diff --git a/SqlSugar/Realization/MySql/Core/SqlBuilder/MySqlBuilder.cs b/SqlSugar/Realization/MySql/Core/SqlBuilder/MySqlBuilder.cs
index ec16a9e66..a78025bbf 100644
--- a/SqlSugar/Realization/MySql/Core/SqlBuilder/MySqlBuilder.cs
+++ b/SqlSugar/Realization/MySql/Core/SqlBuilder/MySqlBuilder.cs
@@ -6,7 +6,6 @@ namespace SqlSugar
 {
     public class MySqlBuilder : SqlBuilderProvider
     {
-        public override string SqlParameterKeyWord { get { return "@"; } }
 
         public override string GetTranslationTableName(string name)
         {
diff --git a/SqlSugar/Realization/MySql/Core/SqlBuilder/MySqlQueryBuilder.cs b/SqlSugar/Realization/MySql/Core/SqlBuilder/MySqlQueryBuilder.cs
index 90a7a2b49..5debe10b6 100644
--- a/SqlSugar/Realization/MySql/Core/SqlBuilder/MySqlQueryBuilder.cs
+++ b/SqlSugar/Realization/MySql/Core/SqlBuilder/MySqlQueryBuilder.cs
@@ -1,37 +1,17 @@
-using System.Collections.Generic;
-using System.Linq;
-using System.Linq.Expressions;
+using System.Linq;
 using System.Text;
-using System.Text.RegularExpressions;
 
 namespace SqlSugar
 {
     public partial class MySqlQueryBuilder : QueryBuilder
     {
         #region Sql Template
-        public override string SqlTemplate
-        {
-            get
-            {
-                return "SELECT {0} FROM {1}{2}{3}{4} ";
-            }
-        }
-        public override string JoinTemplate
-        {
-            get
-            {
-                return "{0}JOIN {1}{2}ON {3} ";
-            }
-        }
         public override string PageTempalte
         {
             get
             {
                 /*
-                 @"WITH PageTable AS(
-                          {0}
-                  )
-                  SELECT * FROM (SELECT *,ROW_NUMBER() OVER({1}) AS RowIndex FROM PageTable ) T WHERE RowIndex BETWEEN {2} AND {3}"
+                 SELECT * FROM TABLE WHERE CONDITION ORDER BY ID DESC LIMIT 0,10
                  */
                 var template = "SELECT {0} FROM {1} {2} {3} {4} LIMIT {5},{6}";
                 return template;
@@ -44,78 +24,11 @@ namespace SqlSugar
                 return "ORDER BY NOW() ";
             }
         }
-        public override string OrderByTemplate
-        {
-            get
-            {
-                return "ORDER BY ";
-            }
-        }
-        public override string GroupByTemplate
-        {
-            get
-            {
-                return "GROUP BY ";
-            }
-        }
 
-        public override string MaxTemplate
-        {
-            get
-            {
-                return "MAX({0})";
-            }
-        }
-        public override string MinTemplate
-        {
-            get
-            {
-                return "MIN({0})";
-            }
-        }
-        public override string SumTemplate
-        {
-            get
-            {
-                return "SUM({0})";
-            }
-        }
-        public override string AvgTemplate
-        {
-            get
-            {
-                return "AVG({0})";
-            }
-        }
-        public override string InTemplate
-        {
-            get
-            {
-                return "{0} IN ({1}) ";
-            }
-        }
         #endregion
 
         #region Common Methods
-        public override bool IsSingle()
-        {
-            var isSingle = Builder.QueryBuilder.JoinQueryInfos.IsNullOrEmpty();
-            return isSingle;
-        }
-        public override ExpressionResult GetExpressionValue(Expression expression, ResolveExpressType resolveType)
-        {
-            ILambdaExpressions resolveExpress = this.LambdaExpressions;
-            this.LambdaExpressions.Clear();
-            resolveExpress.JoinQueryInfos = Builder.QueryBuilder.JoinQueryInfos;
-            resolveExpress.MappingColumns = Context.MappingColumns;
-            resolveExpress.MappingTables = Context.MappingTables;
-            resolveExpress.IgnoreComumnList = Context.IgnoreColumns;
-            resolveExpress.Resolve(expression, resolveType);
-            this.Parameters = new List<SugarParameter>();
-            this.Parameters.AddRange(resolveExpress.Parameters);
-            var reval = resolveExpress.Result;
-            return reval;
-        }
+
         public override string ToSqlString()
         {
             sql = new StringBuilder();
@@ -142,32 +55,6 @@ namespace SqlSugar
             }
 
