public PropertyDefinition BuildCollectionProperty(CollectionProperty property, TypeDefinition type)
        {
            //如果是一对多关系,即关联属性是单值属性时,直接在上面加上关联关系
            //如果是多对多,则不需要处理,因为所属类型会执行这个动作


            var mod          = type.Module;
            var elementType  = property.PropertyType.GetTypeReference();
            var ptype        = mod.ImportReference(typeof(XPCollection <>)).MakeGenericType(elementType);
            var propertyInfo = new PropertyDefinition(property.称, PropertyAttributes.None, ptype)
            {
                HasThis = true
            };

            type.Properties.Add(propertyInfo);

            propertyInfo.Assocication(property);
            if (property.Aggregated)
            {
                propertyInfo.Aggregate();
            }

            #region getter
            //.method public hidebysig specialname instance string get_创建者() cil managedMono.Cecil.MethodAttributes.Public | Mono.Cecil.MethodAttributes.HideBySig | Mono.Cecil.MethodAttributes.SpecialName
            var attr = MethodAttributes.Public | MethodAttributes.HideBySig | MethodAttributes.SpecialName | MethodAttributes.FamANDAssem | MethodAttributes.Family;

            var getMethod = new MethodDefinition("get_" + property.称, attr, ptype);

            var getMethodIl = getMethod.Body.GetILProcessor();
            getMethod.Body.Variables.Add(new VariableDefinition(ptype));

            getMethod.Body.MaxStackSize = 8;

            getMethod.Body.InitLocals = true;
            //.maxstack 2
            //.locals init ([0] class [DevExpress.Xpo.v15.2]DevExpress.Xpo.XPCollection`1<class IMatrix.ERP.Module.BusinessObjects.员工> xps)
            //L_0000: nop
            //L_0001: ldarg.0
            //L_0002: ldstr "\u8054\u7cfb\u4eba"
            //L_0007: call instance class [DevExpress.Xpo.v15.2]DevExpress.Xpo.XPCollection`1<!!0> [DevExpress.Xpo.v15.2]DevExpress.Xpo.XPBaseObject::GetCollection<class IMatrix.ERP.Module.BusinessObjects.员工>(string)
            //L_000c: stloc.0
            //L_000d: br.s L_000f
            //L_000f: ldloc.0
            //L_0010: ret
            getMethodIl.Emit(OpCodes.Nop);
            getMethodIl.Emit(OpCodes.Ldarg_0);
            getMethodIl.Emit(OpCodes.Ldstr, property.称);
            var clrGetCollection = typeof(SimpleObject).GetMethods(SR.BindingFlags.NonPublic | SR.BindingFlags.Instance).Single(x => x.Name == "GetCollection" && x.ReturnType.IsGenericType);
            var getCollection    = mod.ImportReference(clrGetCollection); //(tb as TypeDefinition).Methods.Single(x => x.Name == ".ctor" && x.Parameters.First().ParameterType.FullName == typeof(Session).FullName);
            getCollection = getCollection.MakeGenericMethod(elementType);

            getMethodIl.Emit(OpCodes.Call, getCollection);
            getMethodIl.Emit(OpCodes.Stloc_0);

            var ldloc0 = getMethodIl.Create(OpCodes.Ldloc_0);
            getMethodIl.Emit(OpCodes.Br_S, ldloc0);
            getMethodIl.Append(ldloc0);
            getMethodIl.Emit(OpCodes.Ret);
            type.Methods.Add(getMethod);
            propertyInfo.GetMethod = getMethod;

            #endregion

            return(propertyInfo);
        }