说明：  三级菜单调用数据库带后台管理 index.asp为调用演示文件 fenlei.asp为后台管理首页文件 其余文件均为后台管理相关文件 数据库结构 类别1表名称：a 字段：ID,Name 说明：ID为主键是类别1的ID值，Name为类别1的名称 类别2表名称：aa 字段：ID,aID,Name 说明：ID为主键是类别2的ID值，aID为所属类别1的ID值，Name为类别2的名称 类别3表名称：aaa 字段：ID,aID,aaID,Name 说明：ID为主键是类别3的ID值，aID为所属类别1的ID值，aaID为所属类别2的ID值，Name为类别3的名称
(3 menu with a background call to the database management index.asp presentation for the call for the fenlei.asp Admin Home Admin file the remaining documents are relevant documents ' database structure' category 1 Table Name: a Field: ID, Name Description: ID the main key is the ID value of one category, Name is the name of the class a ' category 2 Table Name: aa fields: ID, aID, Name Note: ID-based key is the ID value of two categories, aID for the respective categories of one of the ID value of , Name is the name of the category 2 ' Category 3 Table Name: aaa fields: ID, aID, aaID, Name Note: ID-based key is the ID value of 3 categories, aID for the respective categories of one of the ID value, aaID for the respective categories of two The ID value, Name is the name of the Category 3)