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  • 源代码(C#)

    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Configuration;
    using System.Data;
    using System.Data.OleDb;
    using System.Drawing;
    using System.Linq;
    using System.Text;
    using System.Windows.Forms;

    namespace WindowsFormsApplication2
    {

        /// <summary>
        /// condb 的摘要说明
        /// </summary>
        ///
     
       
        public partial class Form1 : Form
        {
            public DataTable table=new DataTable();
            public string str = "";
            public int flag = 0;
            public int b5_flag = 1;
            public int b5_show = 0;
            public string last_str="a";
            public Form1()
            {
                InitializeComponent();
            }

            private void Form1_Load(object sender, EventArgs e)
            {
              

            }

            private void textBox1_TextChanged(object sender, EventArgs e)
            {
               
            }

            private void button1_Click(object sender, EventArgs e)
            {
                String conectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:/Database31.accdb";

                OleDbConnection con = new OleDbConnection(conectionString);//"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:/Database31.accdb");
                string strcmd="select * from words";
                DataSet myDataset=new DataSet();
                con.Open();
                OleDbDataAdapter myConmand = new OleDbDataAdapter(strcmd, conectionString);//"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:/Database31.accdb");
                myConmand.Fill(myDataset,"words");
                //DataTable table = new DataTable();
                table = myDataset.Tables["words"];
                //table.Rows.Count.ToString();
                //DataRow dr = myDataset.Tables["words"].NewRow();
                //dr["En"] = "hello";
                //dr["Ch"] = "测试ai";
                //myDataset.Tables["words"].Rows.Add(dr);
                //DataTable tbl = new DataTable("newTables");
                //myDataset.Tables.Add(tbl);
                OleDbCommandBuilder cb = new OleDbCommandBuilder(myConmand);//这一句很伤人!!!
               
                myConmand.Update(myDataset,"words");

                ///////////MessageBox.Show("success");
                string flag = textBox2.Text;
                //int len = Convert.ToInt16(flag);
                if (flag == "")
                {
                    MessageBox.Show("please input.....");
                    flag = textBox2.Text;
                   // len = Convert.ToInt16(flag);
                }
                //textBox1.Paste();
                int sum = Int32.Parse(table.Rows.Count.ToString());
                str = "";
                for (int i = 0; i < sum; i++)
                    if (table.Rows[i]["En"].ToString()==flag)
                        str += table.Rows[i]["En"].ToString() + "  " + table.Rows[i]["Ch"].ToString() + '\r' + '\n';
                //textBox1.Text = str;
                //textBox1.Clear();
                if (str == "")
                    //textBox1.Text = table.Rows.Count.ToString();
                    textBox1.Text = "对不起,没有您找的单词";
                else
                    textBox1.Text = str;
          
                con.Close();
     
            }

       /// <summary>
       ///
       /// </summary>
       /// <param name="sender"></param>
       /// <param name="e"></param>
           //***************************************下一个(背单词)*********************************/
            private void button3_Click(object sender, EventArgs e)
            {
                String conectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:/Database31.accdb";
                OleDbConnection con = new OleDbConnection(conectionString);
                con.Open();
               // string s = "update backup set tags=" + 1;
               // OleDbCommand c = new OleDbCommand(s, con);
               // c.ExecuteNonQuery();

                while (comboBox1.Text.ToString() == "请选择...")
                {
                    MessageBox.Show("请选择...");
                    comboBox1.Text="a";
                }
                if (comboBox1.Text.ToString() == "go on")
                {

                    comboBox1.Text = "selected";
                    string cmd = "select * from jilu";
                    DataSet myDaset = new DataSet();
                  
                    OleDbDataAdapter myCnd = new OleDbDataAdapter(cmd, conectionString);//"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:/Database31.accdb");
                    myCnd.Fill(myDaset, "jilu");
                    //DataTable table = new DataTable();
                    table = myDaset.Tables["jilu"];
                    flag = Int32.Parse(table.Rows[0]["orange"].ToString());

                }
                if((comboBox1.Text.ToString() == "restart"))
                {
                    comboBox1.Text = "selected";
                    flag=0;
                }

                string strcmd = "select * from backup";
                DataSet myDataset = new DataSet();
                OleDbDataAdapter myConmand = new OleDbDataAdapter(strcmd, conectionString);//
               
                myConmand.Fill(myDataset, "backup");
       
                table = myDataset.Tables["backup"];
                int f=Int32.Parse(table.Rows.Count.ToString());

                OleDbCommandBuilder cb = new OleDbCommandBuilder(myConmand);//这一句很伤人!!!

