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Calculator_王一涵_无38 #11

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Calculator_王一涵_无38 #11

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5653ce7
Update MainPage.xaml
yihan-wa Aug 31, 2024
90acf96
Update MainPage.xaml
yihan-wa Aug 31, 2024
2882f9e
Update MainPage.xaml.cs
yihan-wa Aug 31, 2024
c0d16c7
Update SubPage.xaml
yihan-wa Aug 31, 2024
2bff361
Update SubPage.xaml.cs
yihan-wa Aug 31, 2024
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6 changes: 3 additions & 3 deletions MAUICalculator/MainPage.xaml
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
<?xml version="1.0" encoding="utf-8" ?>
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
x:Class="MAUICalculator.MainPage">
Expand Down Expand Up @@ -27,9 +27,9 @@
<Label x:Name="displayLabel" Text="0" FontSize="Large" HorizontalTextAlignment="End" Grid.Row="0" Grid.ColumnSpan="4" />

<!-- 使用Button创建键盘按钮，并占据特定的Grid位置，设置Clicked事件处理程序 -->
<Button Text="AC" Background="LightSkyBlue" Clicked="OnClearClicked" Grid.Row="1" Grid.Column="0" Grid.RowSpan="1" Grid.ColumnSpan="3"/>
<Button Text="AC" Background="LightSkyBlue" Clicked="OnClearClicked" Grid.Row="1" Grid.Column="0" Grid.RowSpan="1" Grid.ColumnSpan="2"/>
<Button Text="DEL" Background="LightSkyBlue" Clicked="OnDeleteClicked" Grid.Row="1" Grid.Column="2"/>
<Button Text="/" Background="LightSkyBlue" Clicked="OnOperatorClicked" Grid.Row="1" Grid.Column="3"/>

<Button Text="7" Background="LightSkyBlue" Clicked="OnNumberClicked" Grid.Row="2" Grid.Column="0"/>
<Button Text="8" Background="LightSkyBlue" Clicked="OnNumberClicked" Grid.Row="2" Grid.Column="1"/>
<Button Text="9" Background="LightSkyBlue" Clicked="OnNumberClicked" Grid.Row="2" Grid.Column="2"/>
Expand Down
120 changes: 69 additions & 51 deletions MAUICalculator/MainPage.xaml.cs
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Original file line number Diff line number Diff line change
@@ -1,114 +1,132 @@
namespace MAUICalculator
using System;
using Microsoft.Maui.Controls;

namespace MAUICalculator
{
public partial class MainPage : ContentPage
{
int count = 0;

public MainPage()
{
InitializeComponent();
LoadState();
}

private void LoadState()
{
var state = CalculatorState.Instance;
displayLabel.Text = state.IsResult ? state.LastNumber.ToString() : state.CurrentNumber.ToString();
}

// 定义一些变量来存储当前输入的数字，当前选择的运算符，以及上一次计算的结果
private double currentNumber = 0;
private double lastNumber = 0;
private string currentOperator = "";
private bool isResult = false;
private void OnDeleteClicked(object sender, EventArgs e)
{
var state = CalculatorState.Instance;
if (state.IsResult) displayLabel.Text = "";
else
{
if (state.CurrentOperator != "")
{
state.CurrentOperator = "";
displayLabel.Text = state.LastNumber.ToString();
}
else
{
displayLabel.Text = displayLabel.Text.Remove(displayLabel.Text.Length - 1);
if (displayLabel.Text == "") displayLabel.Text += "0";
state.CurrentNumber = double.Parse(displayLabel.Text);
}
}
}

// 定义OnNumberClicked方法来处理数字按钮点击事件
private void OnNumberClicked(object sender, EventArgs e)
{
// 获取按钮的文本值
var button = sender as Button;
var number = button.Text;
var state = CalculatorState.Instance;

// 如果当前显示的是结果，或者是0，就清空显示屏
if (isResult || displayLabel.Text == "0")
if (state.IsResult || displayLabel.Text == "0")
{
displayLabel.Text = "";
if (number == ".")
displayLabel.Text = "0";
isResult = false;
state.IsResult = false;
}

// 将数字追加到显示屏，并更新当前输入的数字
displayLabel.Text += number;
currentNumber = double.Parse(displayLabel.Text);
state.CurrentNumber = double.Parse(displayLabel.Text);
}

// 定义OnOperatorClicked方法来处理运算符按钮点击事件
private void OnOperatorClicked(object sender, EventArgs e)
{
// 获取按钮的文本值
var button = sender as Button;
var op = button.Text;
var state = CalculatorState.Instance;

// 如果当前的运算符不为空，就执行上一次选择的运算，并显示结果
if (currentOperator != "")
if (state.CurrentOperator != "")
{
Calculate();
displayLabel.Text = lastNumber.ToString();
isResult = true;
if (!state.IsResult)
{
Calculate();
displayLabel.Text = state.LastNumber.ToString();
state.IsResult = true;
}
}
else
{
// 否则，就将当前输入的数字赋值给上一次计算的结果
lastNumber = currentNumber;
state.LastNumber = state.CurrentNumber;
displayLabel.Text = "0";
isResult = false;
state.IsResult = false;
}

// 将当前选择的运算符赋值给变量，并清空当前输入的数字
currentOperator = op;
state.CurrentOperator = op;
}

// 定义OnEqualClicked方法来处理等号按钮点击事件
private void OnEqualClicked(object sender, EventArgs e)
{
// 如果当前选择的运算符不为空，就执行上一次选择的运算，并显示结果
if (currentOperator != "")
var state = CalculatorState.Instance;
if (state.CurrentOperator != "")
{
Calculate();
displayLabel.Text = lastNumber.ToString();
isResult = true;
currentOperator = "";
displayLabel.Text = state.LastNumber.ToString();
state.CurrentOperator = "";
state.IsResult = true;
}
}

