如何用C#制作一个计算器

问题描述

精选答案

要新建一个项目，类型是window窗体应用程序，然后使用工具箱中的组件布局计算器窗口，然后双击每个组件，为其添加代码，我写了一个简单计算器代码，我写的这个实现的功能就是整数或小数的四则运算，输错可以清零重新输入。你也不用和我的一模一样，我只是为你提供一个思路，具体情况你自己试着做吧，这个为题不难，我的代码如下： usingSystem; usingSystem.Collections.Generic; usingSystem.ComponentModel; usingSystem.Data; usingSystem.Drawing; usingSystem.Linq; usingSystem.Text; usingSystem.Windows.Forms;namespace计算器 { publicpartialclassForm1:Form { charfh; doublenumber,temp; privatevoidForm1_Load(objectsender,EventArgse) { } publicForm1() { InitializeComponent(); }privatevoidbut1_Click(objectsender,EventArgse) { textBox1.Text=textBox1.Text+

"1

"; }privatevoidbut2_Click(objectsender,EventArgse) { textBox1.Text=textBox1.Text+

"2

"; }privatevoidbut3_Click(objectsender,EventArgse) { textBox1.Text=textBox1.Text+

"3

"; }privatevoidbut4_Click(objectsender,EventArgse) { textBox1.Text=textBox1.Text+

"4

"; }privatevoidbut5_Click(objectsender,EventArgse) { textBox1.Text=textBox1.Text+

"5

"; }privatevoidbut6_Click(objectsender,EventArgse) { textBox1.Text=textBox1.Text+

"6

"; }privatevoidbut7_Click(objectsender,EventArgse) { textBox1.Text=textBox1.Text+

"7

"; }privatevoidbut8_Click(objectsender,EventArgse) { textBox1.Text=textBox1.Text+

"8

"; }privatevoidbut9_Click(objectsender,EventArgse) { textBox1.Text=textBox1.Text+

"9

"; }privatevoidbut0_Click(objectsender,EventArgse) { textBox1.Text=textBox1.Text+

"0

"; } privatevoidbut10_Click_1(objectsender,EventArgse) { textBox1.Text=textBox1.Text+

".

"; } privatevoidbutAdd_Click(objectsender,EventArgse) { number=double.Parse(textBox1.Text); fh='+'; textBox1.Text=null; } privatevoidbutMin_Click(objectsender,EventArgse) { number=double.Parse(textBox1.Text); fh='-'; textBox1.Text=null; }privatevoidbutMul_Click(objectsender,EventArgse) { number=double.Parse(textBox1.Text); fh='*'; textBox1.Text=null; }privatevoidbutDiv_Click(objectsender,EventArgse) { number=double.Parse(textBox1.Text); fh='/'; textBox1.Text=null; }privatevoidbutRev_Click(objectsender,EventArgse) { fh=''; number=0; temp=0; textBox1.Text=null; }privatevoidbutApp_Click(objectsender,EventArgse) { temp=double.Parse(textBox1.Text); switch(fh) { case'+': number+=temp; break; case'-': number-=temp; break; case'*': number*=temp; break; case'/': number/=temp; break; } textBox1.Text=number.ToString(); fh=''; number=0; temp=0; } } }

其他回答

经济奇谈

// 打开系统自带的计算器 System.Diagnostics.Process.Start(

"calc

");