关于c#计算机.doc

盐城师范学院信息科学与技术学院实验报告课程名称C#程序设计 班级09（1）学号09261111姓名冯月实验地点实验日期2011-12-27实验学时2实验名称计算器实验类型验证性综合性设计性实验目的：学会在原来的基础上改进计算器实验环境：(包括软件平台和硬件平台)Visual S 2008 Window xp 实验内容及步骤 (含源程序)：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 计算器 public partial class Form1 : Form public Form1() InitializeComponent(); /数值按钮 private void btn_0_Click(object sender, EventArgs e) Button btn = (Button)sender; if (textBox1.Text.Equals(0) textBox1.Text = btn.Text; else textBox1.Text += btn.Text; private void btn_1_Click(object sender, EventArgs e) Button btn = (Button)sender; if (textBox1.Text.Equals(0) textBox1.Text = btn.Text; else textBox1.Text += btn.Text; private void btn_2_Click(object sender, EventArgs e) Button btn = (Button)sender; if (textBox1.Text.Equals(0) textBox1.Text = btn.Text; else textBox1.Text += btn.Text; private void btn_3_Click(object sender, EventArgs e) Button btn = (Button)sender; if (textBox1.Text.Equals(0) textBox1.Text = btn.Text; else textBox1.Text += btn.Text; private void btn_4_Click(object sender, EventArgs e) Button btn = (Button)sender; if (textBox1.Text.Equals(0) textBox1.Text = btn.Text; else textBox1.Text += btn.Text; private void btn_5_Click(object sender, EventArgs e) Button btn = (Button)sender; if (textBox1.Text.Equals(0) textBox1.Text = btn.Text; else textBox1.Text += btn.Text; private void btn_6_Click(object sender, EventArgs e) Button btn = (Button)sender; if (textBox1.Text.Equals(0) textBox1.Text = btn.Text; else textBox1.Text += btn.Text; private void btn_7_Click(object sender, EventArgs e) Button btn = (Button)sender; if (textBox1.Text.Equals(0) textBox1.Text = btn.Text; else textBox1.Text += btn.Text; private void btn_8_Click(object sender, EventArgs e) Button btn = (Button)sender; if (textBox1.Text.Equals(0) textBox1.Text = btn.Text; else textBox1.Text += btn.Text; private void btn_9_Click(object sender, EventArgs e) Button btn = (Button)sender; if (textBox1.Text.Equals(0) textBox1.Text = btn.Text; else textBox1.Text += btn.Text; private void btn_point_Click(object sender, EventArgs e) Button btn = (Button)sender; textBox1.Text += btn.Text; /加法按钮 private void btn_Plus_Click(object sender, EventArgs e) Button btn = (Button)sender; textBox1.Text = textBox1.Text + + btn.Text + ; /减法按钮 private void btn_Minus_Click(object sender, EventArgs e) Button btn = (Button)sender; textBox1.Text = textBox1.Text + + btn.Text + ; /乘法按钮 private void btn_Mul_Click(object sender, EventArgs e) Button btn = (Button)sender; textBox1.Text = textBox1.Text + + btn.Text + ; /除法按钮 private void btn_Div_Click(object sender, EventArgs e) Button btn = (Button)sender; textBox1.Text = textBox1.Text + + btn.Text + ; /清空按钮 private void btn_Clear_Click(object sender, EventArgs e) textBox1.Text = 0; /等于号按钮 private void btn_Equal_Click(object sender, EventArgs e) int space1 = textBox1.Text.IndexOf( );/出现第一个空格的位置 int space2 = textBox1.Text.LastIndexOf( );/出现第二个空格的位置 if (space1 1) MessageBox.Show(对不起，第一个数值的小数点个数不对！); return; /判断第二个数值的小数点个数 int sum2 = s2.Split(.).Length - 1; if (sum2 1) MessageBox.Show(对不起，第二个数值的小数点个数不对！); return; double num1 = Convert.ToDouble(s1); double num2 = Convert.ToDouble(s2); if (+.Equals(oper) textBox1.Text = (num1 + num2).ToString(); else if (-.Equals(oper) textBox1.Text = (num1 - num2).ToString(); else if (*.Equals(oper) textBox1.Text = (num1 * num2).ToString(); else if (/.Equals(oper) if (num2 = 0) MessageBox.Show(对不起，除数不能为0！); return; else textBox1.Text = (num1 / num2).ToString(); else MessageBox.Show(对不起，运算符号错误！); return; /删除符号 private void btn_del_Click(object sender, EventArgs e) if (textBox1.Text.Length = 1) textBox1.Text = 0; else textBox1.Text = textBox1.Text.Substring(0, textBox1.Text.Length - 1); /开根符号 private void btn_sqrt_Click(object sender, EventArgs e) double sqrtNumber = Convert.ToDouble(textBox1.Text); if (sqrtNumber 0) MessageBox.Show(对不起，开根数不可以小于0!); return; else textBox1.Text = Math.Sqrt(sqrtNumber).ToString(); /倒数符号 private void btn_countDown_Click(object sender, EventArgs e) double countdownNumber = Convert.ToDouble(textBox1.Text); if (countdownNumber = 0) MessageBox.Show(对不起，0没有倒数！); return; else countdownNumber = 1 / countdownNumber; textBox1.Text = countdownNumber.ToString(); /关闭窗口 private void Form1_FormClosing(object sender, FormClosingEventArgs e) if (DialogResult.No = Mes