// 定义OnEqualClicked方法来处理等号按钮点击事件
private void OnClearClicked(object sender, EventArgs e)
{
currentNumber = 0;
lastNumber = 0;
currentOperator = "";
isResult = false;
displayLabel.Text = lastNumber.ToString();
var state = CalculatorState.Instance;
state.CurrentNumber = 0;
state.LastNumber = 0;
state.CurrentOperator = "";
state.IsResult = false;
displayLabel.Text = state.LastNumber.ToString();
}

// 定义Calculate方法来执行运算逻辑
private void Calculate()
{
// 根据当前选择的运算符，对上一次计算的结果和当前输入的数字进行相应的运算，并更新上一次计算的结果
switch (currentOperator)
var state = CalculatorState.Instance;
switch (state.CurrentOperator)
{
case "+":
lastNumber += currentNumber;
state.LastNumber += state.CurrentNumber;
break;
case "-":
lastNumber -= currentNumber;
state.LastNumber -= state.CurrentNumber;
break;
case "*":
lastNumber *= currentNumber;
state.LastNumber *= state.CurrentNumber;
break;
case "/":
lastNumber /= currentNumber;
break;
default:
state.LastNumber /= state.CurrentNumber;
break;
}
lastNumber = Math.Round(lastNumber, 4);
currentNumber = lastNumber;
state.LastNumber = Math.Round(state.LastNumber, 4);
state.CurrentNumber = state.LastNumber;
}
}

private async void OnNavigateToComplexModeClicked(object sender, EventArgs e)
{
await Navigation.PushAsync(new SubPage());
}
}
}
59 changes: 52 additions & 7 deletions MAUICalculator/SubPage.xaml
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Original file line number Diff line number Diff line change
Expand Up @@ -3,10 +3,55 @@
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
x:Class="MAUICalculator.SubPage"
Title="Advanced Calculator">
<VerticalStackLayout>
<Label
Text="Implement your advanced calculaor here!"
VerticalOptions="Center"
HorizontalOptions="Center" />
</VerticalStackLayout>
</ContentPage>

<Grid RowSpacing="0" ColumnSpacing="0" Padding="20">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>

<!-- Display label -->
<Label x:Name="displayLabel" Text="0" FontSize="Large" HorizontalTextAlignment="End" VerticalOptions="Center" Grid.Row="0" Grid.ColumnSpan="4" />

<!-- Function buttons -->
<Grid Grid.Row="1" VerticalOptions="FillAndExpand">
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="*" />
<RowDefinition Height="*" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>

<!-- Row 1 -->
<Button Text="x^y" Background="LightSkyBlue" Clicked="OnComplexOperatorClicked" Grid.Row="0" Grid.Column="0" Margin="1" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand"/>
<Button Text="sqrt" Background="LightSkyBlue" Clicked="OnComplexOperatorClicked" Grid.Row="0" Grid.Column="1" Margin="1" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand"/>
<Button Text="lg" Background="LightSkyBlue" Clicked="OnComplexOperatorClicked" Grid.Row="0" Grid.Column="2" Margin="1" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand"/>
<Button Text="ln" Background="LightSkyBlue" Clicked="OnComplexOperatorClicked" Grid.Row="0" Grid.Column="3" Margin="1" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand"/>

<!-- Row 2 -->
<Button Text="sin" Background="LightSkyBlue" Clicked="OnComplexOperatorClicked" Grid.Row="1" Grid.Column="0" Margin="1" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand"/>
<Button Text="cos" Background="LightSkyBlue" Clicked="OnComplexOperatorClicked" Grid.Row="1" Grid.Column="1" Margin="1" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand"/>
<Button Text="tan" Background="LightSkyBlue" Clicked="OnComplexOperatorClicked" Grid.Row="1" Grid.Column="2" Margin="1" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand"/>
<Button Text="pi" Background="LightSkyBlue" Clicked="OnComplexNumberClicked" Grid.Row="1" Grid.Column="3" Margin="1" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand"/>

<!-- Row 3 -->
<Button Text="e" Background="LightSkyBlue" Clicked="OnComplexNumberClicked" Grid.Row="2" Grid.Column="0" Margin="1" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand"/>
<Button Text="!" Background="LightSkyBlue" Clicked="OnComplexOperatorClicked" Grid.Row="2" Grid.Column="1" Margin="1" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand"/>
<Button Text="0" Background="LightSkyBlue" Clicked="OnNumberClicked" Grid.Row="2" Grid.Column="2" Margin="1" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand"/>
<Button Text="=" Background="LightSkyBlue" Clicked="OnEqualClicked" Grid.Row="2" Grid.Column="3" Margin="1" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand"/>

<!-- Row 4 -->
<Button Text="AC" Background="LightSkyBlue" Clicked="OnClearClicked" Grid.Row="3" Grid.Column="0" Margin="1" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand"/>
<Button Text="DEL" Background="LightSkyBlue" Clicked="OnDeleteClicked" Grid.Row="3" Grid.Column="1" Margin="1" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand"/>
<Button Text="+" Background="LightSkyBlue" Clicked="OnOperatorClicked" Grid.Row="3" Grid.Column="2" Margin="1" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand"/>
<Button Text="-" Background="LightSkyBlue" Clicked="OnOperatorClicked" Grid.Row="3" Grid.Column="3" Margin="1" VerticalOptions="FillAndExpand" HorizontalOptions="FillAndExpand"/>
</Grid>
</Grid>
</ContentPage>
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