         }
-        public override string ToJoinString(JoinQueryInfo joinInfo)
-        {
-            return string.Format(
-                this.JoinTemplate,
-                joinInfo.JoinType.ToString() + PubConst.Space,
-                joinInfo.TableName + PubConst.Space,
-                joinInfo.ShortName + PubConst.Space + joinInfo.TableWithString,
-                joinInfo.JoinWhere);
-        }
-        public override void Clear()
-        {
-            this.Skip = 0;
-            this.Take = 0;
-            this.sql = null;
-            this.WhereIndex = 0;
-            this.Parameters = null;
-            this.GroupByValue = null;
-            this.WhereInfos = null;
-            this._TableNameString = null;
-            this.JoinQueryInfos = null;
-        }
-        public override bool IsComplexModel(string sql)
-        {
-            return Regex.IsMatch(sql, @"AS \[\w+\.\w+\]");
-        }
-
         
         #endregion
 
@@ -193,90 +80,7 @@ namespace SqlSugar
                 return reval;
             }
         }
-        public override string GetSelectValueByExpression()
-        {
-            var expression = this.SelectValue as Expression;
-            var reval = GetExpressionValue(expression, this.SelectType).GetResultString();
-            this.SelectCacheKey = reval;
-            return reval;
-        }
-        public override string GetSelectValueByString()
-        {
-            string reval;
-            if (this.SelectValue.IsNullOrEmpty())
-            {
-                string pre = null;
-                if (this.JoinQueryInfos.IsValuable() && this.JoinQueryInfos.Any(it => TableShortName.IsValuable()))
-                {
-                    pre = Builder.GetTranslationColumnName(TableShortName) + ".";
-                }
-                reval = string.Join(",", this.Context.EntityProvider.GetEntityInfo(this.EntityType).Columns.Where(it => !it.IsIgnore).Select(it => pre + Builder.GetTranslationColumnName(it.EnitytName, it.PropertyName)));
-            }
-            else
-            {
-                reval = this.SelectValue.ObjToString();
-                this.SelectCacheKey = reval;
-            }
 
-            return reval;
-        }
-        public override string GetWhereValueString
-        {
-            get
-            {
-                if (this.WhereInfos == null) return null;
-                else
-                {
-                    return string.Join(PubConst.Space, this.WhereInfos);
-                }
-            }
-        }
-        public override string GetJoinValueString
-        {
-            get
-            {
-                if (this.JoinQueryInfos.IsNullOrEmpty()) return null;
-                else
-                {
-                    return string.Join(PubConst.Space, this.JoinQueryInfos.Select(it => this.ToJoinString(it)));
-                }
-            }
-        }
-        public override string GetTableNameString
-        {
-            get
-            {
-                var result = Builder.GetTranslationTableName(EntityName);
-                result += PubConst.Space;
-                if (this.TableWithString.IsValuable())
-                {
-                    result += TableWithString + PubConst.Space;
-                }
-                if (this.TableShortName.IsValuable())
-                {
-                    result += (TableShortName + PubConst.Space);
-                }
-                if (!this.IsSingle())
-                {
-                    result += GetJoinValueString + PubConst.Space;
-                }
-                return result;
-            }
-        }
-        public override string GetOrderByString
-        {
-            get
-            {
-                return this.OrderByValue;
-            }
-        }
-        public override string GetGroupByString
-        {
-            get
-            {
-                return this.GroupByValue;
-            }
-        }
         #endregion
     }
 }