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1、超详细因为计算器设计的控件太多,不便使用控制台应用程序完成,所以这里使用Windows窗体应用程序,并命名为 Calc,如下图所示:向窗体中拖入需要的控件,如下图所示:结果显示区(作者博客左边的文本框)是 TextBox控件,并修改其 name为txtShow ,按键 09 为 Button 控件,并将其 name 分另1J修改为 btn_0、btn_1、btn_2、btn_3、btn_4、btn_5、 btn_6、btn_7、btn_8、btn_9;按键【负数】的 name值修改为 btn_sign ,按键【.】的name 修改为 btn_dot,按键【+ - * / 的 name 值分另M
2、修改为 btn_add、btn_sub、btn_mul、btn_div , 按键【二】的name值修改为btn_equ,按键【倒数】的name值修改为btn_rev,按键【平方】 的name值修改为btn_sqr,按键【开方】的 name值修改为btn_sqrt。右边的计算器图片空 间是PictureBox ,作者博客控件是LinkLabel ,可以不添加,以上所有控件均可按照需求添加,只保留自 己需要的按钮控件和textbox控件即可。三、 代码部分(含解释),采用switch多分支语句编写using System;using System.Drawing;using System.Coll
3、ections;using System.ComponentModel;usingusing System.Data; namespace Calc / summary/温柔一刀C桶易计算器的实现/ public class CalcFormForm private Button btn_0; private Button btn_1; private Button btn_2; private Button btn_3; private Button btn_4;private Button btn_5;private Button btn_6;private Button btn_7;pr
4、ivate Button btn_8;private Button btn_9;private Button btn_add;private Button btn_sub;private Button btn_mul;private Button btn_div;private Button btn_sqrt;private Button btn_sign;private Button btn_equ;private Button btn_dot;private Button btn_rev;private TextBox txtShow;private Button btn_sqr;priv
5、ate PictureBox pictureBox1;private LinkLabel linkLabel1;/ / 必需的设计器变量。/ private System.ComponentModel. Container components = null ; public CalcForm()/ 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/ / 清理所有正在使用的资源。/ protected override void Dispose( bool disposin
6、g )if ( disposing )if (components != null )components.Dispose();base.Dispose( disposing );#region Windows Form Designer generated code/ / 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。/ private void InitializeComponent() System.ComponentModel. ComponentResourceManager resources = new System.ComponentModel. Compon
7、entResourceManager( typeof ( CalcForm);this .btn_9 = newButton ();this .txtShow = newTextBox ();this .btn_8 = newButton ();this .btn_7 = newButton ();this .btn_div = newButton ();this .btn_sqrt = newButton ();this .btn_4 =newButton ();this .btn_5 =newButton ();this .btn_6 =newButton ();this .btn_1 =
8、newButton ();this .btn_2 =newButton ();this .btn_3 =newButton ();this .btn_0 =newButton (); TOC o 1-5 h z this.btn_mul =newButton();this.btn_sub =newButton();this .btn_sign = newButton ();this.btn_equ =newButton();this.btn_add =newButton();this.btn_dot =newButton();this.btn_sqr =newButton();this.btn
9、_rev =newButton();this .pictureBox1 = newPictureBox ();this .linkLabel1 = newLinkLabel ();(System.ComponentModel.ISupportInitialize )( this .pictureBox1).BeginInit();this .SuspendLayout(); / / btn_9 /this .btn_9.BackColor = System.Drawing. SystemColors .ActiveBorder;this ImageLayout .Center;this Sys
10、temColors .ButtonFace;this Color .WhiteSmoke;this .btn_9.Font = new System.Drawing. Font ( 黑体 , 10.5F,System.Drawing. FontStyle .Bold, System.Drawing. GraphicsUnit .Point, ( byte )(134);this .btn_9.ForeColor = System.Drawing. Color .Black;this .btn_9.Location = new System.Drawing. Point (126, 37);th
11、is .btn_9.Name = btn_9 ;this .btn_9.Size = new System.Drawing. Size (59, 31);this .btn_9.TabIndex = 0;this .btn_9.Tag =9 ;this .btn_9.Text =9 ;this .btn_9.UseVisualStyleBackColor = false ;this .btn_9.Click += new System. EventHandler ( this .btn_0_Click);/ txtShow/this .txtShow.Location = newSystem.
