C#语言学习--基础部分(五) －－复合运算符,循环语句

1.复合运算符的使用:*=,/=,%=,+=,-=

2.while语句的编写

a.WPF Demo:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using Microsoft.Win32;
using System.IO;

namespace WhileStatement
{
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window
{
private OpenFileDialog openFileDialog = null;
public MainWindow()
{
InitializeComponent();
openFileDialog = new OpenFileDialog();
openFileDialog.FileOk += openFileDialogFileOk;
}

private void openFile_Click(object sender, RoutedEventArgs e)
{
openFileDialog.ShowDialog();
}
private void openFileDialogFileOk(object sender,System.ComponentModel.CancelEventArgs e)
{
string fullPathName = openFileDialog.FileName;
FileInfo src = new FileInfo(fullPathName);
fileName.Text = src.Name;
source.Text = "";
TextReader reader = src.OpenText();
string line = reader.ReadLine();
while(line!=null)
{
source.Text+=line+'\n';
line=reader.ReadLine();
}
reader.Close();
}
}
}

3.continue,break语句的使用

a. Console Demo:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace WhileDemo
{
class Program
{
static void Main(string[] args)
{
int i = 0;
while (true)
{
i++;
Console.WriteLine("i={0}",i);
if (i < 10)
continue;
else
break;

}

}
}
}

4.for语句的编写

5.do...while语句的编写

a.Console Demo

1.
int i = 0;
for(;i<10;i++)
Console.WriteLine("i={0}",i);
2.
for(int i=0;i<10;i++)
Console.WriteLine("i={0}",i);
3.
int i=0;
do {
Console.WriteLine("i={0}",i);
i++;
} while (i < 10);

b.WPF Demo

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace DoWhileStatement
{
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}

private void showSteps_Click(object sender, RoutedEventArgs e)
{
steps.Text = "";
int a = int.Parse(number.Text);
string current="";
do
{
current = Convert.ToString(a % 8)+current;
steps.Text+=current+"\n";
a=a/8;
}while(a!=0);
}
}
}