C#實(shí)現(xiàn)簡單的計(jì)算器功能完整實(shí)例
本文實(shí)例講述了C#實(shí)現(xiàn)簡單的計(jì)算器功能。分享給大家供大家參考,具體如下:
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.Collections; using System.Threading; using System.Diagnostics; namespace CALCULATOR { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private string _sign; private double _first = 10241024; private double _second = 10241024; private string _number; private void button1_Click(object sender, EventArgs e) { _number += "1"; this.textBox1.Text += "1"; } private void button2_Click(object sender, EventArgs e) { _number += "2"; this.textBox1.Text += "2"; } private void button3_Click(object sender, EventArgs e) { _number += "3"; this.textBox1.Text += "3"; } private void button4_Click(object sender, EventArgs e) { _number += "4"; this.textBox1.Text += "4"; } private void button8_Click(object sender, EventArgs e) { _number += "5"; this.textBox1.Text += "5"; } private void button7_Click(object sender, EventArgs e) { _number += "6"; this.textBox1.Text += "6"; } private void button6_Click(object sender, EventArgs e) { _number += "7"; this.textBox1.Text += "7"; } private void button5_Click(object sender, EventArgs e) { _number += "8"; this.textBox1.Text += "8"; } private void button9_Click(object sender, EventArgs e) { _number += "9"; this.textBox1.Text += "9"; } private void button10_Click(object sender, EventArgs e) { _number += "0"; this.textBox1.Text += "0"; } private void button16_Click(object sender, EventArgs e) { //設(shè)置加號(hào)計(jì)算數(shù) SetNumber(Convert.ToDouble(_number)); if (_sign == null || _second == 10241024) { _sign = "+"; this.textBox1.Text += "+"; return; } if (_second != 10241024) { //開始進(jìn)行計(jì)算 Computer ComPro = new Computer(_sign, _first, _second); this.textBox1.Text = ComPro.Comt(out _first).ToString(); //驗(yàn)證除數(shù)為零的情況 if (_first == 10241024.10241023) { this.textBox1.Text = "0"; MessageBox.Show("除數(shù)不能為零!"); _number = null; _first = 10241024; _second = 10241024; this.textBox1.Text = null; _sign = null; this.textBox1.Text = null; } //開始初始化數(shù)據(jù) _sign = "+"; this.textBox1.Text += "+"; _second = 10241024; _number = null; return; } } private void button15_Click(object sender, EventArgs e) { //設(shè)置減號(hào)計(jì)算數(shù) SetNumber(Convert.ToDouble(_number)); if (_sign == null || _second == 10241024) { _sign = "-"; this.textBox1.Text += "-"; return; } if (_second != 10241024) { //開始進(jìn)行計(jì)算 Computer ComPro = new Computer(_sign, _first, _second); this.textBox1.Text = ComPro.Comt(out _first).ToString(); //驗(yàn)證除數(shù)為零的情況 if (_first == 10241024.10241023) { this.textBox1.Text = "0"; MessageBox.Show("除數(shù)不能為零!"); _number = null; _first = 10241024; _second = 10241024; this.textBox1.Text = null; _sign = null; this.textBox1.Text = null; } //開始初始化數(shù)據(jù) _sign = "-"; this.textBox1.Text += "-"; _second = 10241024; _number = null; return; } } private void button14_Click(object sender, EventArgs e) { //設(shè)置乘號(hào)計(jì)算數(shù) SetNumber(Convert.ToDouble(_number)); if (_sign == null || _second == 10241024) { _sign = "*"; this.textBox1.Text += "*"; return; } if (_second != 10241024) { //開始進(jìn)行計(jì)算 Computer ComPro = new Computer(_sign, _first, _second); this.textBox1.Text = ComPro.Comt(out _first).ToString(); //驗(yàn)證除數(shù)為零的情況 if (_first == 10241024.10241023) { this.textBox1.Text = "0"; MessageBox.Show("除數(shù)不能為零!"); _number = null; _first = 