12、Drawing. Point (4, 6);this .txtShow.Name = txtShow ;this .txtShow.ReadOnly = true ;this .txtShow.Size = new System.Drawing. Size (242, 21);this .txtShow.TabIndex = 1;this HorizontalAlignment .Right;/ btn_8/this .btn_8.BackColor = System.Drawing. SystemColors .ActiveBorder;this ImageLayout .Center;th
13、is .btn_8.FlatAppearance.MouseDownBackColor = System.Drawing. SystemColors .ButtonFace;this Color .WhiteSmoke;this .btn_8.Font = new System.Drawing. Font ( 黑体 , 10.5F, System.Drawing. FontStyle .Bold, System.Drawing. GraphicsUnit .Point, ( byte )(134);this .btn_8.ForeColor = System.Drawing. Color .B
14、lack;this .btn_8.Location = new System.Drawing. Point (66, 37);this .btn_8.Name = btn_8 ;this .btn_8.Size = new System.Drawing. Size (59, 31);this .btn_8.TabIndex = 2;this .btn_8.Tag =8 ;this .btn_8.Text =8 ;this .btn_8.UseVisualStyleBackColor = false ;this .btn_8.Click += new System. EventHandler (
15、 this .btn_0_Click);/ btn_7/this .btn_7.BackColor = System.Drawing. SystemColors .ActiveBorder;this ImageLayout .Center;this Color .WhiteSmoke;this .btn_7.Font = new System.Drawing. Font (黑体 , 10.5F, System.Drawing. FontStyle .Bold, System.Drawing. GraphicsUnit .Point, ( byte )(134);this .btn_7.Fore
16、Color = System.Drawing. Color .Black;this .btn_7.Location = new System.Drawing. Point (4, 37);this .btn_7.Name = btn_7 ;this .btn_7.Size = new System.Drawing. Size (59, 31);this .btn_7.TabIndex = 3;this .btn_7.Tag =7 ;this .btn_7.Text =7 ;this .btn_7.UseVisualStyleBackColor = false ;this .btn_7.Clic
17、k +=new System. EventHandler ( this .btn_0_Click);/ / btn_div /this .btn_div.BackColor = System.Drawing. SystemColors .ActiveBorder;this ImageLayout .Center;this SystemColors .ButtonFace;this Color .WhiteSmoke;this .btn_div.Font = new System.Drawing. Font ( 黑体 , 10.5F, System.Drawing. FontStyle .Bol
18、d, System.Drawing. GraphicsUnit .Point, ( byte )(134);this .btn_div.ForeColor = System.Drawing. Color .Red;this .btn_div.Location = newSystem.Drawing. Point (187, 37);this .btn_div.Name = btn_div ;this .btn_div.Size = new System.Drawing. Size (59, 31);this .btn_div.TabIndex = 4;this .btn_div.Text =/
19、 ;this .btn_div.UseVisualStyleBackColor = false ;this .btn_div.Click += new System. EventHandler ( this .btn_div_Click);/ btn_sqrt/this .btn_sqrt.BackColor = System.Drawing. SystemColors .ActiveBorder;this ImageLayout .Center;this SystemColors .ButtonFace;this Color .WhiteSmoke;this .btn_sqrt.Font =
20、 newSystem.Drawing. Font (黑体 , 10.5F, System.Drawing. FontStyle .Bold, System.Drawing. GraphicsUnit .Point, ( byte )(134);this .btn_sqrt.ForeColor = System.Drawing. Color .Black;this .btn_sqrt.Location = newSystem.Drawing. Point (253, 37);this .btn_sqrt.Name = btn_sqrt ;this .btn_sqrt.Size = newSyst
21、em.Drawing. Size (59, 31);this .btn_sqrt.TabIndex = 5;this .btn_sqrt.Text =开方 ;this .btn_sqrt.UseVisualStyleBackColor = false ;this .btn_sqrt.Click += newSystem. EventHandler ( this .btn_sqrt_Click);/ btn_4/this .btn_4.BackColor = System.Drawing. SystemColors .ActiveBorder;this ImageLayout .Center;t
22、his SystemColors .ButtonFace;this Color .WhiteSmoke;this .btn_4.Font = new System.Drawing. Font ( 黑体 , 10.5F, System.Drawing. FontStyle .Bold, System.Drawing. GraphicsUnit .Point, ( byte )(134);this .btn_4.ForeColor = System.Drawing. Color .Black;this .btn_4.Location = new System.Drawing. Point (4,
23、72);this .btn_4.Name = btn_4 ;this .btn_4.Size = new System.Drawing. Size (59, 31);this .btn_4.TabIndex = 6;this .btn_4.Tag =4 ;this .btn_4.Text =4 ;this .btn_4.UseVisualStyleBackColor = false ;this .btn_4.Click += new System. EventHandler ( this .btn_0_Click);/ btn_5/this .btn_5.BackColor = System.
