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   源码介绍

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Mid_Autumn_Festilval
{
    public partial class Form1 : Form
    {
        public ComboBox cbxX = new ComboBox();
        public TextBox DataName=new TextBox();
        public TextBox GetData=new TextBox();
        public Button OK = new Button();

        Dictionary<string, string> sqlp = new Dictionary<string, string>();
        List<string> text = new List<string>();
        public Form1()
        {
            InitializeComponent();

            //初始化
            this.Opacity = 0.5;//初始化皮肤透明度为百分之50
            this.Text = "sql语句生成器";
            //创建一个控件
            Label lal = new Label();
            //位置
            lal.Location = new Point(100, 90);
            lal.Size = new Size(77,22);
            lal.Text = "选择语句：";
            this.Controls.Add(lal);
            //创建下拉列表框
            cbxX.Location = new Point(200,90);  
            this.Controls.Add(cbxX);

            //输入表名
            DataName.Location = new Point(200, 150);

            //获取sql语句
            GetData.Location = new Point(100, 200);
            GetData.Size = new Size(444,199);
            OK.Location = new Point(200, 255);
            OK.MouseClick  = ok_Click;
            OK.Text = "确定生成";
            this.Controls.Add(OK);
            this.Controls.Add(DataName);
            this.Controls.Add(GetData);
            text.Add("添加");
            text.Add("修改");
            text.Add("删除");
            text.Add("查找");

            sqlp.Add("添加", "INSERT ");
            sqlp.Add("修改", "UPDATE");
            sqlp.Add("删除", "DELECTE ");
            sqlp.Add("查找", "SELECTE ");
            cbxX.DataSource = text;
           
        }

        private void Form1_Load(object sender, EventArgs e)
        {
    
           
            //点击数据

        }
        private void ok_Click(object sender, EventArgs e)
        {
            if(DataName.Text.Trim()!="")
            {
                foreach (var item in text)
                {
                    //MessageBox.Show(item);
                    if (cbxX.Text == item)
                    {
                        foreach (var item2 in sqlp)
                        {
                            if (item == item2.Key)
                            {
                                //
                                if(item2.Key=="添加")
                                {
                                    GetData.Text = item2.Value   "INTO VALUES(列名) " DataName.Text   "  VALUES(值)";
                                }
                                if (item2.Key == "修改")
                                {
                                    GetData.Text = item2.Value "  "  DataName.Text   "   SET 改的字段=‘’ WHERE ID=行数id";
                                }
                                if (item2.Key == "删除")
                                {
                                    GetData.Text = item2.Value   " * FROM  " DataName.Text   "  WHERE ID = 行数id";
                                }
                                if (item2.Key == "查找")
                                {
                                    GetData.Text = item2.Value   "* FROM    "   DataName.Text;
                                }
                            }
                        }

                    }
                }
            }
            else
            {
                MessageBox.Show("表名不能为空");
            }
           
          
          
        }
    }
}