今天小编给大家分享一下C#怎么实现计算器功能的相关知识点，内容详细，逻辑清晰，相信大部分人都还太了解这方面的知识，所以分享这篇文章给大家参考一下，希望大家阅读完这篇文章后有所收获，下面我们一起来了解一下吧。
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.Windows.Forms;namespace MyPictureDownloader{ //http://blog.sina.com.cn/s/blog_60d576800100tf5z.html //http://jingyan.baidu.com/article/380abd0a6b80701d90192cde.html public partial class JiSuanQi : Form { public JiSuanQi() { InitializeComponent(); initButton(); } public delegate double Operater(double num1, double num2); public void initButton() { var p = new Point(20, 80); Button[] listbtn = new Button[9]; for (int i = 0; i < 9; i++) { listbtn[i] = new Button(); listbtn[i].Name = "btn" + (i + 1).ToString(); listbtn[i].Text = (i+1).ToString(); listbtn[i].SetBounds(p.X, p.Y, 50, 50); listbtn[i].Click+= new System.EventHandler(ClickHandler); this.Controls.Add(listbtn[i]); p.X += 80; if (p.X >= this.Width - 80) { p.X =20; p.Y += 60; } } } public void ClickHandler(Object sender, System.EventArgs e) { Button btn = (Button)sender; string temp=txtnum.Text.ToString()+btn.Text;//这样解决了重复点击赋值问题 txtnum.Text = temp; } private void btnzero_Click(object sender, EventArgs e) { string temp = txtnum.Text.ToString() + btnzero.Text;//这样解决了重复点击赋值问题 txtnum.Text = temp; } public double jisuan(string caozuofu, Operater fanga) { double num2 = double.Parse(txtnum.Text); double jieguo = 0; //switch(caozuofu){ // case"+": // jieguo = fanga(tempnum, num2); // break; // case "-": // jieguo = fanga(tempnum, num2); // break; // case "*": // jieguo = fanga(tempnum, num2); // break; // case "/": // jieguo = fanga(tempnum, num2); // break; //} jieguo = fanga(tempnum, num2); return jieguo; } public double add(double num1, double num2) { return num1 + num2; } public double jian(double num1, double num2) { return num1- num2; } public double cheng(double num1, double num2) { return num1 * num2; } public double chu(double num1, double num2) { double result = 0; if (num2!=0) { result= num1 / num2; } return result; } public double tempnum = 0; public string caozuofu = ""; public event Operater fangfa; private void btnresult_Click(object sender, EventArgs e) { txtnum.Text = jisuan(caozuofu, fangfa).ToString(); } private void btnadd_Click(object sender, EventArgs e) { tempnum = double.Parse(txtnum.Text); caozuofu = btnadd.Text; txtnum.Text = ""; fangfa = add; } private void btnde_Click(object sender, EventArgs e) { tempnum = double.Parse(txtnum.Text); caozuofu = btnde.Text; txtnum.Text = ""; fangfa = jian; } private void btncheng_Click(object sender, EventArgs e) { tempnum = double.Parse(txtnum.Text); caozuofu = btncheng.Text; txtnum.Text = ""; fangfa = cheng; } private void btnchu_Click(object sender, EventArgs e) { tempnum = double.Parse(txtnum.Text); caozuofu = btnchu.Text; txtnum.Text = ""; fangfa = chu; } private void btndian_Click(object sender, EventArgs e) { if (txtnum.Text.ToString()=="") { txtnum.Text = "0"; } string temp=""; if (txtnum.Text.ToString().IndexOf(".") > 0)//解决只能包含一个小数点 { temp = txtnum.Text.ToString(); } else { temp = txtnum.Text.ToString() + btndian.Text;//这样解决了重复点击赋值问题 } txtnum.Text = temp; } }}初始界面：
运行后的界面：
几个数字按钮是动态生成的，这就是我想要做的计算器。
以上就是“C#怎么实现计算器功能”这篇文章的所有内容，感谢各位的阅读！相信大家阅读完这篇文章都有很大的收获，小编每天都会为大家更新不同的知识，如果还想学习更多的知识，请关注编程网行业资讯频道。