24、Drawing. SystemColors .ActiveBorder;this ImageLayout .Center;this SystemColors .ButtonFace;this Color .WhiteSmoke;this .btn_5.Font = new System.Drawing. Font ( 黑体 , 10.5F, System.Drawing. FontStyle .Bold, System.Drawing. GraphicsUnit .Point, ( byte )(134);this .btn_5.ForeColor = System.Drawing. Colo
25、r .Black;this .btn_5.Location = new System.Drawing. Point (66, 72);this .btn_5.Name = btn_5 ;this .btn_5.Size = new System.Drawing. Size (59, 31);this .btn_5.TabIndex = 7;this .btn_5.Tag =5 ;this .btn_5.Text =5 ;this .btn_5.UseVisualStyleBackColor = false ;this .btn_5.Click += new System. EventHandl
26、er ( this .btn_0_Click);/ btn_6/this .btn_6.BackColor = System.Drawing. SystemColors .ActiveBorder;this ImageLayout .Center;this Color .WhiteSmoke;this .btn_6.Font = new System.Drawing. Font (黑体 , 10.5F, System.Drawing. FontStyle .Bold, System.Drawing. GraphicsUnit .Point, ( byte )(134);this .btn_6.
27、ForeColor = System.Drawing. Color .Black;this .btn_6.Location = new System.Drawing. Point (126, 72);this .btn_6.Name = btn_6 ;this .btn_6.Size = new System.Drawing. Size (59, 31);this .btn_6.TabIndex = 8;this .btn_6.Tag =6 ;this .btn_6.Text =6 ;this .btn_6.UseVisualStyleBackColor = false ;this .btn_
28、6.Click += new System. EventHandler ( this .btn_0_Click);/ btn_1/this .btn_1.BackColor = System.Drawing. SystemColors .ActiveBorder;this ImageLayout .Center;this SystemColors .ButtonFace;this Color .WhiteSmoke;this .btn_1.Font = new System.Drawing. Font (黑体 , 10.5F, System.Drawing. FontStyle .Bold,
29、System.Drawing. GraphicsUnit .Point, ( byte )(134);this .btn_1.ForeColor = System.Drawing. Color .Black;this .btn_1.Location = new System.Drawing. Point (4, 108);this .btn_1.Name = btn_1 ;this .btn_1.Size = new System.Drawing. Size (59, 31);this .btn_1.TabIndex = 9;this .btn_1.Tag =1 ;this .btn_1.Te
30、xt =1 ;this .btn_1.UseVisualStyleBackColor = false ;this .btn_1.Click += new System. EventHandler ( this .btn_0_Click);/ btn_2/this .btn_2.BackColor = System.Drawing. SystemColors .ActiveBorder;this ImageLayout .Center;this SystemColors .ButtonFace;this Color .WhiteSmoke;this .btn_2.Font = new Syste
31、m.Drawing. Font (黑体 , 10.5F, System.Drawing. FontStyle .Bold, System.Drawing. GraphicsUnit .Point, ( byte )(134);this .btn_2.ForeColor = System.Drawing. Color .Black;this .btn_2.Location = new System.Drawing. Point (66, 108);this .btn_2.Name = btn_2 ;this .btn_2.Size = new System.Drawing. Size (59,
32、31);this .btn_2.TabIndex = 10;this .btn_2.Tag =2 ;this .btn_2.Text =2 ;this .btn_2.UseVisualStyleBackColor = false ;this .btn_2.Click += new System. EventHandler ( this .btn_0_Click);/ btn_3/this .btn_3.BackColor = System.Drawing. SystemColors .ActiveBorder;this ImageLayout .Center;this SystemColors
