using System;
using System.Windows;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Test
{
class Test2:Application
{
[STAThread()]
static void Main() {
Test2 t2 = new Test2();
t2.MainWindow = new Class1();
t2.MainWindow.ShowDialog();
}
}
}

using System.Windows;
using System.Windows.Controls;
using System.Windows.Markup;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Test
{
class Class1:Window
{
private static int a = 0;
private Button bt;
public Class1()
{
t();
}
private void t(){
this.Width = 200;
this.Height=200;
this.Top = this.Left = 100;
this.Title = "kaitou";
DockPanel dp = new DockPanel();
bt = new Button();
bt.Content = "click me";
bt.Margin = new Thickness(30);
bt.Click+=doclick;
IAddChild con = dp;
con.AddChild(bt);
con = this;
con.AddChild(dp);
}
private void doclick(object sender,RoutedEventArgs e){
bt.Content = "thanks";
a += 1;
if(a%2==0){
bt.Content = "click me";
}
}
}
}

String a = "qwe{1,2,3}weqwe";
int z= a.indexOf("{");
int x= a.indexOf("}");
String b =a.substring(z+1,x);
System.out.println("z"+z);
System.out.println("x"+x);
System.out.println(b);

String regEx = ".+/(.+)$";String str = "c:/dir1/dir2/name.txt";Pattern p = Pattern.compile(regEx);Matcher m = p.matcher(str);if (!m.find()){ System.out.println("文件路径格式错误!"); return;}System.out.println(m.group(1));