.Image)(resources.GetObject("groupBox1.BackgroundImage")));
this.groupBox1.Controls.Add(this.textBox5);
this.groupBox1.Controls.Add(this.textBox4);
this.groupBox1.Controls.Add(this.label6);
this.groupBox1.Controls.Add(this.label5);
this.groupBox1.Controls.Add(this.textBox3);
this.groupBox1.Controls.Add(this.textBox2);
this.groupBox1.Controls.Add(this.textBox1);
this.groupBox1.Controls.Add(this.label4);
this.groupBox1.Controls.Add(this.label3);
this.groupBox1.Controls.Add(this.label2);
this.groupBox1.Controls.Add(this.label7);
this.groupBox1.Location = new System.Drawing.Point(48, 80);
this.groupBox1.Name = "groupBox1";
this.groupBox1.Size = new System.Drawing.Size(384, 208);
this.groupBox1.TabIndex = 1;
this.groupBox1.TabStop = false;
this.groupBox1.Text = "已知a b c 求x的值";
//
// textBox5
//
this.textBox5.Location = new System.Drawing.Point(272, 120);
this.textBox5.Name = "textBox5";
this.textBox5.Size = new System.Drawing.Size(96, 21);
this.textBox5.TabIndex = 9;
this.textBox5.Text = "";
//
// textBox4
//
this.textBox4.Location = new System.Drawing.Point(96, 120);
this.textBox4.Name = "textBox4";
this.textBox4.Size = new System.Drawing.Size(88, 21);
this.textBox4.TabIndex = 8;
this.textBox4.Text = "";
//
// label6
//
this.label6.BackColor = System.Drawing.Color.Aqua;
this.label6.Font = new System.Drawing.Font("宋体", 18F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
this.label6.Location = new System.Drawing.Point(216, 120);
this.label6.Name = "label6";
this.label6.Size = new System.Drawing.Size(56, 32);
this.label6.TabIndex = 7;
this.label6.Text = "x2=";
//
// label5
//
this.label5.BackColor = System.Drawing.Color.Aqua;
this.label5.Font = new System.Drawing.Font("宋体", 18F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
this.label5.Location = new System.Drawing.Point(40, 120);
this.label5.Name = "label5";
this.label5.Size = new System.Drawing.Size(56, 32);
this.label5.TabIndex = 6;
this.label5.Text = "x1=";
//
// textBox3
//
this.textBox3.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(224)), ((System.Byte)(224)), ((System.Byte)(224)));
this.textBox3.Location = new System.Drawing.Point(312, 40);
this.textBox3.Name = "textBox3";
this.textBox3.Size = new System.Drawing.Size(48, 21);
this.textBox3.TabIndex = 5;
this.textBox3.Text = "";
//
// textBox2
//
this.textBox2.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(224)), ((System.Byte)(224)), ((System.Byte)(224)));
this.textBox2.Location = new System.Drawing.Point(184, 40);
this.textBox2.Name = "textBox2";
this.textBox2.Size = new System.Drawing.Size(48, 21);
this.textBox2.TabIndex = 4;
this.textBox2.Text = "";
//
// textBox1
//
this.textBox1.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(224)), ((System.Byte)(224)), ((System.Byte)(224)));
this.textBox1.Location = new System.Drawing.Point(64, 40);
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(48, 21);
this.textBox1.TabIndex = 3;
this.textBox1.Text = "";
//
// label4
//
this.label4.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(128)), ((System.Byte)(255)), ((System.Byte)(255)));
this.label4.Font = new System.Drawing.Font("宋体", 14.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
this.label4.Location = new System.Drawing.Point(264, 40);
this.label4.Name = "label4";
this.label4.Size = new System.Drawing.Size(40, 24);
this.label4.TabIndex = 2;
this.label4.Text = "c=";
//
// label3
//
this.label3.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(128)), ((System.Byte)(255)), ((System.Byte)(255)));
this.label3.Font = new System.Drawing.Font("宋体", 14.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
this.label3.Location = new System.Drawing.Point(152, 40);
this.label3.Name = "label3";
this.label3.Size = new System.Drawing.Size(32, 24);
this.label3.TabIndex = 1;