33、 .ButtonFace;this Color .WhiteSmoke;this .btn_3.Font = new System.Drawing. Font ( 黑体 , 10.5F, System.Drawing. FontStyle .Bold, System.Drawing. GraphicsUnit .Point, ( byte )(134);this .btn_3.ForeColor = System.Drawing. Color .Black;this .btn_3.Location = new System.Drawing. Point (126, 108);this .btn
34、_3.Name = btn_3 ;this .btn_3.Size = new System.Drawing. Size (59, 31);this .btn_3.TabIndex = 11;this .btn_3.Tag =3 ;this .btn_3.Text =3 ;this .btn_3.UseVisualStyleBackColor = false ;this .btn_3.Click += new System. EventHandler ( this .btn_0_Click);/ btn_0/this .btn_0.BackColor = System.Drawing. Sys
35、temColors .ActiveBorder;this ImageLayout .Center;this SystemColors .ButtonFace;this Color .WhiteSmoke;this .btn_0.Font = new System.Drawing. Font ( 黑体 , 10.5F, System.Drawing. FontStyle .Bold, System.Drawing. GraphicsUnit .Point, ( byte )(134);this .btn_0.ForeColor = System.Drawing. Color .Black;thi
36、s .btn_0.Location = new System.Drawing. Point (4, 143);this .btn_0.Name = btn_0 ;this .btn_0.Size = new System.Drawing. Size (59, 31);this .btn_0.TabIndex = 12;this .btn_0.Tag =0 ;this .btn_0.Text =0 ;this .btn_0.UseVisualStyleBackColor = false ;this .btn_0.Click += new System. EventHandler ( this .
37、btn_0_Click);/ btn_mul/ this .btn_mul.BackColor = System.Drawing. SystemColors .ActiveBorder; this ImageLayout .Center;this SystemColors .ButtonFace;this Color .WhiteSmoke;this .btn_mul.Font = new System.Drawing. Font ( 黑体 , 10.5F, System.Drawing. FontStyle .Bold, System.Drawing. GraphicsUnit .Point
38、, ( byte )(134);this .btn_mul.ForeColor = System.Drawing. Color .Red;this .btn_mul.Location = newSystem.Drawing. Point (187, 72);this .btn_mul.Name = btn_mul ;this .btn_mul.Size = new System.Drawing. Size (59, 31);this .btn_mul.TabIndex = 13;this .btn_mul.Text =* ;this .btn_mul.UseVisualStyleBackCol
39、or = false ;this .btn_mul.Click += new System. EventHandler ( this .btn_mul_Click);/ btn_sub/this .btn_sub.BackColor = System.Drawing. SystemColors .ActiveBorder;this ImageLayout .Center;this SystemColors .ButtonFace;this Color .WhiteSmoke;this .btn_sub.Font = new System.Drawing. Font ( 黑体 , 10.5F,
40、System.Drawing. FontStyle .Bold, System.Drawing. GraphicsUnit .Point, ( byte )(134);this .btn_sub.ForeColor = System.Drawing. Color .Red;this .btn_sub.Location = newSystem.Drawing. Point (187, 108);this .btn_sub.Name = btn_sub ;this .btn_sub.Size = new System.Drawing. Size (59, 31);this .btn_sub.Tab
41、Index = 14;this .btn_sub.Text =- ;this .btn_sub.UseVisualStyleBackColor = false ;this .btn_sub.Click += new System. EventHandler ( this .btn_sub_Click);/ btn_sign /this .btn_sign.BackColor = System.Drawing. SystemColors .ActiveBorder;this ImageLayout .Center;this SystemColors .ButtonFace;this Color
42、.WhiteSmoke;this .btn_sign.Font = newSystem.Drawing. Font ( 黑体 , 10.5F, System.Drawing. FontStyle .Bold, System.Drawing. GraphicsUnit .Point, ( byte )(134);this .btn_sign.ForeColor = System.Drawing. Color .Red;this .btn_sign.Location = newSystem.Drawing. Point (66, 143);this .btn_sign.Name = btn_sig
