模仿windows自带计算器

最新推荐文章于 2025-05-07 14:32:38 发布
原创 最新推荐文章于 2025-05-07 14:32:38 发布 · 328 阅读 · 0 ·
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文章标签：

#windows #单片机 #stm32 #winform

目录

一 原型

二 模仿效果

三 后台代码

一 原型

二 模仿效果

三 后台代码

namespace 模仿windows自带计算器
{
    public partial class Prefix : Form
    {
        public Prefix()
        {
            InitializeComponent();
        }

        string OperandsA = ""; //操作数A
        string Operator = ""; //操作符

        private void PerCent_Click(object sender, EventArgs e)
        {
            Operator = PerCent.Text;
            OperandsA += Operator;
            Display.Text = OperandsA;
        }

        private void CE_Click(object sender, EventArgs e)
        {
            Operator = "";
            Display.Text = "";
            OperandsA = "";
        }

        private void C_Click(object sender, EventArgs e)
        {
            int index = OperandsA.Length;
            if (index > 0)
            {
                OperandsA = OperandsA.Remove(index - 1, 1);
                Display.Text = OperandsA;
            }
        }

        private void Clear_Click(object sender, EventArgs e)
        {
            Operator = "";
            Display.Text = "";
            OperandsA = "";
        }

        private void CentOne_Click(object sender, EventArgs e)
        {

            try
            {
                decimal res = 1 / decimal.Parse(Display.Text);
                Display.Text = res.ToString();
                OperandsA = Display.Text;
            }
            catch (Exception)
            {
                Operator = "";
                Display.Text = "";
                OperandsA = "";
                MessageBox.Show("算式有误，请检查");
            }
        }

        private void Square_Click(object sender, EventArgs e)
        {

            try
            {
                double res = double.Parse(Display.Text) * double.Parse(Display.Text);
                Display.Text = res.ToString();
                OperandsA = Display.Text;
            }
            catch (Exception)
            {
                Operator = "";
                Display.Text = "";
                OperandsA = "";
                MessageBox.Show("算式有误，请检查");
            }
        }

        private void SquareRoot_Click(object sender, EventArgs e)
        {
            try
            {
                double res = Math.Sqrt(double.Parse(Display.Text));
                Display.Text = res.ToString();
                OperandsA = Display.Text;
            }
            catch (Exception)
            {
                Operator = "";
                Display.Text = "";
                OperandsA = "";
                MessageBox.Show("算式有误，请检查");
            }

        }

        //除
        private void Except_Click(object sender, EventArgs e)
        {
            Operator = Except.Text;
            OperandsA += Operator;
            Display.Text = OperandsA;
        }

        private void Ride_Click(object sender, EventArgs e)
        {
            Operator = Ride.Text;
            OperandsA += Operator;
            Display.Text = OperandsA;
        }

        private void Reduce_Click(object sender, EventArgs e)
        {
            Operator = Reduce.Text;
            OperandsA += Operator;
            Display.Text = OperandsA;
        }

        private void Add_Click(object sender, EventArgs e)
        {
            Operator = Add.Text;
            OperandsA += Operator;
            Display.Text = OperandsA;
        }

        private void ETC_Click(object sender, EventArgs e)
        {
            //分割符号，根据符号进行计算
            Display.Text = sum(Display.Text).ToString();
            OperandsA = "";
            Operator = Display.Text;
        }

        int clickCount = 0;
        private void PrefixAddOrReduce_Click(object sender, EventArgs e)
        {
            clickCount++;
            Operator = PrefixAddOrReduce.Text;
            if (clickCount % 2 == 0)
            {
                OperandsA = OperandsA.Replace("+", "").Replace("-", "");
                OperandsA = "+" + OperandsA;
            }
            else
            {
                OperandsA = OperandsA.Replace("+", "").Replace("-", "");
                OperandsA = "-" + OperandsA;
            }

            Display.Text = OperandsA;
        }

        private void Point_Click(object sender, EventArgs e)
        {
            OperandsA += Point.Text;
            Display.Text = OperandsA;
        }


        private void Zero_Click(object sender, EventArgs e)
        {
            OperandsA += Zero.Text;
            Display.Text = OperandsA;
        }

        private void One_Click(object sender, EventArgs e)
        {
            OperandsA += One.Text;
            Display.Text = OperandsA;
        }

        private void Two_Click(object sender, EventArgs e)
        {
            OperandsA += Two.Text;
            Display.Text = OperandsA;
        }

        private void Three_Click(object sender, EventArgs e)
        {
            OperandsA += Three.Text;
            Display.Text = OperandsA;
        }

