实例介绍
【实例简介】
数学计算器有很多种实现方式,这是其中比较笨的一种,仅供参考。
【实例截图】
【核心代码】
using System;
using System.Windows.Forms;
namespace WindowsFormsApp9
{
public partial class Form1 : Form
{
public double x = 0;
public double y = 0;
public double jieguo = 0;
public char fuhao = '0';
public bool ky = false;
public Form1()
{
InitializeComponent();
}
public void yunshuan()
{
switch (fuhao)
{
case ' ':
{
jieguo = x y;
}
break;
case '-':
{
jieguo = x - y;
}
break;
case '*':
{
jieguo = x * y;
}
break;
case '/':
{
jieguo = x / y;
}
break;
default:
break;
}
}
private void buttonDEN_Click(object sender, EventArgs e)
{
ky = false;
x = jieguo;
this.textBox1.Text = Convert.ToString(jieguo);
}
private void buttonJIA_Click(object sender, EventArgs e)
{
if(ky==true)
{
ky = false;
x = jieguo;
}
fuhao = ' ';
ky = true;
this.textBox1.Text = "0";
}
private void buttonJIAN_Click(object sender, EventArgs e)
{
if (ky == true)
{
ky = false;
x = jieguo;
}
fuhao = '-';
ky = true;
this.textBox1.Text = "0";
}
private void buttonCHENG_Click(object sender, EventArgs e)
{
if (ky == true)
{
ky = false;
x = jieguo;
}
fuhao = '*';
ky = true;
this.textBox1.Text = "0";
}
private void buttonCHU_Click(object sender, EventArgs e)
{
if (ky == true)
{
ky = false;
x = jieguo;
}
fuhao = '/';
ky = true;
this.textBox1.Text = "0";
}
private void button0_Click(object sender, EventArgs e)
{
if (this.textBox1.Text == "0")
{
this.textBox1.Text = "0";
}
else if (this.textBox1.Text.Length < 9)
{
this.textBox1.Text = "0";
}
if (ky == false)
{
x = Convert.ToDouble(this.textBox1.Text);
}
else if (ky == true)
{
y = Convert.ToDouble(this.textBox1.Text);
yunshuan();
}
}
private void button1_Click(object sender, EventArgs e)
{
if (this.textBox1.Text == "0")
{
this.textBox1.Text = "1";
}
else if(this.textBox1.Text.Length < 9)
{
this.textBox1.Text = "1";
}
if (ky == false)
{
x = Convert.ToDouble(this.textBox1.Text);
}
else if (ky == true)
{
y = Convert.ToDouble(this.textBox1.Text);
yunshuan();
}
}
private void button2_Click(object sender, EventArgs e)
{
if (this.textBox1.Text == "0")
{
this.textBox1.Text = "2";
}
else if (this.textBox1.Text.Length < 9)
{
this.textBox1.Text = "2";
}
if (ky == false)
{
x = Convert.ToDouble(this.textBox1.Text);
}
else if (ky == true)
{
y = Convert.ToDouble(this.textBox1.Text);
yunshuan();
}
}
private void button3_Click(object sender, EventArgs e)
{
if (this.textBox1.Text == "0")
{
this.textBox1.Text = "3";
}
else if (this.textBox1.Text.Length < 9)
{
this.textBox1.Text = "3";
}
if (ky == false)
{
x = Convert.ToDouble(this.textBox1.Text);
}
else if (ky == true)
{
y = Convert.ToDouble(this.textBox1.Text);
yunshuan();
}
}
private void button4_Click(object sender, EventArgs e)
{
if (this.textBox1.Text == "0")
{
this.textBox1.Text = "4";
}
else if (this.textBox1.Text.Length < 9)
{
this.textBox1.Text = "4";
}
if (ky == false)
{
x = Convert.ToDouble(this.textBox1.Text);
