winform验证码入门级示例

【实例截图】

【核心代码】

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;

using System.Windows.Forms;
using DevExpress.XtraEditors;

namespace Kuade.验证码
{
    /// <summary>
    /// 
    /// </summary>
    public partial class FrmMainForm : Form
    {
        YLyanzheng yz = new YLyanzheng();   //验证类
        /// <summary>
        /// 构造函数
        /// </summary>
        public FrmMainForm()
        {
            InitializeComponent();
        }

        private void pictureBox1_Click(object sender, EventArgs e)
        {
            pictureBox1.Image = yz.getImg(true, true, false);
            textBox1.Clear();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (textBox1.Text != yz.getStr())
            {
                MessageBox.Show("你输入的验证码不正确！", "提示");
                pictureBox1_Click(null, null);
                return;
            }
            if (textBox1.Text == yz.getStr())
            {
                MessageBox.Show("你输入的验证正确！", "提示");
                pictureBox1_Click(null, null);
                return;
            }
        }

        private void FrmMainForm_Load(object sender, EventArgs e)
        {
            pictureBox1_Click(null, null);
        }
    }
}