        private void Four_Click(object sender, EventArgs e)
        {
            OperandsA += Four.Text;
            Display.Text = OperandsA;
        }

        private void Five_Click(object sender, EventArgs e)
        {
            OperandsA += Five.Text;
            Display.Text = OperandsA;
        }

        private void Six_Click(object sender, EventArgs e)
        {
            OperandsA += Six.Text;
            Display.Text = OperandsA;
        }

        private void Seven_Click(object sender, EventArgs e)
        {
            OperandsA += Seven.Text;
            Display.Text = OperandsA;
        }

        private void Eight_Click(object sender, EventArgs e)
        {
            OperandsA += Eight.Text;
            Display.Text = OperandsA;
        }

        private void Nine_Click(object sender, EventArgs e)
        {
            OperandsA += Nine.Text;
            Display.Text = OperandsA;
        }

        private double sum(string str)
        {
            string[] arr = { "0", "0" };
            double sum = 0;
            try
            {
                if (str.Contains("%"))
                {
                    arr = str.Split("%");
                    sum = double.Parse(arr[0]) % double.Parse(arr[1]);
                }
                if (str.Contains("÷"))
                {
                    arr = str.Split("÷");
                    sum = double.Parse(arr[0]) / double.Parse(arr[1]);
                }
                if (str.Contains("×"))
                {
                    arr = str.Split("×");
                    sum = double.Parse(arr[0]) * double.Parse(arr[1]);
                }
                if (str.Contains("-"))
                {
                    arr = str.Split("-");
                    sum = double.Parse(arr[0]) - double.Parse(arr[1]);
                }
                if (str.Contains("+"))
                {
                    arr = str.Split("+");
                    sum = double.Parse(arr[0]) + double.Parse(arr[1]);
                }
            }
            catch (Exception)
            {
                Operator = "";
                Display.Text = "";
                OperandsA = "";
                MessageBox.Show("算式有误，请检查");
            }

