过滤禁用词汇

1.过滤禁用词汇

namespace 过滤禁用词汇
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string str = textBox1.Text.Trim();
            if (string.IsNullOrEmpty(str))
            {
                return;
            }
            if (Regex.IsMatch(str, string.Join("|", listBan.ToArray())))
            {
                MessageBox.Show("含有非法词汇，禁止提交");
            }
            else if (Regex.IsMatch(str, string.Join("|", listMod.ToArray())))
            {
                MessageBox.Show("含有待审核词汇");
            }
            else
            {
                MessageBox.Show("提交成功");
            }
        }
        List<string> listMod = new List<string>();
        List<string> listBan = new List<string>();
        private void Form1_Load(object sender, EventArgs e)
        {
            string[] words = File.ReadAllLines("网站过滤词（部分）.txt", Encoding.Default);
            for (int i = 0; i < words.Length; i++)
            {
                string[] temp = words[i].Split(new char[] { '=' }, StringSplitOptions.RemoveEmptyEntries);
                if (temp[1] == "{MOD}")
                {
                    char[] chs = temp[0].ToCharArray();
                    StringBuilder sb = new StringBuilder();
                    for (int j = 0; j < chs.Length; j++)
                    {
                        sb.Append(chs[j] + ".{0,4}");
                    }
                    listMod.Add(sb.ToString());
                }
                else if (temp[1] == "{BANNED}")
                {
                    char[] chs = temp[0].ToCharArray();
                    temp[0] = string.Join(".{0,4}", chs);
                    listBan.Add(temp[0]);
                }
            }
        }
    }
}

2.提取邮箱信息

namespace 提取邮箱
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
        }

        private void button1_Click(object sender, EventArgs e)
        {
            // 1、下载HTML代码
            WebClient wc = new WebClient();
            wc.Encoding = Encoding.UTF8;
            string html = wc.DownloadString(textBox1.Text.Trim());
            // 2、正则提取
            string regex = @"([0-9a-zA-Z\._-]+)@([0-9a-zA-Z-_]+(\.[0-9a-zA-Z-_]+)+)";
            MatchCollection ms = Regex.Matches(html, regex);
            StringBuilder sb = new StringBuilder();
            foreach (Match m in ms)
            {
                if (m.Success)
                {
                    sb.AppendFormat("{0}\t\r\n", m.Value);
                }
            }
            textBox2.Text = sb.ToString();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            SaveFileDialog sfd = new SaveFileDialog();
            if (sfd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
            {
                sfd.OpenFile();
            }
        }
    }
}

3.用户登录信息验证

namespace 用户登录
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        bool b1, b2, b3, b4;
        private void button1_Click(object sender, EventArgs e)
        {
            if (b1 && b2 && b3 && b4)
            {
                MessageBox.Show("注册成功");
            }
            else
            {
                MessageBox.Show("请完善信息");
            }
          
        }

        private void textBox1_Leave(object sender, EventArgs e)
        {
            if(string.IsNullOrEmpty(textBox1.Text.Trim()))
            {
                return;
            }
            b1 = Regex.IsMatch(textBox1.Text.Trim(), @"^\w{5,10}$");
            if (b1)
            {
                labelUid.ForeColor = Color.Green;
                labelUid.Text = "恭喜，格式正确！";
            }
            else
            {
                labelUid.ForeColor = Color.Red;
                labelUid.Text = "输入错误，请检查用户名长度和格式";
            }
        }

        private void textBox3_Leave(object sender, EventArgs e)
        {
            if (string.IsNullOrEmpty(textBox3.Text.Trim()))
            {
                return;
            }
            b2 = Regex.IsMatch(textBox3.Text.Trim(), @"^\d{6}$");
            if (b2)
            {
                labelpas.ForeColor = Color.Green;
                labelpas.Text = "恭喜，密码输入正确！";
            }
            else
            {
                labelpas.ForeColor = Color.Red;
                labelpas.Text = "输入错误，请检查密码长度和格式";
            }
        }

        private void textBox2_Leave(object sender, EventArgs e)
        {
            if (string.IsNullOrEmpty(textBox2.Text.Trim()))
            {
                return;
            }
            b3=textBox2.Text.Trim()==textBox3.Text.Trim();
            if (b3)
            {
                labelpas2.ForeColor = Color.Green;
                labelpas2.Text = "恭喜，密码验证正确！";
            }
            else
            {
                labelpas2.ForeColor = Color.Red;
                labelpas2.Text = "输入错误，请检查密码";
            }
        }

        private void textBox4_Leave(object sender, EventArgs e)
        {
            if (string.IsNullOrEmpty(textBox4.Text.Trim()))
            {
                return;
            }
            b4=Regex.IsMatch(textBox4.Text.Trim(), @"^[0-9a-zA-Z\.-_]+@[0-9a-zA-Z\-_]+(\.[0-9a-zA-Z\-_]+)+$");
            if (b4)
            {
                labelmail.ForeColor = Color.Green;
                labelmail.Text = "恭喜，邮箱输入正确！";
            }
            else
            {
                labelmail.ForeColor = Color.Red;
                labelmail.Text = "输入错误，请检查邮箱格式";
            }
        }

        private void textBox4_TextChanged(object sender, EventArgs e)
        {

        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }
    }
}