10241024; _second = 10241024; this.textBox1.Text = null; _sign = null; this.textBox1.Text = null; } //開始初始化數(shù)據(jù) _sign = "*"; this.textBox1.Text += "*"; _second = 10241024; _number = null; return; } } /// <summary> /// 設(shè)置除號(hào)計(jì)算數(shù) /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button11_Click(object sender, EventArgs e) { SetNumber(Convert.ToDouble(_number)); if (_sign == null || _second == 10241024) { _sign = "/"; this.textBox1.Text += "/"; return; } if (_second != 10241024) { //開始進(jìn)行計(jì)算 Computer ComPro = new Computer(_sign, _first, _second); this.textBox1.Text = ComPro.Comt(out _first).ToString(); //驗(yàn)證除數(shù)為零的情況 if (_first == 10241024.10241023) { this.textBox1.Text = "0"; this.textBox1.Text = "除數(shù)不能為零!"; _number = null; _first = 10241024; _second = 10241024; this.textBox1.Text = null; _sign = null; this.textBox1.Text = null; } //開始初始化數(shù)據(jù) _sign = "/"; this.textBox1.Text += "/"; _second = 10241024; _number = null; return; } } /// <summary> /// 清空輸入框 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button12_Click(object sender, EventArgs e) { _number = null; _first = 10241024; _second = 10241024; this.textBox1.Text = null; _sign = null; this.textBox1.Text = null; } private void button13_Click(object sender, EventArgs e) { SetNumber(Convert.ToDouble(_number)); //判斷是否設(shè)置了_second的值 if (_second == 10241024) { _second = Convert.ToDouble(_number); _number = null; } //判斷是否設(shè)置了_first的值 if (_first == 10241024) { _first = Convert.ToDouble(_number); _number = null; } //判斷是否有_sign的值 if (_sign == null) { _sign = "+"; } //開始進(jìn)行計(jì)算 Computer ComPro = new Computer(_sign, _first, _second); this.textBox1.Text = ComPro.Comt(out _first).ToString(); //驗(yàn)證除數(shù)為零的情況 if (_first == 10241024.10241023) { this.textBox1.Text = "0"; MessageBox.Show("除數(shù)不能為零!"); _number = null; _first = 10241024; _second = 10241024; this.textBox1.Text = null; _sign = null; this.textBox1.Text = null; } //開始初始化數(shù)據(jù) _sign = null; _second = 10241024; _number = null; } public class Computer { private string _sign; private double _first; private double _second; public Computer(string str, double first, double second) { _sign = str; _first = first; _second = second; } //選擇相應(yīng)的運(yùn)算符進(jìn)行運(yùn)算 public double Comt(out double first) { if (_sign == "+") { first = _first + _second; return _first + _second; } else if (_sign == "-") { first = _first - _second; return _first - _second; } else if (_sign == "*") { first = _first * _second; return _first * _second; } else if (_sign == "/") { if (_second == 0) { first = 10241024.10241023; return 10241024.10241023; } else { first = _first / _second; return _first / _second; } } else { first = 10241024.10241024; return 10241024.10241024; } } } //設(shè)置數(shù)字函數(shù) public void SetNumber(double number) { if (_first == 10241024 && _number != null) { _first = Convert.ToDouble(_number); _number = null; } else if (_second == 10241024 && _number != null) { _second = Convert.ToDouble(_number); _number = null; } } private void timer1_Tick(object sender, EventArgs e) { this.label2.Text = DateTime.Now.ToString(); } private void button24_Click(object sender, EventArgs e) { if (this.textBox1.Text == " ") { MessageBox.Show("請(qǐng)輸入數(shù)據(jù)"); this.textBox1.Text = Convert.ToInt64(textBox1.Text.ToString(), 2).ToString(); } else { this.textBox1.Text = Convert.ToInt64(textBox1.Text.ToString(), 2).ToString(); } } private void button22_Click(object sender, EventArgs e) { if (this.textBox1.Text == " ") { MessageBox.Show("請(qǐng)輸入數(shù)據(jù)"); Int64 int64 = Convert.ToInt64(textBox1.Text.ToString(), 2); this.textBox1.Text = Convert.ToString(int64,16); } else { Int64 int64 = Convert.ToInt64(textBox1.Text.ToString(), 2); this.textBox1.Text = Convert.ToString(int64, 16); } } private void button23_Click(object sender, EventArgs e) { if (this.textBox1.Text == " ") { MessageBox.Show("請(qǐng)輸入數(shù)據(jù)"); Int64 int64 = Convert.ToInt64(textBox1.Text.ToString(), 2); this.textBox1.Text = Convert.ToString(int64, 8); } else { Int64 int64 = Convert.ToInt64(textBox1.Text.ToString(), 2); this.textBox1.Text = Convert.ToString(int64, 8); } } private void button21_Click(object sender, EventArgs e) { if (this.textBox1.Text == " ") { MessageBox.Show("請(qǐng)輸入數(shù)據(jù)"); Int64 int64 = Convert.ToInt64(textBox1.Text); this.textBox1.Text = Convert.ToString(int64, 2); } else { Int64 int64 = Convert.ToInt64(textBox1.Text); this.textBox1.Text = Convert.ToString(int64, 2); } } private void button27_Click(object sender, EventArgs e) { double buffer1= Convert.ToDouble(textBox1.Text); buffer1 = 1 / buffer1; this.textBox1.Text = buffer1.ToString(); } private void button17_Click(object sender, EventArgs e) { _number += "."; this.textBox1.Text += "."; } private void button25_Click(object sender, EventArgs e) { double buffer1 = Convert.ToDouble(textBox1.Text); buffer1 = buffer1 * buffer1; this.textBox1.Text = buffer1.ToString(); } private void button26_Click(object sender, EventArgs e) { if (this.textBox1.Text == " ") { MessageBox.Show("請(qǐng)輸入數(shù)據(jù)"); Int64 int64 = Convert.ToInt64(this.textBox1.Text); Int64 temp1 = 1; while (int64 > 1) { temp1 = temp1*int64 ; int64--; } this.textBox1.Text = temp1.ToString(); } else { Int64 int64 = Convert.ToInt64(this.textBox1.Text); Int64 temp1 = 1; while (int64 > 1) { temp1 = temp1 * int64; int64--; } this.textBox1.Text = temp1.ToString(); } } private void button28_Click(object sender, EventArgs e) { //Int64 int64 = Convert.ToInt64(this.textBox1.Text); //double temp=Math.Log10(int64); //this.textBox1.Text = temp.ToString(); Double temp1, temp2; string[] STRarry = new string[2]; STRarry = this.textBox1.Text.Split('.'); temp1 = Convert.ToDouble(STRarry[0]); temp2 = Convert.ToDouble(STRarry[1]); // double temp1 = Convert.ToDouble(this.textBox1.Text); temp2 = Math.Log(temp2,temp1 ); this.textBox1.Text = temp2.ToString(); } private void button18_Click(object sender, EventArgs e) { double temp1 = Convert.ToDouble(this.textBox1.Text); double temp2 = Math.Sin(temp1); this.textBox1.Text = temp2.ToString(); } private void button19_Click(object sender, EventArgs e) { double temp1 = Convert.ToDouble(this.textBox1.Text); double temp2 = Math.Cos(temp1); this.textBox1.Text = temp2.ToString(); } private void button20_Click(object sender, EventArgs e) { double temp1 = Convert.ToDouble(this.textBox1.Text); double temp2 = Math.Tan(temp1); this.textBox1.Text = temp2.ToString(); } private void button33_Click(object sender, EventArgs e) { Double temp1, temp2; string[] STRarry=new string[2]; STRarry=this.textBox1.Text.Split('.'); temp1 = Convert.ToDouble(STRarry[0]); temp2 = Convert.ToDouble(STRarry[1]); // double temp1 = Convert.ToDouble(this.textBox1.Text); temp2 = Math.Pow(temp1,temp2); this.textBox1.Text = temp2.ToString(); } /// <summary> /// 計(jì)算e的temp1次冪 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button31_Click(object sender, EventArgs e) { double temp1 = Convert.ToDouble(this.textBox1.Text); double temp2 = Math.Exp(temp1); this.textBox1.Text = temp2.ToString(); } private void button34_Click(object sender, EventArgs e) { double temp1 = Convert.ToDouble(this.textBox1.Text); double temp2 = Math.Sqrt(temp1); this.textBox1.Text = temp2.ToString(); } private void button32_Click(object sender, EventArgs e) { Double temp1, temp2; string[] STRarry = new string[2]; STRarry = this.textBox1.Text.Split('.'); temp1 = Convert.ToDouble(STRarry[0]); temp2 = Convert.ToDouble(STRarry[1]); // double temp1 = Convert.ToDouble(this.textBox1.Text); temp2 = Math.IEEERemainder(temp1, temp2); this.textBox1.Text = temp2.ToString(); } /// <summary> /// 圓的面積 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button30_Click(object sender, EventArgs e) { double buffer1 = Convert.ToDouble(textBox1.Text); buffer1 =3.1415926*buffer1*buffer1; this.textBox1.Text = buffer1.ToString(); } /// <summary> /// 三角形面積 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void button29_Click(object sender, EventArgs e) { Double temp1, temp2,temp3,p,area; string[] STRarry = new string[3]; STRarry = this.textBox1.Text.Split('.'); temp1 = Convert.ToDouble(STRarry[0]); temp2 = Convert.ToDouble(STRarry[1]); temp3 = Convert.ToDouble(STRarry[2]); // double temp1 = Convert.ToDouble(this.textBox1.Text); p = (temp1 + temp2 + temp3) / 2; area= p * (p - temp1) * (p - temp2) * (p - temp3); area = Math.Sqrt(area); this.textBox1.Text = area.ToString(); } private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e) { string str = e.Link.ToString(); Process.Start(str); } private void Form1_Load(object sender, EventArgs e) { } } }
運(yùn)行效果:
PS:這里再為大家推薦幾款計(jì)算工具供大家進(jìn)一步參考借鑒:
在線一元函數(shù)(方程)求解計(jì)算工具:
http://tools.jb51.net/jisuanqi/equ_jisuanqi
科學(xué)計(jì)算器在線使用_高級(jí)計(jì)算器在線計(jì)算:
http://tools.jb51.net/jisuanqi/jsqkexue
在線計(jì)算器_標(biāo)準(zhǔn)計(jì)算器:
http://tools.jb51.net/jisuanqi/jsq
更多關(guān)于C#相關(guān)內(nèi)容感興趣的讀者可查看本站專題:《C#數(shù)據(jù)結(jié)構(gòu)與算法教程》、《C#程序設(shè)計(jì)之線程使用技巧總結(jié)》、《C#常見控件用法教程》、《WinForm控件用法總結(jié)》、《C#數(shù)組操作技巧總結(jié)》及《C#面向?qū)ο蟪绦蛟O(shè)計(jì)入門教程》
希望本文所述對(duì)大家C#程序設(shè)計(jì)有所幫助。
相關(guān)文章
基于NET?Core?的Nuget包制作、發(fā)布和運(yùn)用流程解析(完整過程)
這篇文章主要介紹了基于NET?Core?的Nuget包制作、發(fā)布和運(yùn)用流程,本文通過圖文并茂的形式給大家介紹了Nuget包制作過程,感興趣的朋友跟隨小編一起看看吧2022-02-02使用C#快速搭建一個(gè)在windows運(yùn)行的exe應(yīng)用
這篇文章主要介紹了使用C#快速搭建一個(gè)在windows運(yùn)行的exe應(yīng)用,這是一個(gè)比較舊的內(nèi)容,但是一直都沒有空寫,今天花點(diǎn)時(shí)間,把我掌握的C# 分享給初學(xué)的人或者感興趣的人,希望能對(duì)你有一定幫助,感興趣的小伙伴跟著小編一起來看看吧2024-07-07spreadsheetgear插件屏蔽鼠標(biāo)右鍵的方法
今天用到spreadsheetGear插件,然后右鍵有插件自己的菜單。都是英文的,而且還能打開新的窗體。嵌到程序里面,不太合適,所以著手屏蔽2014-02-02C#獲取兩個(gè)數(shù)的最大公約數(shù)和最小公倍數(shù)示例
本文介紹了使用C#獲取兩個(gè)數(shù)的最大公約數(shù)和最小公倍數(shù)的示例,大家參考使用吧2014-01-01Visual Studio 2019配置vue項(xiàng)目的圖文教程詳解
這篇文章主要介紹了Visual Studio 2019配置vue項(xiàng)目的教程,本文通過圖文并茂的形式給大家介紹的非常詳細(xì),對(duì)大家的學(xué)習(xí)或工作,具有一定的參考借鑒價(jià)值,需要的朋友可以參考下2020-03-03WPF利用TabControl控件實(shí)現(xiàn)拖拽排序功能
在UI交互中,拖拽操作是一種非常簡單友好的交互,這篇文章主要為大家介紹了WPF如何利用TabControl控件實(shí)現(xiàn)拖拽排序功能,需要的小伙伴可以參考一下2023-10-10Unity實(shí)現(xiàn)紅酒識(shí)別的示例代碼
本文主要介紹了如何通過Unity實(shí)現(xiàn)紅酒識(shí)別,可以實(shí)現(xiàn)識(shí)別圖像中的紅酒標(biāo)簽,返回紅酒名稱、國家、產(chǎn)區(qū)、酒莊、類型、糖分、葡萄品種、酒品描述等信息,感興趣的可以學(xué)習(xí)一下2022-02-02