            return sum;
        }
    }
}

设计器自动生成代码：

namespace 模仿windows自带计算器
{
    partial class Prefix
    {
        /// <summary>
        ///  Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        ///  Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        ///  Required method for Designer support - do not modify
        ///  the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            Display = new RichTextBox();
            PerCent = new Button();
            Clear = new Button();
            C = new Button();
            CE = new Button();
            Square = new Button();
            SquareRoot = new Button();
            Except = new Button();
            CentOne = new Button();
            Eight = new Button();
            Nine = new Button();
            Ride = new Button();
            Seven = new Button();
            Five = new Button();
            Six = new Button();
            Reduce = new Button();
            Four = new Button();
            Two = new Button();
            Three = new Button();
            Add = new Button();
            One = new Button();
            Zero = new Button();
            Point = new Button();
            ETC = new Button();
            PrefixAddOrReduce = new Button();
            SuspendLayout();
            // 
            // Display
            // 
            Display.Font = new Font("Microsoft YaHei UI", 19.8000011F, FontStyle.Regular, GraphicsUnit.Point, 134);
            Display.Location = new Point(12, 24);
            Display.Name = "Display";
            Display.ReadOnly = true;
            Display.Size = new Size(525, 154);
            Display.TabIndex = 0;
            Display.Text = "";
            // 
            // PerCent
            // 
            PerCent.Location = new Point(12, 196);
            PerCent.Name = "PerCent";
            PerCent.Size = new Size(94, 29);
            PerCent.TabIndex = 1;
            PerCent.Text = "%";
            PerCent.UseVisualStyleBackColor = true;
            PerCent.Click += PerCent_Click;
            // 
            // Clear
            // 
            Clear.Location = new Point(441, 196);
            Clear.Name = "Clear";
            Clear.Size = new Size(94, 29);
            Clear.TabIndex = 2;
            Clear.Text = "清除";
            Clear.UseVisualStyleBackColor = true;
            Clear.Click += Clear_Click;
            // 
            // C
            // 
            C.Location = new Point(298, 196);
            C.Name = "C";
            C.Size = new Size(94, 29);
            C.TabIndex = 3;
            C.Text = "C";
            C.UseVisualStyleBackColor = true;
            C.Click += C_Click;
            // 
            // CE
            // 
            CE.Location = new Point(155, 196);
            CE.Name = "CE";
            CE.Size = new Size(94, 29);
            CE.TabIndex = 4;
            CE.Text = "CE";
            CE.UseVisualStyleBackColor = true;
            CE.Click += CE_Click;
            // 
            // Square
            // 
            Square.Location = new Point(155, 249);
            Square.Name = "Square";
            Square.Size = new Size(94, 29);
            Square.TabIndex = 8;
            Square.Text = "x^2";
            Square.UseVisualStyleBackColor = true;
            Square.Click += Square_Click;
            // 
            // SquareRoot
            // 
            SquareRoot.Location = new Point(298, 249);
            SquareRoot.Name = "SquareRoot";
            SquareRoot.Size = new Size(94, 29);
            SquareRoot.TabIndex = 7;
            SquareRoot.Text = "2√x";
            SquareRoot.UseVisualStyleBackColor = true;
            SquareRoot.Click += SquareRoot_Click;
            // 
            // Except
            // 
            Except.Location = new Point(441, 249);
            Except.Name = "Except";
            Except.Size = new Size(94, 29);
            Except.TabIndex = 6;
            Except.Text = "÷";
            Except.UseVisualStyleBackColor = true;
            Except.Click += Except_Click;
            // 
            // CentOne
            // 
            CentOne.Location = new Point(12, 249);
            CentOne.Name = "CentOne";
            CentOne.Size = new Size(94, 29);
            CentOne.TabIndex = 5;
            CentOne.Text = "1/x";
            CentOne.UseVisualStyleBackColor = true;
            CentOne.Click += CentOne_Click;
            // 
            // Eight
            // 
            Eight.Location = new Point(155, 304);
            Eight.Name = "Eight";
            Eight.Size = new Size(94, 29);
            Eight.TabIndex = 12;
            Eight.Text = "8";
            Eight.UseVisualStyleBackColor = true;
            Eight.Click += Eight_Click;
            // 
            // Nine
            // 
            Nine.Location = new Point(298, 304);
            Nine.Name = "Nine";
            Nine.Size = new Size(94, 29);
            Nine.TabIndex = 11;
            Nine.Text = "9";
            Nine.UseVisualStyleBackColor = true;
            Nine.Click += Nine_Click;
            // 
            // Ride
            // 
            Ride.Location = new Point(441, 304);
            Ride.Name = "Ride";
            Ride.Size = new Size(94, 29);
            Ride.TabIndex = 10;
            Ride.Text = "×";
            Ride.UseVisualStyleBackColor = true;
            Ride.Click += Ride_Click;
            // 
            // Seven
            // 
            Seven.Location = new Point(12, 304);
            Seven.Name = "Seven";
            Seven.Size = new Size(94, 29);
            Seven.TabIndex = 9;
            Seven.Text = "7";
            Seven.UseVisualStyleBackColor = true;
            Seven.Click += Seven_Click;
            // 
            // Five
            // 
            Five.Location = new Point(155, 364);
            Five.Name = "Five";
            Five.Size = new Size(94, 29);
            Five.TabIndex = 16;
            Five.Text = "5";
            Five.UseVisualStyleBackColor = true;
            Five.Click += Five_Click;
            // 
            // Six
            // 
            Six.Location = new Point(298, 364);
            Six.Name = "Six";
            Six.Size = new Size(94, 29);
            Six.TabIndex = 15;
            Six.Text = "6";
            Six.UseVisualStyleBackColor = true;
            Six.Click += Six_Click;
            // 
            // Reduce
            // 
            Reduce.Location = new Point(441, 364);
            Reduce.Name = "Reduce";
            Reduce.Size = new Size(94, 29);
            Reduce.TabIndex = 14;
            Reduce.Text = "-";
            Reduce.UseVisualStyleBackColor = true;
            Reduce.Click += Reduce_Click;
            // 
            // Four
            // 
            Four.Location = new Point(12, 364);
            Four.Name = "Four";
            Four.Size = new Size(94, 29);
            Four.TabIndex = 13;
            Four.Text = "4";
            Four.UseVisualStyleBackColor = true;
            Four.Click += Four_Click;
            // 
            // Two
            // 
            Two.Location = new Point(155, 425);
            Two.Name = "Two";
            Two.Size = new Size(94, 29);
            Two.TabIndex = 20;
            Two.Text = "2";
            Two.UseVisualStyleBackColor = true;
            Two.Click += Two_Click;
            // 
            // Three
            // 
            Three.Location = new Point(298, 425);
            Three.Name = "Three";
            Three.Size = new Size(94, 29);
            Three.TabIndex = 19;
            Three.Text = "3";
            Three.UseVisualStyleBackColor = true;
            Three.Click += Three_Click;
            // 
            // Add
            // 
            Add.Location = new Point(441, 425);
            Add.Name = "Add";
            Add.Size = new Size(94, 29);
            Add.TabIndex = 18;
            Add.Text = "+";
            Add.UseVisualStyleBackColor = true;
            Add.Click += Add_Click;
            // 
            // One
            // 
            One.Location = new Point(12, 425);
            One.Name = "One";
            One.Size = new Size(94, 29);
            One.TabIndex = 17;
            One.Text = "1";
            One.UseVisualStyleBackColor = true;
            One.Click += One_Click;
            // 
            // Zero
            // 
            Zero.Location = new Point(155, 486);
            Zero.Name = "Zero";
            Zero.Size = new Size(94, 29);
            Zero.TabIndex = 24;
            Zero.Text = "0";
            Zero.UseVisualStyleBackColor = true;
            Zero.Click += Zero_Click;
            // 
            // Point
            // 
            Point.Location = new Point(298, 486);
            Point.Name = "Point";
            Point.Size = new Size(94, 29);
            Point.TabIndex = 23;
            Point.Text = ".";
            Point.UseVisualStyleBackColor = true;
            Point.Click += Point_Click;
            // 
            // ETC
            // 
            ETC.Location = new Point(441, 486);
            ETC.Name = "ETC";
            ETC.Size = new Size(94, 29);
            ETC.TabIndex = 22;
            ETC.Text = "=";
            ETC.UseVisualStyleBackColor = true;
            ETC.Click += ETC_Click;
            // 
            // PrefixAddOrReduce
            // 
            PrefixAddOrReduce.Location = new Point(12, 486);
            PrefixAddOrReduce.Name = "PrefixAddOrReduce";
            PrefixAddOrReduce.Size = new Size(94, 29);
            PrefixAddOrReduce.TabIndex = 21;
            PrefixAddOrReduce.Text = "+/-";
            PrefixAddOrReduce.UseVisualStyleBackColor = true;
            PrefixAddOrReduce.Click += PrefixAddOrReduce_Click;
            // 
            // Prefix
            // 
            AutoScaleDimensions = new SizeF(9F, 20F);
            AutoScaleMode = AutoScaleMode.Font;
            ClientSize = new Size(545, 530);
            Controls.Add(Zero);
            Controls.Add(Point);
            Controls.Add(ETC);
            Controls.Add(PrefixAddOrReduce);
            Controls.Add(Two);
            Controls.Add(Three);
            Controls.Add(Add);
            Controls.Add(One);
            Controls.Add(Five);
            Controls.Add(Six);
            Controls.Add(Reduce);
            Controls.Add(Four);
            Controls.Add(Eight);
            Controls.Add(Nine);
            Controls.Add(Ride);
            Controls.Add(Seven);
            Controls.Add(Square);
            Controls.Add(SquareRoot);
            Controls.Add(Except);
            Controls.Add(CentOne);
            Controls.Add(CE);
            Controls.Add(C);
            Controls.Add(Clear);
            Controls.Add(PerCent);
            Controls.Add(Display);
            MaximizeBox = false;
            Name = "Prefix";
            Text = "计算器";
            ResumeLayout(false);
        }

