/// <summary>
        /// 动态获取IDataRecord里面的函数
        /// </summary>
        /// <param name="generator"></param>
        /// <param name="type"></param>
        /// <param name="isNullable"></param>
        /// <param name="pro"></param>
        /// <param name="dbTypeName"></param>
        /// <param name="fieldName"></param>
        private static void GeneratorCallMethod(ILGenerator generator, Type type, bool isNullable, PropertyInfo pro, string dbTypeName, string fieldName)
        {
            List<string> guidThrow = new List<string>() { "int32", "datetime", "decimal", "double", "byte", "string" };//数据库为GUID有错的实体类形
            List<string> intThrow = new List<string>() { "datetime", "byte" };//数据库为int有错的实体类形
            List<string> stringThrow = new List<string>() { "int32", "datetime", "decimal", "double", "byte", "guid" };//数据库为vachar有错的实体类形
            List<string> decimalThrow = new List<string>() { "datetime", "byte", "guid" };
            List<string> doubleThrow = new List<string>() { "datetime", "byte", "guid" };
            List<string> dateThrow = new List<string>() { "int32", "decimal", "double", "byte", "guid" };
            List<string> shortThrow = new List<string>() { "datetime", "guid" };
            MethodInfo method = null;
            var typeName =SqlSugarTool.ChangeDBTypeToCSharpType(dbTypeName);
            var objTypeName = type.Name.ToLower();
            var isEnum = type.IsEnum;
            if (isEnum)
            {
                typeName = "ENUMNAME";
            }
            else if (typeName.IsIn("byte[]", "other"))
            {
                generator.Emit(OpCodes.Call, getValueMethod);
                generator.Emit(OpCodes.Unbox_Any, pro.PropertyType);//找不到类型才执行拆箱(类型转换)
                return;
            }
            if (isNullable)
            {
                switch (typeName)
                {
                    case "int":
                        CheckType(intThrow, objTypeName, typeName, fieldName);
                        var isNotInt = objTypeName != "int32";
                        if (isNotInt)
                            method = getOtherNull.MakeGenericMethod(type);
                        else
                            method = getConvertInt32; break;
                    case "bool":
                        if (objTypeName != "bool" && objTypeName != "boolean")
                            method = getOtherNull.MakeGenericMethod(type);
                        else
                            method = getConvertBoolean; break;
                    case "string":
                        CheckType(stringThrow, objTypeName, typeName, fieldName);
                        method = getString; break;
                    case "dateTime":
                        CheckType(dateThrow, objTypeName, typeName, fieldName);
                        if (objTypeName != "datetime")
                            method = getOtherNull.MakeGenericMethod(type);
                        else
                            method = getConvertDateTime; break;
                    case "decimal":
                        CheckType(decimalThrow, objTypeName, typeName, fieldName);
                        var isNotDecimal = objTypeName != "decimal";
                        if (isNotDecimal)
                            method = getOtherNull.MakeGenericMethod(type);
                        else
                            method = getConvertDecimal; break;
                    case "double":
                        CheckType(doubleThrow, objTypeName, typeName, fieldName);
                        var isNotDouble = objTypeName != "double";
                        if (isNotDouble)
                            method = getOtherNull.MakeGenericMethod(type);
                        else
                            method = getConvertDouble; break;
                    case "guid":
                        CheckType(guidThrow, objTypeName, typeName, fieldName);
                        if (objTypeName != "guid")
                            method = getOtherNull.MakeGenericMethod(type);
                        else
                            method = getConvertGuid; break;
                    case "byte":
                        method = getConvertByte; break;
                    case "ENUMNAME":
                        method = getConvertToEnum_Nullable.MakeGenericMethod(type); break;
                    case "short":
                        CheckType(shortThrow, objTypeName, typeName, fieldName);
                        var isNotShort = objTypeName != "int16" && objTypeName != "short";
                        if (isNotShort)
                            method = getOtherNull.MakeGenericMethod(type);
                        else
                            method = getConvertInt16;
                        break;
                    default:
                        method = getOtherNull.MakeGenericMethod(type); break;
                }

                generator.Emit(OpCodes.Call, method);

            }
            else
            {
                switch (typeName)
                {
                    case "int":
                        CheckType(intThrow, objTypeName, typeName, fieldName);
                        var isNotInt = objTypeName != "int32";
                        if (isNotInt)
                            method = getOther.MakeGenericMethod(type);
                        else
                            method = getInt32; break;
                    case "bool":
                        if (objTypeName != "bool" && objTypeName != "boolean")
                            method = getOther.MakeGenericMethod(type);
                        else
                            method = getBoolean; break;
                    case "string":
                        CheckType(stringThrow, objTypeName, typeName, fieldName);
                        method = getString; break;
                    case "dateTime":
                        CheckType(dateThrow, objTypeName, typeName, fieldName);
                        if (objTypeName != "datetime")
                            method = getOther.MakeGenericMethod(type);
                        else
                            method = getDateTime; break;
                    case "decimal":
                        CheckType(decimalThrow, objTypeName, typeName, fieldName);
                        var isNotDecimal = objTypeName != "decimal";
                        if (isNotDecimal)
                            method = getOther.MakeGenericMethod(type);
                        else
                            method = getDecimal; break;
                    case "double":
                        CheckType(doubleThrow, objTypeName, typeName, fieldName);
                        var isNotDouble = objTypeName != "double";
                        if (isNotDouble)
                            method = getOther.MakeGenericMethod(type);
                        else
                            method = getDouble; break;
                    case "guid":
                        CheckType(guidThrow, objTypeName, typeName, fieldName);
                        if (objTypeName != "guid")
                            method = getOther.MakeGenericMethod(type);
                        else
                            method = getGuid; break;
                    case "byte":
                        method = getByte; break;
                    case "ENUMNAME":
                        method = getValueMethod; break;
                    case "short":
                        CheckType(shortThrow, objTypeName, typeName, fieldName);
                        var isNotShort = objTypeName != "int16" && objTypeName != "short";
                        if (isNotShort)
                            method = getOther.MakeGenericMethod(type);
                        else
                            method = getInt16;
                        break;
                    default: method = getOther.MakeGenericMethod(type); break; ;

                }

                generator.Emit(OpCodes.Call, method);

                if (method == getValueMethod)
                {
                    generator.Emit(OpCodes.Unbox_Any, pro.PropertyType);//找不到类型才执行拆箱(类型转换)
                }
            }


        }