初始化

DB_Server/MYSQL_Helper.cs

@@ -0,0 +1,64 @@
+using MySql.Data.MySqlClient;
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Data.SqlClient;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DB_Server
+{
+    /// <summary>
+    /// internal 本项目使用
+    /// </summary>
+    public class MYSQL_Helper 
+    { 
+        public static DataTable GetDatatable(string con, string sql, params MySqlParameter[] par)
+        {
+            try
+            {
+                using (MySqlConnection conn = new MySqlConnection(con))
+                {
+                    MySqlCommand cmd = new MySqlCommand(sql, conn);
+                    using (MySqlDataAdapter adapter = new MySqlDataAdapter(sql, con))
+                    {
+                        if (par != null && par.Length > 0)
+                        {
+                            adapter.SelectCommand.Parameters.AddRange(par);
+                        }
+                        DataTable dt = new DataTable();
+                        adapter.Fill(dt);
+                        adapter.SelectCommand.Parameters.Clear();
+                        return dt;
+                    }
+                }
+            }
+            catch (Exception ex)
+            { 
+                throw new Exception("mysql GetDatatable errorr  " + ex.Message); 
+            }
+        }
+
+        internal static int ExecuteSql(string con, string sql)
+        {
+            using (MySqlConnection connection = new MySqlConnection(con))
+            {
+                using (MySqlCommand cmd = new MySqlCommand(sql, connection))
+                {
+                    try
+                    {
+                        connection.Open();
+                        int rows = cmd.ExecuteNonQuery();
+                        return rows;
+                    }
+                    catch (MySqlException e)
+                    {
+                        connection.Close();
+                        throw e;
+                    }
+                }
+            }
+        }
+    }
+}