        #endregion

        private RichTextBox Display;
        private Button PerCent;
        private Button Clear;
        private Button C;
        private Button CE;
        private Button Square;
        private Button SquareRoot;
        private Button Except;
        private Button CentOne;
        private Button Eight;
        private Button Nine;
        private Button Ride;
        private Button Seven;
        private Button Five;
        private Button Six;
        private Button Reduce;
        private Button Four;
        private Button Two;
        private Button Three;
        private Button Add;
        private Button One;
        private Button Zero;
        private Button Point;
        private Button ETC;
        private Button PrefixAddOrReduce;
    }
}

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用java语言实现仿Windows计算器
一个比较好的Java写的计算器代码 (转)
weixin_30609331的博客
11-20 336
1 import java.awt.BorderLayout; 2 import java.awt.Color; 3 import java.awt.GridLayout; 4 import java.awt.event.ActionEvent; 5 import java.awt.event.ActionListener; 6 ...
Java实现仿Windows计算器
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Gavin
12-28 1万+
这是很早之前，数据结构的课程设计，今天偶然翻到，觉得还是记录在这里吧~~ 当时我选的题目是：使用队列来实现数学表达式的求值： 当时突发奇想，就写了一个仿Windows下的计算器，当然实现的功能比较简单，只是实现了简单计算器和科学计算器。看下图：                 现在回想整个程序，核心部分应该是中缀表达式转后缀表达式以及后缀表达式的求值了。不过，犹记得当时
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