}
else if (ky == true)
{
y = Convert.ToDouble(this.textBox1.Text);
yunshuan();
}
}
private void button5_Click(object sender, EventArgs e)
{
if (this.textBox1.Text == "0")
{
this.textBox1.Text = "5";
}
else if (this.textBox1.Text.Length < 9)
{
this.textBox1.Text = "5";
}
if (ky == false)
{
x = Convert.ToDouble(this.textBox1.Text);
}
else if (ky == true)
{
y = Convert.ToDouble(this.textBox1.Text);
yunshuan();
}
}
private void button6_Click(object sender, EventArgs e)
{
if (this.textBox1.Text == "0")
{
this.textBox1.Text = "6";
}
else if (this.textBox1.Text.Length < 9)
{
this.textBox1.Text = "6";
}
if (ky == false)
{
x = Convert.ToDouble(this.textBox1.Text);
}
else if (ky == true)
{
y = Convert.ToDouble(this.textBox1.Text);
yunshuan();
}
}
private void button7_Click(object sender, EventArgs e)
{
if (this.textBox1.Text == "0")
{
this.textBox1.Text = "7";
}
else if (this.textBox1.Text.Length < 9)
{
this.textBox1.Text = "7";
}
if (ky == false)
{
x = Convert.ToDouble(this.textBox1.Text);
}
else if (ky == true)
{
y = Convert.ToDouble(this.textBox1.Text);
yunshuan();
}
}
private void button8_Click(object sender, EventArgs e)
{
if (this.textBox1.Text == "0")
{
this.textBox1.Text = "8";
}
else if (this.textBox1.Text.Length < 9)
{
this.textBox1.Text = "8";
}
if (ky == false)
{
x = Convert.ToDouble(this.textBox1.Text);
}
else if (ky == true)
{
y = Convert.ToDouble(this.textBox1.Text);
yunshuan();
}
}
private void button9_Click(object sender, EventArgs e)
{
if (this.textBox1.Text == "0")
{
this.textBox1.Text = "9";
}
else if (this.textBox1.Text.Length < 9)
{
this.textBox1.Text = "9";
}
if (ky == false)
{
x = Convert.ToDouble(this.textBox1.Text);
}
else if (ky == true)
{
y = Convert.ToDouble(this.textBox1.Text);
yunshuan();
}
}
private void buttonDIAN_Click(object sender, EventArgs e)
{
string str = ".";
if (this.textBox1.Text.Contains(str))
{
return;
}
else if (this.textBox1.Text.Length < 8)
{
this.textBox1.Text = ".";
}
if (ky == false)
{
x = Convert.ToDouble(this.textBox1.Text);
}
else if (ky == true)
{
y = Convert.ToDouble(this.textBox1.Text);
yunshuan();
}
}
private void buttonRESET_Click(object sender, EventArgs e)
{
x = 0;
y = 0;
jieguo = 0;
fuhao = '0';
ky = false;
this.textBox1.Text = "0";
}
}
}
标签: WindowsForms C# 数学 计算器
小贴士
感谢您为本站写下的评论,您的评论对其它用户来说具有重要的参考价值,所以请认真填写。
- 类似“顶”、“沙发”之类没有营养的文字,对勤劳贡献的楼主来说是令人沮丧的反馈信息。
- 相信您也不想看到一排文字/表情墙,所以请不要反馈意义不大的重复字符,也请尽量不要纯表情的回复。
- 提问之前请再仔细看一遍楼主的说明,或许是您遗漏了。
- 请勿到处挖坑绊人、招贴广告。既占空间让人厌烦,又没人会搭理,于人于己都无利。
关于好例子网
本站旨在为广大IT学习爱好者提供一个非营利性互相学习交流分享平台。本站所有资源都可以被免费获取学习研究。本站资源来自网友分享,对搜索内容的合法性不具有预见性、识别性、控制性,仅供学习研究,请务必在下载后24小时内给予删除,不得用于其他任何用途,否则后果自负。基于互联网的特殊性,平台无法对用户传输的作品、信息、内容的权属或合法性、安全性、合规性、真实性、科学性、完整权、有效性等进行实质审查;无论平台是否已进行审查,用户均应自行承担因其传输的作品、信息、内容而可能或已经产生的侵权或权属纠纷等法律责任。本站所有资源不代表本站的观点或立场,基于网友分享,根据中国法律《信息网络传播权保护条例》第二十二与二十三条之规定,若资源存在侵权或相关问题请联系本站客服人员,点此联系我们。关于更多版权及免责申明参见 版权及免责申明
网友评论
我要评论