实体属性符号列表

Function	Symbol
All Object Attributes	&ATTALL
Attribute Title	&ATTTL
Attribute Value	&ATTVL
Attribute Name	&NAME
Find the Nth Object with Given Name	&ENAME
Find the Prototype	&PROTO
Name Display Location (X,Y,Z)	&ATDISL
Number of Object Attributes	&NATTR