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這篇文章主要介紹了C#如何實(shí)現(xiàn)簡易的計(jì)算器,具有一定借鑒價(jià)值,感興趣的朋友可以參考下,希望大家閱讀完這篇文章之后大有收獲,下面讓小編帶著大家一起了解一下。
C#實(shí)現(xiàn)簡易的計(jì)算器的具體內(nèi)容如下
(1)Form1窗體設(shè)計(jì)界面如下:
(2)運(yùn)算類型的下列列表中包括:加法、減法、乘法、除法、取模共5種操作;初始狀態(tài)下,選擇“加法”運(yùn)算,當(dāng)用戶更改運(yùn)算類型時(shí),下面式子中的加號(hào)“+”應(yīng)自動(dòng)更改為相應(yīng)的運(yùn)算符;
(3)當(dāng)用戶在前兩個(gè)文本框中輸入時(shí),最后得到結(jié)果的文本框始終是空白狀態(tài),注意該文本框是只讀的,用戶不能更改其值;只有當(dāng)用戶單擊確定按鈕時(shí),結(jié)果文本框中才會(huì)顯示正確的計(jì)算結(jié)果;
(4)使用過程中,用戶修改運(yùn)算類型時(shí),三個(gè)文本框的內(nèi)容自動(dòng)清空;
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 Csharp7_1 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void radioButton1_CheckedChanged(object sender, EventArgs e) { if (radioButton1.Checked == true) { label3.Text = "+"; textBox1.Text = ""; textBox2.Text = ""; textBox3.Text = ""; } } private void radioButton2_CheckedChanged(object sender, EventArgs e) { if (radioButton2.Checked == true) { label3.Text = "-"; textBox1.Text = ""; textBox2.Text = ""; textBox3.Text = ""; } } private void radioButton3_CheckedChanged(object sender, EventArgs e) { if (radioButton3.Checked == true) { label3.Text = "*"; textBox1.Text = ""; textBox2.Text = ""; textBox3.Text = ""; } } private void radioButton4_CheckedChanged(object sender, EventArgs e) { if (radioButton4.Checked == true) { label3.Text = "÷"; textBox1.Text = ""; textBox2.Text = ""; textBox3.Text = ""; } } private void radioButton5_CheckedChanged(object sender, EventArgs e) { if (radioButton5.Checked == true) { label3.Text = "%"; textBox1.Text = ""; textBox2.Text = ""; textBox3.Text = ""; } } private void button1_Click(object sender, EventArgs e) { if (radioButton1.Checked == true) { textBox3.Text = Convert.ToString((int.Parse(textBox1.Text)) + (int.Parse(textBox2.Text))); } if (radioButton2.Checked == true) { textBox3.Text = Convert.ToString((int.Parse(textBox1.Text)) - (int.Parse(textBox2.Text))); } if (radioButton3.Checked == true) { textBox3.Text = Convert.ToString((int.Parse(textBox1.Text)) * (int.Parse(textBox2.Text))); } if (radioButton4.Checked == true) { textBox3.Text = Convert.ToString((double.Parse(textBox1.Text)) / (double.Parse(textBox2.Text))); } if (radioButton5.Checked == true) { textBox3.Text = Convert.ToString((int.Parse(textBox1.Text)) % (int.Parse(textBox2.Text))); } } } }
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