this.label3.Text = "b=";
//
// label2
//
this.label2.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(128)), ((System.Byte)(255)), ((System.Byte)(255)));
this.label2.Font = new System.Drawing.Font("宋体", 14.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
this.label2.Location = new System.Drawing.Point(32, 40);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(32, 24);
this.label2.TabIndex = 0;
this.label2.Text = "a=";
//
// label7
//
this.label7.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(255)), ((System.Byte)(255)), ((System.Byte)(192)));
this.label7.Location = new System.Drawing.Point(56, 160);
this.label7.Name = "label7";
this.label7.Size = new System.Drawing.Size(264, 32);
this.label7.TabIndex = 10;
//
// button1
//
this.button1.BackColor = System.Drawing.SystemColors.ControlLightLight;
this.button1.Location = new System.Drawing.Point(48, 312);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(80, 32);
this.button1.TabIndex = 2;
this.button1.Text = "退出";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.BackColor = System.Drawing.SystemColors.ControlLightLight;
this.button2.Location = new System.Drawing.Point(208, 312);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(80, 32);
this.button2.TabIndex = 3;
this.button2.Text = "清除";
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// button3
//
this.button3.BackColor = System.Drawing.SystemColors.ControlLightLight;
this.button3.Location = new System.Drawing.Point(352, 312);
this.button3.Name = "button3";
this.button3.Size = new System.Drawing.Size(72, 32);
this.button3.TabIndex = 4;
this.button3.Text = "计算";
this.button3.Click += new System.EventHandler(this.button3_Click);
//
// statusBar1
//
this.statusBar1.Location = new System.Drawing.Point(0, 370);
this.statusBar1.Name = "statusBar1";
this.statusBar1.Size = new System.Drawing.Size(472, 32);
this.statusBar1.TabIndex = 5;
this.statusBar1.Text = "x1=[-b+√(b*b-4*a*c)]/(2*a) ";
//
// statusBar2
//
this.statusBar2.Location = new System.Drawing.Point(0, 354);
this.statusBar2.Name = "statusBar2";
this.statusBar2.Size = new System.Drawing.Size(472, 16);
this.statusBar2.TabIndex = 6;
this.statusBar2.Text = "x2=[-b-√(b*b-4*a*c)]/(2*a)";
//
// Form5
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.BackgroundImage = ((System.Drawing.Image)(resources.GetObject("$this.BackgroundImage")));
this.ClientSize = new System.Drawing.Size(472, 402);
this.Controls.Add(this.statusBar2);
this.Controls.Add(this.statusBar1);
this.Controls.Add(this.button3);
this.Controls.Add(this.button2);
this.Controls.Add(this.button1);
this.Controls.Add(this.groupBox1);
this.Controls.Add(this.label1);
this.Name = "Form5";
this.Text = "计算一元二次方程";
this.groupBox1.ResumeLayout(false);
this.ResumeLayout(false);
}
#endregion
private void button1_Click(object sender, System.EventArgs e)
{
this.Close();
}
private void button2_Click(object sender, System.EventArgs e)
{
textBox1.Text="";
textBox2.Text="";
textBox3.Text="";
textBox4.Text="";
textBox5.Text="";
label7.Text="";
}
private void button3_Click(object sender, System.EventArgs e)
{
double a,b,c,x1,x2; Console.Write("请输入a的值:"); Console.Write("请输入b的值:"); Console.Write("请输入c的值:"); a=double.Parse(textBox1.Text); b=double.Parse(textBox2.Text); c=double.Parse(textBox3.Text); if(a==0) { label7.Text="a不等于0"; } else { if((b*b-4*a*c)>0) { x1=(-b+System.Math.Sqrt(b*b-4*a*c))/(2*a); x2=(-b-System.Math.Sqrt(b*b-4*a*c))/(2*a); textBox4.Text=x1.ToString(); textBox5.Text=x2.ToString(); } if((b*b-4*a*c)==0) { x1=(-b+System.Math.Sqrt(b*b-4*a*c))/(2*a); x2=(-b-System.Math.Sqrt(b*b-4*a*c))/(2*a); textBox4.Text=x1.ToString(); textBox5.Text=x2.ToString(); } if((b*b-4*a*c)<0) { label7.Text="该函数无解"; }
}
}
}
}
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