13518219792
If Trim(ypsw.Text) = "" Then
创新互联秉承实现全网价值营销的理念，以专业定制企业官网，成都做网站、成都网站制作，微信平台小程序开发，网页设计制作，手机网站开发，成都营销网站建设帮助传统企业实现“互联网+”转型升级专业定制企业官网,公司注重人才、技术和管理，汇聚了一批优秀的互联网技术人才,对客户都以感恩的心态奉献自己的专业和所长。
MsgBox("原密码不能为空！", MsgBoxStyle.Critical)
ElseIf Trim(xpsw.Text) = "" Then
MsgBox("新密码不能为空！", MsgBoxStyle.Critical)
ElseIf Trim(qpsw.Text) Trim(xpsw.Text) Then
MsgBox("确认密码与新密码不一致！", MsgBoxStyle.Critical)
Else
Dim mycon As New OleDbConnection
mycon.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" Application.StartupPath "\data\Datas.mdb"
mycon.Open()
Dim mycmd As New OleDbCommand
mycmd.CommandText = "select * from 管理员 where 用户名='admin' and 密码='" ypsw.Text " '"
mycmd.Connection = mycon
Dim myada As New OleDbDataAdapter
myada.SelectCommand = mycmd
Dim myda As New DataSet
myada.Fill(myda, "yh")
If myda.Tables("yh").Rows.Count 1 Then
MsgBox("您输入的原密码不正确，请重新输入！", MsgBoxStyle.Critical)
ypsw.Focus()
Else
mycmd.CommandText = "update 管理员 set 密码='" Trim(ypsw.Text) " '"
mycmd.ExecuteNonQuery()
MsgBox("密码修改成功！", MsgBoxStyle.Information)
End If
End If
汗等等 我最近也在做 我贴代码吧，这些什么原始密码和新密码不是要用户输入嘛，我连接的是SQLstring userID = textBox1.Text; //用户名
string passWorld = textBox2.Text; //密码
string newpwd = textBox3.Text; //新密码
Login login1=new Login(); //登陆窗口实例
if (mima() == 1)
{
SqlConnection mySqlconnection = new SqlConnection(login1.connectionString);
SqlCommand myCommand = new SqlCommand("update Table1 set 密码='" + newpwd.Trim() + "'where 账号='" + userID.Trim() + "'and 密码='" + passWorld.Trim() + "'", mySqlconnection);
mySqlconnection.Open();
int command = myCommand.ExecuteNonQuery();
if (command = 1)
{
if (MessageBox.Show("密码修改成功，现在马上去登陆？", "确定", MessageBoxButtons.OKCancel, MessageBoxIcon.Question) == DialogResult.OK)
{
mySqlconnection.Close();
this.Close();
login1.Show();
}
}
else
{
mySqlconnection.Close();
MessageBox.Show("用户不存在或密码错误");
}
}
else
{
MessageBox.Show("新密码不能与旧密码相同!!");
textBox2.Text = "";
textBox3.Text = "";
textBox2.Focus();
}
以下这里有错误：
Dim mysqlstr As String = "SELECT * FROM 登录表 WHERE users='" username " 'AND password='" userpassword " '"
修改为：
Dim mysqlstr As String = "SELECT * FROM 登录表 WHERE users='" username "' AND password='" userpassword "'"
Dim sql As String = "update DLYZ set 登陆密码='" + TextBox_xgmm_xdmm.Text.Trim() + "'where 工作证号 ='" + Form1.TextBox1.Text.Trim() + "'"
where前面需要加上空格
