01週作業 小算盤
1.程式碼
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 WindowsFormsApplication1
{
public partial class Form1 : Form
{
Double value = 0;
string operation = "";
bool operation_pressed = false;
public Form1()
{
InitializeComponent();
}
private void button_Click(object sender, EventArgs e)
{
if ((result.Text == "0")||(operation_pressed))
result.Clear();
operation_pressed = false;
Button b = (Button)sender;
result.Text = result.Text + b.Text;
}
private void button17_Click(object sender, EventArgs e)
{
result.Text = "0";
}
private void operator_click(object sender, EventArgs e)
{
Button b = (Button)sender;
operation = b.Text;
value = Double.Parse(result.Text);
operation_pressed = true;
equation.Text = value + " " + operation;
}
private void button16_Click(object sender, EventArgs e)
{
equation.Text = "";
switch (operation)
{
case "+":
result.Text = (value + Double.Parse(result.Text)).ToString();
break;
case "-":
result.Text = (value - Double.Parse(result.Text)).ToString();
break;
case "*":
result.Text = (value * Double.Parse(result.Text)).ToString();
break;
case "/":
result.Text = (value / Double.Parse(result.Text)).ToString();
break;
default:
break;
}
operation_pressed = false;
}
private void button18_Click(object sender, EventArgs e)
{
result.Text="0";
value = 0;
}
}
}
2.流程圖
3.程式結果
4.執行過程影片