43、n ;this .btn_sign.Size = newSystem.Drawing. Size (59, 31);this .btn_sign.TabIndex = 15;this .btn_sign.Text =负数 ;this .btn_sign.UseVisualStyleBackColor = false ;this .btn_sign.Click += newSystem. EventHandler ( this .btn_sign_Click);/ btn_equ/this .btn_equ.BackColor = System.Drawing. SystemColors .Ac
44、tiveBorder;this ImageLayout .Center;this SystemColors .ButtonFace;this Color .WhiteSmoke;this .btn_equ.Font = new System.Drawing. Font ( 黑体 , 10.5F, System.Drawing. FontStyle .Bold, System.Drawing. GraphicsUnit .Point, ( byte )(134);this .btn_equ.ForeColor = System.Drawing. Color .Red;this .btn_equ.
45、Location = newSystem.Drawing. Point (253, 143);this .btn_equ.Name = btn_equ ;this .btn_equ.Size = new System.Drawing. Size (59, 31);this .btn_equ.TabIndex = 16;this .btn_equ.Text = ;this .btn_equ.UseVisualStyleBackColor = false ;this .btn_equ.Click += new System. EventHandler ( this .btn_equ_Click);
46、/ btn_add/this .btn_add.BackColor = System.Drawing. SystemColors .ActiveBorder;this ImageLayout .Center;this SystemColors .ButtonFace;this Color .WhiteSmoke;this .btn_add.Font = new System.Drawing. Font ( 黑体 , 10.5F, System.Drawing. FontStyle .Bold, System.Drawing. GraphicsUnit .Point, ( byte )(134)
47、;this .btn_add.ForeColor = System.Drawing. Color .Red;this .btn_add.Location = newSystem.Drawing. Point (187, 143);this .btn_add.Name = btn_add ;this .btn_add.Size = new System.Drawing. Size (59, 31);this .btn_add.TabIndex = 17;this .btn_add.Text =+ ;this .btn_add.UseVisualStyleBackColor = false ;th
48、is .btn_add.Click += new System. EventHandler ( this .btn_add_Click);/ btn_dot/this .btn_dot.BackColor = System.Drawing. SystemColors .ActiveBorder;this ImageLayout .Center;this SystemColors .ButtonFace;this Color .WhiteSmoke;this .btn_dot.Font = new System.Drawing. Font ( 黑体 , 10.5F, System.Drawing
49、. FontStyle .Bold, System.Drawing. GraphicsUnit .Point, ( byte )(134);this .btn_dot.ForeColor = System.Drawing. Color .Black;this .btn_dot.Location = newSystem.Drawing. Point (126, 143);this .btn_dot.Name = btn_dot ;this .btn_dot.Size = new System.Drawing. Size (59, 31);this .btn_dot.TabIndex = 18;t
50、his .btn_dot.Text =. ;this .btn_dot.UseVisualStyleBackColor = false ;this .btn_dot.Click += new System. EventHandler ( this .btn_dot_Click);/ btn_sqr/this .btn_sqr.BackColor = System.Drawing. SystemColors .ActiveBorder;this ImageLayout .Center;this SystemColors .ButtonFace;this Color .WhiteSmoke;thi
51、s .btn_sqr.Font = new System.Drawing. Font ( 黑体 , 10.5F, System.Drawing. FontStyle .Bold, System.Drawing. GraphicsUnit .Point, ( byte )(134);this .btn_sqr.ForeColor = System.Drawing. Color .Black;this .btn_sqr.Location = newSystem.Drawing. Point (253, 72);this .btn_sqr.Name = btn_sqr ;this .btn_sqr.
