Add files via upload

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zsyg
2025-06-29 09:46:39 +08:00
committed by GitHub
parent 0a0ef24497
commit 24198b2e09
3 changed files with 190 additions and 0 deletions

118
tools/CalculatorForm.cs Normal file
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using System;
using System.Drawing;
using System.Windows.Forms;
using AppStore;
namespace AppStore
{
public class CalculatorForm : Form
{
private TextBox display = new TextBox();
private double firstNumber = 0;
private string operation = "";
public CalculatorForm()
{
this.Text = "计算器";
this.Size = new Size(300, 400);
this.StartPosition = FormStartPosition.CenterScreen;
CreateControls();
}
private void CreateControls()
{
// 显示框
display = new TextBox();
display.ReadOnly = true;
display.TextAlign = HorizontalAlignment.Right;
display.Font = new Font("Microsoft YaHei", 14);
display.Size = new Size(260, 40);
display.Location = new Point(20, 20);
this.Controls.Add(display);
// 按钮布局
string[] buttonLabels = {
"7", "8", "9", "/",
"4", "5", "6", "*",
"1", "2", "3", "-",
"0", ".", "=", "+"
};
for (int i = 0; i < buttonLabels.Length; i++)
{
var btn = new Button();
btn.Text = buttonLabels[i];
btn.Size = new Size(60, 50);
btn.Location = new Point(20 + (i % 4) * 65, 70 + (i / 4) * 55);
btn.Font = new Font("Microsoft YaHei", 12);
btn.Click += ButtonClickHandler;
this.Controls.Add(btn);
}
// 清除按钮
var clearBtn = new Button();
clearBtn.Text = "C";
clearBtn.Size = new Size(260, 40);
clearBtn.Location = new Point(20, 300);
clearBtn.Font = new Font("Microsoft YaHei", 12);
clearBtn.Click += (s, e) => {
display.Text = "";
firstNumber = 0;
operation = "";
};
this.Controls.Add(clearBtn);
}
private void ButtonClickHandler(object sender, EventArgs e)
{
var button = sender as Button;
if (button == null) return;
switch (button.Text)
{
case "+":
case "-":
case "*":
case "/":
if (!string.IsNullOrEmpty(display.Text))
{
firstNumber = double.Parse(display.Text);
operation = button.Text;
display.Text = "";
}
break;
case "=":
if (!string.IsNullOrEmpty(operation) && !string.IsNullOrEmpty(display.Text))
{
double secondNumber = double.Parse(display.Text);
double result = 0;
try
{
result = operation switch
{
"+" => AppStore.Calculator.Add(firstNumber, secondNumber),
"-" => AppStore.Calculator.Subtract(firstNumber, secondNumber),
"*" => AppStore.Calculator.Multiply(firstNumber, secondNumber),
"/" => AppStore.Calculator.Divide(firstNumber, secondNumber),
_ => 0
};
display.Text = result.ToString();
}
catch (DivideByZeroException)
{
MessageBox.Show("除数不能为零", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
operation = "";
}
break;
default:
display.Text += button.Text;
break;
}
}
}
}