帮我看看这段代码,急
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Text.RegularExpressions;
namespace currency
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
this.textBox2.ReadOnly = true;
this.button2.Enabled = false;
this.TopMost = true;
}
private void radioButton1_CheckedChanged(object sender, EventArgs e)
{
if (radioButton1.Checked)
{
this.button2.Enabled = true;
this.label2.Text = "美元 ";
}
}
private void radioButton2_CheckedChanged(object sender, EventArgs e)
{
if (radioButton2.Checked)
{
this.button2.Enabled = true;
this.label2.Text = "英镑 ";
}
}
private void radioButton3_CheckedChanged(object sender, EventArgs e)