我正在嘗試實現(xiàn)一種快速排序算法來對浮點數(shù)組進行排序。每當(dāng)我引用數(shù)組中的索引時，我都會收到此錯誤：無法將類型“float”隱式轉(zhuǎn)換為“int”。存在顯式轉(zhuǎn)換（您是否缺少轉(zhuǎn)換）？這是算法：class Quicksort{ public static void Sort(float[] numbers, int left, int right) { float i = Convert.ToSingle(left); float j = Convert.ToSingle(right); var pivot = numbers[(left + right) / 2]; while (i <= j) { while (numbers[i] < pivot) //ERROR HERE i++; while (numbers[j] > pivot) //ERROR HERE j--; if (i <= j) { float tmp = numbers[i]; //ERROR HERE numbers[i] = numbers[j]; //ERROR HERE numbers[j] = tmp; //ERROR HERE i++; j--; } } if (left < j) Sort(numbers, left, j); if (i < right) Sort(numbers, i, right); }}numbers[i]每當(dāng)我使用或時出現(xiàn)轉(zhuǎn)換錯誤numbers[j]我將如何解決這個問題？
1 回答
嚕嚕噠
TA貢獻1784條經(jīng)驗 獲得超7個贊
我剛剛為你的場景寫了一個例子，看看我認為它會有所幫助
Xaml
<StackPanel Grid.Row="0" Grid.Column="1">
<ItemsControl ItemsSource="{Binding Path=CBItems}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate>
<CheckBox IsChecked="{Binding Path=CheckBoxChecked, Mode=TwoWay}" Command="{Binding Path=DataContext.CheckBoxChanged, RelativeSource={RelativeSource AncestorType=ItemsControl}}"/>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
<Label Content="{Binding LabelContent}"></Label>
</StackPanel>
Ctro（設(shè)置數(shù)據(jù)上下文）
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
MainWindowVM DC = new MainWindowVM();
DC.Init();
this.DataContext = DC;
}
}
繼電器命令和模型類
class MainWindowVM : INotifyPropertyChanged
{
public MainWindowVM()
{
CheckBoxChanged = new RelayCommand(CheckBoxChangedMethod);
}
private string labelContent="Not Yet Checked";
public string LabelContent
{
get { return labelContent; }
set { labelContent = value; OnPropertyChanged(new PropertyChangedEventArgs("LabelContent")); }
}
public void Init()
{
try
{
CBItems = new ObservableCollection<ex>();
for (int i = 985; i <= 1030; i++)
CBItems.Add(new ex { CheckBoxChecked = true });
}
catch (Exception ex)
{
}
}
public ICommand CheckBoxChanged { get; set; }
private ObservableCollection<ex> _CBItems;
public ObservableCollection<ex> CBItems
{
get { return _CBItems; }
set
{
_CBItems = value;
OnPropertyChanged(new PropertyChangedEventArgs("CBItems"));
}
}
public event PropertyChangedEventHandler PropertyChanged;
public void OnPropertyChanged(PropertyChangedEventArgs e)
{
if (PropertyChanged != null)
{
PropertyChanged(this, e);
}
}
public void CheckBoxChangedMethod(object obj)
{
LabelContent = "You have Clicked the checkbox";
}
}
public class RelayCommand : ICommand
{
private Action<object> execute;
private Func<object, bool> canExecute;
public event EventHandler CanExecuteChanged
{
add
{
CommandManager.RequerySuggested += value;
}
remove { CommandManager.RequerySuggested -= value; }
}
public RelayCommand(Action<object> execute, Func<object, bool> canExecute = null)
{
this.execute = execute;
this.canExecute = canExecute;
}
public bool CanExecute(object parameter)
{
//return this.canExecute == null || this.canExecute(parameter);
return true;
}
public void Execute(object parameter)
{
this.execute(parameter);
}
public RelayCommand(Action<object> execute)
{
this.execute = execute;
}
}
public class ex
{
private bool _checkBoxChecked;
public bool CheckBoxChecked
{
get { return _checkBoxChecked; }
set { _checkBoxChecked = value; }
}
}
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