52、Size = new System.Drawing. Size (59, 31);this .btn_sqr.TabIndex = 19;this .btn_sqr.Text =平方;this .btn_sqr.UseVisualStyleBackColor = false ;this .btn_sqr.Click += new System. EventHandler ( this .btn_sqr_Click);/ btn_rev/this .btn_rev.BackColor = System.Drawing. SystemColors .ActiveBorder;this ImageL
53、ayout .Center;this SystemColors .ButtonFace;this Color .WhiteSmoke;this .btn_rev.Font = new System.Drawing. Font ( 黑体 , 10.5F, System.Drawing. FontStyle .Bold, System.Drawing. GraphicsUnit .Point, ( byte )(134);this .btn_rev.ForeColor = System.Drawing. Color .Red;this .btn_rev.Location = newSystem.D
54、rawing. Point (253, 108);this .btn_rev.Name = btn_rev ;this .btn_rev.Size = new System.Drawing. Size (59, 31);this .btn_rev.TabIndex = 20;this .btn_rev.Text =倒数 ;this .btn_rev.UseVisualStyleBackColor = false ;this .btn_rev.Click += new System. EventHandler ( this .btn_rev_Click);/ pictureBox1/this.p
55、ictureBox1.Image =(System.Drawing.Image)(resources.GetObject( pictureBox1.Image );this.pictureBox1.Location =newSystem.Drawing. Point (319, 6);this.pictureBox1.Name = pictureBox1 ;this.pictureBox1.Size =newSystem.Drawing. Size (100, 168);this.pictureBox1.TabIndex = 21;this.pictureBox1.TabStop = fals
56、e ;/ linkLabel1/this.linkLabel1.AutoSize =true ;this.linkLabel1.Location =new System.Drawing. Point (253, 13);this.linkLabel1.Name = linkLabel1 ;this.linkLabel1.Size =newSystem.Drawing. Size (53, 12);this.linkLabel1.TabIndex = 22;this.linkLabel1.TabStop =true ;this.linkLabel1.Text =作者博客;this.linkLab
57、el1.LinkClicked +=newLinkLabelLinkClickedEventHandler( this .linkLabel1_LinkClicked);/ CalcForm/this.AutoScaleBaseSize = newSystem.Drawing. Size (6, 14);this.ClientSize = new System.Drawing. Size (427, 181);this.Controls.Add( this .linkLabel1);this.Controls.Add( this .pictureBox1);this.Controls.Add(
58、 this .btn_rev);this.Controls.Add( this .btn_sqr);this.Controls.Add( this .btn_dot);this.Controls.Add( this .btn_add);this.Controls.Add( this .btn_equ);this.Controls.Add( this .btn_sign);this.Controls.Add( this .btn_sub);this.Controls.Add( this .btn_mul);this.Controls.Add( this .btn_0);this.Controls
59、.Add( this .btn_3);this.Controls.Add( this .btn_2);this.Controls.Add( this .btn_1);this.Controls.Add( this .btn_6);this.Controls.Add( this .btn_5);this.Controls.Add( this .btn_4);this.Controls.Add(this.btn_sqrt);this.Controls.Add(this.btn_div);this.Controls.Add(this.btn_7);this.Controls.Add(this.btn
60、_8);this.Controls.Add(this.txtShow);this.Controls.Add(this.btn_9);this FormBorderStyle .FixedDialog;this .MaximizeBox = false ;this .Name = CalcForm ;this FormStartPosition .CenterScreen;this .Text = C#编写计算器;this .Load += new System. EventHandler ( this .CalcForm_Load);(System.ComponentModel.ISuppor
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