                myConmand.Update(myDataset, "backup");
                if (comboBox1.Text != "selected")
                {
                    int i;
                    for (i = 0; i < f-1; i++)
                    {
                        str=table.Rows[i]["En"].ToString();
                        if (comboBox1.Text.ToString() == str[0].ToString())
                            break;
                    }
                    if (i < f)
                        flag = i;
                    else
                        flag = 0;
                    comboBox1.Text = "selected";
                }
         
                str = "";
                if (flag >=f)
                    flag = 0;
                int flag_sub = 0;
         //////////**************************删除********************************************/////////////////////////////////////      
                if (flag >= 1 && Int32.Parse(table.Rows[flag - 1]["tags"].ToString())>=1)
                {
                    string update = "update backup set tags=" + (Int32.Parse(table.Rows[flag - 1]["tags"].ToString())-1)+" where En='"+last_str+"'";
                    OleDbCommand update_cmd = new OleDbCommand(update, con);
                    update_cmd.ExecuteNonQuery();
                }
                if (flag >= 1 && table.Rows[flag - 1]["tags"].Equals(0))
                {
                    string del = "delete from backup where En='" + table.Rows[flag - 1]["En"].ToString() + "'";
                    OleDbCommand del_command = new OleDbCommand(del, con);
                    del_command.ExecuteNonQuery();
                    //flag--;
                    flag_sub = 1;
                }
         //////////**************************删除********************************************///////////////////////////////////// 
                str += table.Rows[flag]["En"].ToString();
                if (flag_sub == 1)
                    flag--;
                flag++;
                last_str = str;
                bdc.Text = str;
                con.Close();
            }

            private void bdc_TextChanged(object sender, EventArgs e)
            {

            }

            private void review_TextChanged(object sender, EventArgs e)
            {

            }

          
            private void button4_Click(object sender, EventArgs e)
            {

            }
           // ********************************************忘了*********************************************************************
            private void button5_Click(object sender, EventArgs e)
            {
                String conectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:/Database31.accdb";

                OleDbConnection con = new OleDbConnection(conectionString);//"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:/Database31.accdb");
                string strcmd_forget = "select *from backup";//forget

                string strcmd = "select * from review";
                DataSet myDataset = new DataSet();
                con.Open();

              

               DataSet myDataset_forget = new DataSet();
                OleDbDataAdapter myConmand_forget = new OleDbDataAdapter(strcmd_forget, conectionString);
                myConmand_forget.Fill(myDataset_forget, "backup");
                int sum = Int32.Parse(myDataset_forget.Tables["backup"].Rows.Count.ToString()) ;
                string flag = "";
                string str="";
                flag += bdc.Text.ToString();
                for (int i = 0; i < sum; i++)
                    if (myDataset_forget.Tables["backup"].Rows[i]["En"].ToString() == flag)
                    {
                        str += myDataset_forget.Tables["backup"].Rows[i]["En"].ToString() + "  " + myDataset_forget.Tables["backup"].Rows[i]["Ch"].ToString() + '\r' + '\n';
                         ///////////////////////////////////改变tags
                        string tags = bdc.Text.ToString();
                        int test=2;
                        //(Int32.Parse(myDataset_forget.Tables["words"].Rows[i]["tags"].ToString())+1)
                        string update = "update backup set tags=" + (Int32.Parse(myDataset_forget.Tables["backup"].Rows[i]["tags"].ToString()) + 2) + " where En='" + tags + "'";
                        OleDbCommand add = new OleDbCommand(update, con);
                        add.ExecuteNonQuery();
                        ///////////////////////////////////改变tags
                        bdc.Text = str;
                        break;
                    }

                OleDbDataAdapter myConmand = new OleDbDataAdapter(strcmd, conectionString);//在review中显示刚才不记得的单词;
                myConmand.Fill(myDataset, "review");
                DataTable table = new DataTable();
                table = myDataset.Tables["review"];
                review.Text = "还认识吗?\n" + table.Rows[0]["En"].ToString(); //在review中显示刚才不记得的单词;
                strcmd = "";
                strcmd += "update review set En='" + bdc.Text + "'";
                OleDbCommand command = new OleDbCommand(strcmd, con);
                command.ExecuteNonQuery();          
                con.Close();

            }

            private void button2_Click(object sender, EventArgs e)
            {

            }

            private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
            {

            }
     

            private void Form1_FormClosing_1(object sender, FormClosingEventArgs e)
            {
              
                String conectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:/Database31.accdb";
                OleDbConnection con = new OleDbConnection(conectionString);
                con.Open();
                string http = flag.ToString();
                string  before="5";
                string cmd = "update jilu set orange='"+ http+"'where htt='"+before+"'";
                OleDbCommand mycnd = new OleDbCommand(cmd,con);//, conectionString);
                mycnd.ExecuteNonQuery();
                con.Close();
                MessageBox.Show("您确定要关闭窗口", "关闭窗口", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
               
            }

            private void timer1_Tick(object sender, EventArgs e)
            {
                MessageBox.Show("");
            }
    //********************************************************上一个**********************************************************
            private void button2_Click_1(object sender, EventArgs e)
           
            {
                String conectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:/Database31.accdb";
                OleDbConnection con = new OleDbConnection(conectionString);
                con.Open();
                //string http = flag.ToString();
                //string before = "5";
                string cmd = "select * from backup";
                DataSet data=new DataSet();
                OleDbDataAdapter mycnd = new OleDbDataAdapter(cmd, conectionString);//, conectionString);
                mycnd.Fill(data, "backup");
                flag-=2;
                bdc.Text = data.Tables["backup"].Rows[flag]["En"].ToString();
                con.Close();

            }
            }
         

    }
       

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  • 原文地址:https://www.cnblogs.com/orangeblog/p/2497908.html
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