app功能结构完善

document/pdm/mall.pdm

 <?xml version="1.0" encoding="UTF-8"?>
-<?PowerDesigner AppLocale="UTF16" ID="{7BB41C87-EFE8-409A-A86E-B1C3FCE34F8C}" Label="" LastModificationDate="1528184156" Name="mall" Objects="987" Symbols="123" Target="MySQL 5.0" Type="{CDE44E21-9669-11D1-9914-006097355D9B}" signature="PDM_DATA_MODEL_XML" version="16.5.0.3982"?>
+<?PowerDesigner AppLocale="UTF16" ID="{7BB41C87-EFE8-409A-A86E-B1C3FCE34F8C}" Label="" LastModificationDate="1531100886" Name="mall" Objects="976" Symbols="123" Target="MySQL 5.0" Type="{CDE44E21-9669-11D1-9914-006097355D9B}" signature="PDM_DATA_MODEL_XML" version="16.5.0.3982"?>
 <!-- do not edit this file -->
 <Model xmlns:a="attribute" xmlns:c="collection" xmlns:o="object">
@@ -9075,9 +9075,9 @@ LABL 0 新宋体,8,N</a:FontList>
 <a:Code>value</a:Code>
 <a:CreationDate>1522046406</a:CreationDate>
 <a:Creator>zhenghong</a:Creator>
-<a:ModificationDate>1522046511</a:ModificationDate>
+<a:ModificationDate>1531100886</a:ModificationDate>
 <a:Modifier>zhenghong</a:Modifier>
-<a:Comment>存储的值</a:Comment>
+<a:Comment>手动添加规格或参数的值，参数单值，规格有多个时以逗号隔开</a:Comment>
 <a:DataType>varchar(64)</a:DataType>
 <a:Length>64</a:Length>
 </o:Column>