您好,登錄后才能下訂單哦!
今天小編給大家分享一下C#怎么實(shí)現(xiàn)計(jì)算器功能的相關(guān)知識(shí)點(diǎn),內(nèi)容詳細(xì),邏輯清晰,相信大部分人都還太了解這方面的知識(shí),所以分享這篇文章給大家參考一下,希望大家閱讀完這篇文章后有所收獲,下面我們一起來了解一下吧。
代碼:
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;//這樣解決了重復(fù)點(diǎn)擊賦值問題 txtnum.Text = temp; } private void btnzero_Click(object sender, EventArgs e) { string temp = txtnum.Text.ToString() + btnzero.Text;//這樣解決了重復(fù)點(diǎn)擊賦值問題 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)//解決只能包含一個(gè)小數(shù)點(diǎn) { temp = txtnum.Text.ToString(); } else { temp = txtnum.Text.ToString() + btndian.Text;//這樣解決了重復(fù)點(diǎn)擊賦值問題 } txtnum.Text = temp; } } }
初始界面:
運(yùn)行后的界面:
幾個(gè)數(shù)字按鈕是動(dòng)態(tài)生成的,這就是我想要做的計(jì)算器。
以上就是“C#怎么實(shí)現(xiàn)計(jì)算器功能”這篇文章的所有內(nèi)容,感謝各位的閱讀!相信大家閱讀完這篇文章都有很大的收獲,小編每天都會(huì)為大家更新不同的知識(shí),如果還想學(xué)習(xí)更多的知識(shí),請(qǐng)關(guān)注億速云行業(yè)資訊頻道。
免責(zé)聲明:本站發(fā)布的內(nèi)容(圖片、視頻和文字)以原創(chuàng)、轉(zhuǎn)載和分享為主,文章觀點(diǎn)不代表本網(wǎng)站立場(chǎng),如果涉及侵權(quán)請(qǐng)聯(lián)系站長(zhǎng)郵箱:is@yisu.com進(jìn)行舉報(bào),并提供相關(guān)證據(jù),一經(jīng)查實(shí),將立刻刪除涉嫌侵權(quán)內(nèi)容。