用户登录

namespace 用户登录
{public partial class Form1 : Form{public Form1(){InitializeComponent();}bool b1, b2, b3, b4, b5, b6;private void button1_Click(object sender, EventArgs e){try{if (b1 && b2 && b3 && b4 && b5 && b6){using (SqlConnection conn = new SqlConnection(@"Data Source=.\sqlexpress;Initial Catalog=MyLogin;Integrated Security=True")){conn.Open();using (SqlCommand cmd = conn.CreateCommand()){cmd.CommandText = @"insert into T_userinformation(userName, userPWD, userPhone, userEmial, userBirthday)values('" + textBox1.Text + "','" + textBox2.Text + "','" + textBox5.Text + "','" + textBox4.Text + "','" + textBox6.Text + "')";cmd.ExecuteNonQuery();}}MessageBox.Show("注册成功");}else{MessageBox.Show("请完善信息");}}catch (Exception ex){MessageBox.Show(ex.Message);}}private void textBox1_Leave(object sender, EventArgs e){if (string.IsNullOrEmpty(textBox1.Text.Trim())){return;}b1 = Regex.IsMatch(textBox1.Text.Trim(), @"^\w{0,20}$");using (SqlConnection conn = new SqlConnection(@"Data Source=.\sqlexpress;Initial Catalog=MyLogin;Integrated Security=True")){conn.Open();using (SqlCommand cmd = conn.CreateCommand()){cmd.CommandText = "select count(userName) from T_userinformation where userName='" + textBox1.Text.Trim() + "'";int res = Convert.ToInt32(cmd.ExecuteScalar());if (b1){if (res == 0){labelUid.ForeColor = Color.Green;labelUid.Text = "恭喜，用户名可以使用！";}else{labelUid.ForeColor = Color.Red;labelUid.Text = "用户名已存在";}}else{labelUid.ForeColor = Color.Red;labelUid.Text = "用户名长度超过20";}}}}private void textBox3_Leave(object sender, EventArgs e){if (string.IsNullOrEmpty(textBox3.Text.Trim())){return;}b2 = Regex.IsMatch(textBox3.Text.Trim(), @"^\d{6}$");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\-_]+)+$");if (b4){labelmail.ForeColor = Color.Green;labelmail.Text = "恭喜，邮箱输入正确！";}else{labelmail.ForeColor = Color.Red;labelmail.Text = "输入错误，请检查邮箱格式";}}private void textBox5_Leave(object sender, EventArgs e){if (string.IsNullOrEmpty(textBox5.Text.Trim())){return;}b5 = Regex.IsMatch(textBox5.Text.Trim(), @"^\d{11}$");if (b5){labelphone.ForeColor = Color.Green;labelphone.Text = "恭喜，手机输入正确";}else{labelphone.ForeColor = Color.Red;labelphone.Text = "输入错误，请检查手机格式";}}private void textBox6_Leave(object sender, EventArgs e){if (string.IsNullOrEmpty(textBox6.Text.Trim())){return;}b6 = Regex.IsMatch(textBox6.Text.Trim(), @"^\d{4}\-((0[1-9])|(1[0-2]))-((0[1-9])|(1[0-9])|(2[0-9])|(3[0-1]))$");if (b6){labelbirth.ForeColor = Color.Green;labelbirth.Text = "恭喜，出生日期输入正确";}else{labelbirth.ForeColor = Color.Red;labelbirth.Text = "输入错误，请检查出生日期格式";}}}
}